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https://github.com/shadps4-emu/ext-cryptopp.git
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2358 lines
100 KiB
C++
2358 lines
100 KiB
C++
// adv_simd.h - written and placed in the public domain by Jeffrey Walton
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/// \file adv_simd.h
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/// \brief Template for AdvancedProcessBlocks and SIMD processing
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// The SIMD based implementations for ciphers that use SSE, NEON and Power7
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// have a commom pattern. Namely, they have a specialized implementation of
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// AdvancedProcessBlocks which processes multiple block using hardware
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// acceleration. After several implementations we noticed a lot of copy and
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// paste occuring. adv_simd.h provides a template to avoid the copy and paste.
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//
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// There are 11 templates provided in this file. The number following the
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// function name, 64 or 128, is the block size. The name following the block
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// size is the arrangement and acceleration. For example 4x1_SSE means Intel
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// SSE using two encrypt (or decrypt) functions: one that operates on 4 SIMD
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// words, and one that operates on 1 SIMD words.
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//
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// The distinction between SIMD words versus cipher blocks is important
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// because 64-bit ciphers use one SIMD word for two cipher blocks. For
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// example, AdvancedProcessBlocks64_6x2_ALTIVEC operates on 6 and 2 SIMD
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// words, which is 12 and 4 cipher blocks. The function will do the right
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// thing even if there is only one 64-bit block to encrypt.
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//
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// * AdvancedProcessBlocks64_2x1_SSE
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// * AdvancedProcessBlocks64_4x1_SSE
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// * AdvancedProcessBlocks128_4x1_SSE
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// * AdvancedProcessBlocks64_6x2_SSE
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// * AdvancedProcessBlocks128_6x2_SSE
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// * AdvancedProcessBlocks64_6x2_NEON
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// * AdvancedProcessBlocks128_4x1_NEON
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// * AdvancedProcessBlocks128_6x2_NEON
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// * AdvancedProcessBlocks64_6x2_ALTIVEC
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// * AdvancedProcessBlocks128_4x1_ALTIVEC
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// * AdvancedProcessBlocks128_6x1_ALTIVEC
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//
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// If an arrangement ends in 2, like 6x2, then the template will handle the
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// single block case by padding with 0's and using the two SIMD word
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// function. This happens at most one time when processing multiple blocks.
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// The extra processing of a zero block is trivial and worth the tradeoff.
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//
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// The MAYBE_CONST macro present on x86 is a SunCC workaround. Some versions
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// of SunCC lose/drop the const-ness in the F1 and F4 functions. It eventually
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// results in a failed link due to the const/non-const mismatch.
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#ifndef CRYPTOPP_ADVANCED_SIMD_TEMPLATES
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#define CRYPTOPP_ADVANCED_SIMD_TEMPLATES
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#include "config.h"
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#include "misc.h"
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#include "stdcpp.h"
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// C1189: error: This header is specific to ARM targets
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#if (CRYPTOPP_ARM_NEON_AVAILABLE) && !defined(_M_ARM64)
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# include <arm_neon.h>
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#endif
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#if (CRYPTOPP_ARM_ACLE_AVAILABLE)
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# include <stdint.h>
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# include <arm_acle.h>
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#endif
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#if (CRYPTOPP_SSE2_INTRIN_AVAILABLE)
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# include <emmintrin.h>
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# include <xmmintrin.h>
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#endif
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// SunCC needs CRYPTOPP_SSSE3_AVAILABLE, too
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#if (CRYPTOPP_SSSE3_AVAILABLE)
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# include <emmintrin.h>
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# include <pmmintrin.h>
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# include <xmmintrin.h>
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#endif
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#if defined(__ALTIVEC__)
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# include "ppc_simd.h"
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#endif
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// ************************ All block ciphers *********************** //
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ANONYMOUS_NAMESPACE_BEGIN
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using CryptoPP::BlockTransformation;
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CRYPTOPP_CONSTANT(BT_XorInput = BlockTransformation::BT_XorInput)
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;
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CRYPTOPP_CONSTANT(BT_AllowParallel = BlockTransformation::BT_AllowParallel)
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;
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CRYPTOPP_CONSTANT(BT_InBlockIsCounter = BlockTransformation::BT_InBlockIsCounter)
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;
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CRYPTOPP_CONSTANT(BT_ReverseDirection = BlockTransformation::BT_ReverseDirection)
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;
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CRYPTOPP_CONSTANT(BT_DontIncrementInOutPointers = BlockTransformation::BT_DontIncrementInOutPointers)
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;
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ANONYMOUS_NAMESPACE_END
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// *************************** ARM NEON ************************** //
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#if (CRYPTOPP_ARM_NEON_AVAILABLE)
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NAMESPACE_BEGIN(CryptoPP)
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/// \brief AdvancedProcessBlocks for 2 and 6 blocks
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/// \tparam F2 function to process 2 64-bit blocks
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/// \tparam F6 function to process 6 64-bit blocks
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/// \tparam W word type of the subkey table
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/// \details AdvancedProcessBlocks64_6x2_NEON processes 6 and 2 NEON SIMD words
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/// at a time. For a single block the template uses F2 with a zero block.
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/// \details The subkey type is usually word32 or word64. F2 and F6 must use the
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/// same word type.
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template <typename F2, typename F6, typename W>
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inline size_t AdvancedProcessBlocks64_6x2_NEON(F2 func2, F6 func6,
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const W *subKeys, size_t rounds, const byte *inBlocks,
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const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
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{
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CRYPTOPP_ASSERT(subKeys);
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CRYPTOPP_ASSERT(inBlocks);
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CRYPTOPP_ASSERT(outBlocks);
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CRYPTOPP_ASSERT(length >= 8);
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const unsigned int w_one[] = {0, 0<<24, 0, 1<<24};
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const unsigned int w_two[] = {0, 2<<24, 0, 2<<24};
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const uint32x4_t s_one = vld1q_u32(w_one);
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const uint32x4_t s_two = vld1q_u32(w_two);
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const size_t blockSize = 8;
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const size_t neonBlockSize = 16;
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size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : neonBlockSize;
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size_t xorIncrement = (xorBlocks != NULLPTR) ? neonBlockSize : 0;
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size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : neonBlockSize;
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// Clang and Coverity are generating findings using xorBlocks as a flag.
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const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
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const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
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if (flags & BT_ReverseDirection)
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{
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inBlocks = PtrAdd(inBlocks, length - neonBlockSize);
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xorBlocks = PtrAdd(xorBlocks, length - neonBlockSize);
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outBlocks = PtrAdd(outBlocks, length - neonBlockSize);
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inIncrement = 0-inIncrement;
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xorIncrement = 0-xorIncrement;
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outIncrement = 0-outIncrement;
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}
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if (flags & BT_AllowParallel)
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{
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while (length >= 6*neonBlockSize)
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{
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uint32x4_t block0, block1, block2, block3, block4, block5;
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if (flags & BT_InBlockIsCounter)
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{
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// For 64-bit block ciphers we need to load the CTR block, which is 8 bytes.
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// After the dup load we have two counters in the NEON word. Then we need
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// to increment the low ctr by 0 and the high ctr by 1.
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const uint8x8_t ctr = vld1_u8(inBlocks);
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block0 = vaddq_u32(s_one, vreinterpretq_u32_u8(vcombine_u8(ctr,ctr)));
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// After initial increment of {0,1} remaining counters increment by {2,2}.
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block1 = vaddq_u32(s_two, block0);
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block2 = vaddq_u32(s_two, block1);
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block3 = vaddq_u32(s_two, block2);
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block4 = vaddq_u32(s_two, block3);
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block5 = vaddq_u32(s_two, block4);
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vst1_u8(const_cast<byte*>(inBlocks), vget_low_u8(
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vreinterpretq_u8_u32(vaddq_u32(s_two, block5))));
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}
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else
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{
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block0 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block1 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block2 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block3 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block4 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block5 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
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inBlocks = PtrAdd(inBlocks, inIncrement);
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}
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if (xorInput)
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{
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block0 = veorq_u32(block0, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block1 = veorq_u32(block1, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block2 = veorq_u32(block2, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block3 = veorq_u32(block3, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block4 = veorq_u32(block4, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block5 = veorq_u32(block5, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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}
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func6(block0, block1, block2, block3, block4, block5, subKeys, static_cast<unsigned int>(rounds));
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if (xorOutput)
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{
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block0 = veorq_u32(block0, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block1 = veorq_u32(block1, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block2 = veorq_u32(block2, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block3 = veorq_u32(block3, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block4 = veorq_u32(block4, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block5 = veorq_u32(block5, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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}
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vst1q_u8(outBlocks, vreinterpretq_u8_u32(block0));
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outBlocks = PtrAdd(outBlocks, outIncrement);
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vst1q_u8(outBlocks, vreinterpretq_u8_u32(block1));
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outBlocks = PtrAdd(outBlocks, outIncrement);
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vst1q_u8(outBlocks, vreinterpretq_u8_u32(block2));
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outBlocks = PtrAdd(outBlocks, outIncrement);
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vst1q_u8(outBlocks, vreinterpretq_u8_u32(block3));
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outBlocks = PtrAdd(outBlocks, outIncrement);
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vst1q_u8(outBlocks, vreinterpretq_u8_u32(block4));
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outBlocks = PtrAdd(outBlocks, outIncrement);
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vst1q_u8(outBlocks, vreinterpretq_u8_u32(block5));
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outBlocks = PtrAdd(outBlocks, outIncrement);
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length -= 6*neonBlockSize;
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}
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while (length >= 2*neonBlockSize)
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{
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uint32x4_t block0, block1;
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if (flags & BT_InBlockIsCounter)
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{
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// For 64-bit block ciphers we need to load the CTR block, which is 8 bytes.
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// After the dup load we have two counters in the NEON word. Then we need
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// to increment the low ctr by 0 and the high ctr by 1.
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const uint8x8_t ctr = vld1_u8(inBlocks);
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block0 = vaddq_u32(s_one, vreinterpretq_u32_u8(vcombine_u8(ctr,ctr)));
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// After initial increment of {0,1} remaining counters increment by {2,2}.
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block1 = vaddq_u32(s_two, block0);
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vst1_u8(const_cast<byte*>(inBlocks), vget_low_u8(
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vreinterpretq_u8_u32(vaddq_u32(s_two, block1))));
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}
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else
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{
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block0 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block1 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
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inBlocks = PtrAdd(inBlocks, inIncrement);
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}
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if (xorInput)
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{
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block0 = veorq_u32(block0, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block1 = veorq_u32(block1, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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}
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func2(block0, block1, subKeys, static_cast<unsigned int>(rounds));
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if (xorOutput)
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{
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block0 = veorq_u32(block0, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block1 = veorq_u32(block1, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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}
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vst1q_u8(outBlocks, vreinterpretq_u8_u32(block0));
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outBlocks = PtrAdd(outBlocks, outIncrement);
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vst1q_u8(outBlocks, vreinterpretq_u8_u32(block1));
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outBlocks = PtrAdd(outBlocks, outIncrement);
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length -= 2*neonBlockSize;
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}
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}
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if (length)
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{
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// Adjust to real block size
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if (flags & BT_ReverseDirection)
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{
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inIncrement += inIncrement ? blockSize : 0;
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xorIncrement += xorIncrement ? blockSize : 0;
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outIncrement += outIncrement ? blockSize : 0;
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inBlocks = PtrSub(inBlocks, inIncrement);
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xorBlocks = PtrSub(xorBlocks, xorIncrement);
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outBlocks = PtrSub(outBlocks, outIncrement);
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}
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else
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{
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inIncrement -= inIncrement ? blockSize : 0;
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xorIncrement -= xorIncrement ? blockSize : 0;
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outIncrement -= outIncrement ? blockSize : 0;
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}
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while (length >= blockSize)
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{
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uint32x4_t block, zero = {0};
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const uint8x8_t v = vld1_u8(inBlocks);
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block = vreinterpretq_u32_u8(vcombine_u8(v,v));
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if (xorInput)
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{
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const uint8x8_t x = vld1_u8(xorBlocks);
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block = veorq_u32(block, vreinterpretq_u32_u8(vcombine_u8(x,x)));
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}
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if (flags & BT_InBlockIsCounter)
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const_cast<byte *>(inBlocks)[7]++;
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func2(block, zero, subKeys, static_cast<unsigned int>(rounds));
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if (xorOutput)
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{
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const uint8x8_t x = vld1_u8(xorBlocks);
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block = veorq_u32(block, vreinterpretq_u32_u8(vcombine_u8(x,x)));
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}
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vst1_u8(const_cast<byte*>(outBlocks),
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vget_low_u8(vreinterpretq_u8_u32(block)));
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inBlocks = PtrAdd(inBlocks, inIncrement);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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length -= blockSize;
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}
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}
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return length;
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}
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/// \brief AdvancedProcessBlocks for 1 and 6 blocks
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/// \tparam F1 function to process 1 128-bit block
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/// \tparam F6 function to process 6 128-bit blocks
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/// \tparam W word type of the subkey table
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/// \details AdvancedProcessBlocks128_6x1_NEON processes 6 and 2 NEON SIMD words
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/// at a time.
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/// \details The subkey type is usually word32 or word64. F1 and F6 must use the
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/// same word type.
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template <typename F1, typename F6, typename W>
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inline size_t AdvancedProcessBlocks128_6x1_NEON(F1 func1, F6 func6,
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const W *subKeys, size_t rounds, const byte *inBlocks,
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const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
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{
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CRYPTOPP_ASSERT(subKeys);
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CRYPTOPP_ASSERT(inBlocks);
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CRYPTOPP_ASSERT(outBlocks);
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CRYPTOPP_ASSERT(length >= 16);
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const unsigned int w_one[] = {0, 0<<24, 0, 1<<24};
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const uint32x4_t s_one = vld1q_u32(w_one);
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const size_t blockSize = 16;
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// const size_t neonBlockSize = 16;
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size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : blockSize;
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size_t xorIncrement = (xorBlocks != NULLPTR) ? blockSize : 0;
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size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : blockSize;
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// Clang and Coverity are generating findings using xorBlocks as a flag.
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const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
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const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
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if (flags & BT_ReverseDirection)
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{
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inBlocks = PtrAdd(inBlocks, length - blockSize);
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xorBlocks = PtrAdd(xorBlocks, length - blockSize);
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outBlocks = PtrAdd(outBlocks, length - blockSize);
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inIncrement = 0-inIncrement;
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xorIncrement = 0-xorIncrement;
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outIncrement = 0-outIncrement;
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}
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if (flags & BT_AllowParallel)
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{
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while (length >= 6*blockSize)
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{
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uint64x2_t block0, block1, block2, block3, block4, block5;
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if (flags & BT_InBlockIsCounter)
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{
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const uint64x2_t one = vreinterpretq_u64_u32(s_one);
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block0 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
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block1 = vaddq_u64(block0, one);
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block2 = vaddq_u64(block1, one);
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block3 = vaddq_u64(block2, one);
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block4 = vaddq_u64(block3, one);
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block5 = vaddq_u64(block4, one);
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vst1q_u8(const_cast<byte*>(inBlocks),
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vreinterpretq_u8_u64(vaddq_u64(block5, one)));
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}
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else
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{
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block0 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
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inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block2 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block3 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block4 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block5 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = veorq_u64(block0, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = veorq_u64(block1, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = veorq_u64(block2, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = veorq_u64(block3, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block4 = veorq_u64(block4, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block5 = veorq_u64(block5, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func6(block0, block1, block2, block3, block4, block5, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = veorq_u64(block0, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = veorq_u64(block1, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = veorq_u64(block2, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = veorq_u64(block3, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block4 = veorq_u64(block4, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block5 = veorq_u64(block5, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block0));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block1));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block2));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block3));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block4));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block5));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 6*blockSize;
|
|
}
|
|
}
|
|
|
|
while (length >= blockSize)
|
|
{
|
|
uint64x2_t block;
|
|
block = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
|
|
if (xorInput)
|
|
block = veorq_u64(block, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
|
|
if (flags & BT_InBlockIsCounter)
|
|
const_cast<byte *>(inBlocks)[15]++;
|
|
|
|
func1(block, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
block = veorq_u64(block, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block));
|
|
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
length -= blockSize;
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
/// \brief AdvancedProcessBlocks for 1 and 4 blocks
|
|
/// \tparam F1 function to process 1 128-bit block
|
|
/// \tparam F4 function to process 4 128-bit blocks
|
|
/// \tparam W word type of the subkey table
|
|
/// \details AdvancedProcessBlocks128_4x1_NEON processes 4 and 1 NEON SIMD words
|
|
/// at a time.
|
|
/// \details The subkey type is usually word32 or word64. V is the vector type and it is
|
|
/// usually uint32x4_t or uint32x4_t. F1, F4, and W must use the same word and
|
|
/// vector type.
|
|
template <typename F1, typename F4, typename W>
|
|
inline size_t AdvancedProcessBlocks128_4x1_NEON(F1 func1, F4 func4,
|
|
const W *subKeys, size_t rounds, const byte *inBlocks,
|
|
const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
|
|
{
|
|
CRYPTOPP_ASSERT(subKeys);
|
|
CRYPTOPP_ASSERT(inBlocks);
|
|
CRYPTOPP_ASSERT(outBlocks);
|
|
CRYPTOPP_ASSERT(length >= 16);
|
|
|
|
const unsigned int w_one[] = {0, 0<<24, 0, 1<<24};
|
|
const uint32x4_t s_one = vld1q_u32(w_one);
|
|
|
|
const size_t blockSize = 16;
|
|
// const size_t neonBlockSize = 16;
|
|
|
|
size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : blockSize;
|
|
size_t xorIncrement = (xorBlocks != NULLPTR) ? blockSize : 0;
|
|
size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : blockSize;
|
|
|
|
// Clang and Coverity are generating findings using xorBlocks as a flag.
|
|
const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
|
|
const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
|
|
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inBlocks = PtrAdd(inBlocks, length - blockSize);
|
|
xorBlocks = PtrAdd(xorBlocks, length - blockSize);
|
|
outBlocks = PtrAdd(outBlocks, length - blockSize);
|
|
inIncrement = 0-inIncrement;
|
|
xorIncrement = 0-xorIncrement;
|
|
outIncrement = 0-outIncrement;
|
|
}
|
|
|
|
if (flags & BT_AllowParallel)
|
|
{
|
|
while (length >= 4*blockSize)
|
|
{
|
|
uint32x4_t block0, block1, block2, block3;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
const uint32x4_t one = s_one;
|
|
block0 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
|
|
block1 = vreinterpretq_u32_u64(vaddq_u64(vreinterpretq_u64_u32(block0), vreinterpretq_u64_u32(one)));
|
|
block2 = vreinterpretq_u32_u64(vaddq_u64(vreinterpretq_u64_u32(block1), vreinterpretq_u64_u32(one)));
|
|
block3 = vreinterpretq_u32_u64(vaddq_u64(vreinterpretq_u64_u32(block2), vreinterpretq_u64_u32(one)));
|
|
vst1q_u8(const_cast<byte*>(inBlocks), vreinterpretq_u8_u64(vaddq_u64(
|
|
vreinterpretq_u64_u32(block3), vreinterpretq_u64_u32(one))));
|
|
}
|
|
else
|
|
{
|
|
block0 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block2 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block3 = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = veorq_u32(block0, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = veorq_u32(block1, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = veorq_u32(block2, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = veorq_u32(block3, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func4(block0, block1, block2, block3, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = veorq_u32(block0, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = veorq_u32(block1, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = veorq_u32(block2, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = veorq_u32(block3, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u32(block0));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u32(block1));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u32(block2));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u32(block3));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 4*blockSize;
|
|
}
|
|
}
|
|
|
|
while (length >= blockSize)
|
|
{
|
|
uint32x4_t block = vreinterpretq_u32_u8(vld1q_u8(inBlocks));
|
|
|
|
if (xorInput)
|
|
block = veorq_u32(block, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
|
|
|
|
if (flags & BT_InBlockIsCounter)
|
|
const_cast<byte *>(inBlocks)[15]++;
|
|
|
|
func1(block, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
block = veorq_u32(block, vreinterpretq_u32_u8(vld1q_u8(xorBlocks)));
|
|
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u32(block));
|
|
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
length -= blockSize;
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
/// \brief AdvancedProcessBlocks for 2 and 6 blocks
|
|
/// \tparam F2 function to process 2 128-bit blocks
|
|
/// \tparam F6 function to process 6 128-bit blocks
|
|
/// \tparam W word type of the subkey table
|
|
/// \details AdvancedProcessBlocks128_6x2_NEON processes 6 and 2 NEON SIMD words
|
|
/// at a time. For a single block the template uses F2 with a zero block.
|
|
/// \details The subkey type is usually word32 or word64. F2 and F6 must use the
|
|
/// same word type.
|
|
template <typename F2, typename F6, typename W>
|
|
inline size_t AdvancedProcessBlocks128_6x2_NEON(F2 func2, F6 func6,
|
|
const W *subKeys, size_t rounds, const byte *inBlocks,
|
|
const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
|
|
{
|
|
CRYPTOPP_ASSERT(subKeys);
|
|
CRYPTOPP_ASSERT(inBlocks);
|
|
CRYPTOPP_ASSERT(outBlocks);
|
|
CRYPTOPP_ASSERT(length >= 16);
|
|
|
|
const unsigned int w_one[] = {0, 0<<24, 0, 1<<24};
|
|
const uint32x4_t s_one = vld1q_u32(w_one);
|
|
|
|
const size_t blockSize = 16;
|
|
// const size_t neonBlockSize = 16;
|
|
|
|
size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : blockSize;
|
|
size_t xorIncrement = (xorBlocks != NULLPTR) ? blockSize : 0;
|
|
size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : blockSize;
|
|
|
|
// Clang and Coverity are generating findings using xorBlocks as a flag.
|
|
const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
|
|
const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
|
|
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inBlocks = PtrAdd(inBlocks, length - blockSize);
|
|
xorBlocks = PtrAdd(xorBlocks, length - blockSize);
|
|
outBlocks = PtrAdd(outBlocks, length - blockSize);
|
|
inIncrement = 0-inIncrement;
|
|
xorIncrement = 0-xorIncrement;
|
|
outIncrement = 0-outIncrement;
|
|
}
|
|
|
|
if (flags & BT_AllowParallel)
|
|
{
|
|
while (length >= 6*blockSize)
|
|
{
|
|
uint64x2_t block0, block1, block2, block3, block4, block5;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
const uint64x2_t one = vreinterpretq_u64_u32(s_one);
|
|
block0 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
block1 = vaddq_u64(block0, one);
|
|
block2 = vaddq_u64(block1, one);
|
|
block3 = vaddq_u64(block2, one);
|
|
block4 = vaddq_u64(block3, one);
|
|
block5 = vaddq_u64(block4, one);
|
|
vst1q_u8(const_cast<byte*>(inBlocks),
|
|
vreinterpretq_u8_u64(vaddq_u64(block5, one)));
|
|
}
|
|
else
|
|
{
|
|
block0 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block2 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block3 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block4 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block5 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = veorq_u64(block0, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = veorq_u64(block1, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = veorq_u64(block2, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = veorq_u64(block3, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block4 = veorq_u64(block4, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block5 = veorq_u64(block5, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func6(block0, block1, block2, block3, block4, block5, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = veorq_u64(block0, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = veorq_u64(block1, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = veorq_u64(block2, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = veorq_u64(block3, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block4 = veorq_u64(block4, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block5 = veorq_u64(block5, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block0));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block1));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block2));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block3));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block4));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block5));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 6*blockSize;
|
|
}
|
|
|
|
while (length >= 2*blockSize)
|
|
{
|
|
uint64x2_t block0, block1;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
const uint64x2_t one = vreinterpretq_u64_u32(s_one);
|
|
block0 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
block1 = vaddq_u64(block0, one);
|
|
vst1q_u8(const_cast<byte*>(inBlocks),
|
|
vreinterpretq_u8_u64(vaddq_u64(block1, one)));
|
|
}
|
|
else
|
|
{
|
|
block0 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = veorq_u64(block0, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = veorq_u64(block1, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func2(block0, block1, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = veorq_u64(block0, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = veorq_u64(block1, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block0));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block1));
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 2*blockSize;
|
|
}
|
|
}
|
|
|
|
while (length >= blockSize)
|
|
{
|
|
uint64x2_t block, zero = {0,0};
|
|
block = vreinterpretq_u64_u8(vld1q_u8(inBlocks));
|
|
|
|
if (xorInput)
|
|
block = veorq_u64(block, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
|
|
if (flags & BT_InBlockIsCounter)
|
|
const_cast<byte *>(inBlocks)[15]++;
|
|
|
|
func2(block, zero, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
block = veorq_u64(block, vreinterpretq_u64_u8(vld1q_u8(xorBlocks)));
|
|
|
|
vst1q_u8(outBlocks, vreinterpretq_u8_u64(block));
|
|
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
length -= blockSize;
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
NAMESPACE_END // CryptoPP
|
|
|
|
#endif // CRYPTOPP_ARM_NEON_AVAILABLE
|
|
|
|
// *************************** Intel SSE ************************** //
|
|
|
|
#if defined(CRYPTOPP_SSSE3_AVAILABLE)
|
|
|
|
// Hack for SunCC, http://github.com/weidai11/cryptopp/issues/224
|
|
#if (__SUNPRO_CC >= 0x5130)
|
|
# define MAYBE_CONST
|
|
# define MAYBE_UNCONST_CAST(T, x) const_cast<MAYBE_CONST T>(x)
|
|
#else
|
|
# define MAYBE_CONST const
|
|
# define MAYBE_UNCONST_CAST(T, x) (x)
|
|
#endif
|
|
|
|
// Clang __m128i casts, http://bugs.llvm.org/show_bug.cgi?id=20670
|
|
#ifndef M128_CAST
|
|
# define M128_CAST(x) ((__m128i *)(void *)(x))
|
|
#endif
|
|
#ifndef CONST_M128_CAST
|
|
# define CONST_M128_CAST(x) ((const __m128i *)(const void *)(x))
|
|
#endif
|
|
|
|
NAMESPACE_BEGIN(CryptoPP)
|
|
|
|
/// \brief AdvancedProcessBlocks for 1 and 2 blocks
|
|
/// \tparam F1 function to process 1 64-bit block
|
|
/// \tparam F2 function to process 2 64-bit blocks
|
|
/// \tparam W word type of the subkey table
|
|
/// \details AdvancedProcessBlocks64_2x1_SSE processes 2 and 1 SSE SIMD words
|
|
/// at a time.
|
|
/// \details The subkey type is usually word32 or word64. F1 and F2 must use the
|
|
/// same word type.
|
|
template <typename F1, typename F2, typename W>
|
|
inline size_t AdvancedProcessBlocks64_2x1_SSE(F1 func1, F2 func2,
|
|
MAYBE_CONST W *subKeys, size_t rounds, const byte *inBlocks,
|
|
const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
|
|
{
|
|
CRYPTOPP_ASSERT(subKeys);
|
|
CRYPTOPP_ASSERT(inBlocks);
|
|
CRYPTOPP_ASSERT(outBlocks);
|
|
CRYPTOPP_ASSERT(length >= 8);
|
|
|
|
const size_t blockSize = 8;
|
|
const size_t xmmBlockSize = 16;
|
|
|
|
size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : xmmBlockSize;
|
|
size_t xorIncrement = (xorBlocks != NULLPTR) ? xmmBlockSize : 0;
|
|
size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : xmmBlockSize;
|
|
|
|
// Clang and Coverity are generating findings using xorBlocks as a flag.
|
|
const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
|
|
const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
|
|
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inBlocks = PtrAdd(inBlocks, length - xmmBlockSize);
|
|
xorBlocks = PtrAdd(xorBlocks, length - xmmBlockSize);
|
|
outBlocks = PtrAdd(outBlocks, length - xmmBlockSize);
|
|
inIncrement = 0-inIncrement;
|
|
xorIncrement = 0-xorIncrement;
|
|
outIncrement = 0-outIncrement;
|
|
}
|
|
|
|
if (flags & BT_AllowParallel)
|
|
{
|
|
double temp[2];
|
|
while (length >= 2*xmmBlockSize)
|
|
{
|
|
__m128i block0, block1;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
// Increment of 1 and 2 in big-endian compatible with the ctr byte array.
|
|
const __m128i s_one = _mm_set_epi32(1<<24, 0, 0, 0);
|
|
const __m128i s_two = _mm_set_epi32(2<<24, 0, 2<<24, 0);
|
|
|
|
// For 64-bit block ciphers we need to load the CTR block, which is 8 bytes.
|
|
// After the dup load we have two counters in the XMM word. Then we need
|
|
// to increment the low ctr by 0 and the high ctr by 1.
|
|
std::memcpy(temp, inBlocks, blockSize);
|
|
block0 = _mm_add_epi32(s_one, _mm_castpd_si128(_mm_loaddup_pd(temp)));
|
|
|
|
// After initial increment of {0,1} remaining counters increment by {2,2}.
|
|
block1 = _mm_add_epi32(s_two, block0);
|
|
|
|
// Store the next counter. When BT_InBlockIsCounter is set then
|
|
// inBlocks is backed by m_counterArray which is non-const.
|
|
_mm_store_sd(temp, _mm_castsi128_pd(_mm_add_epi64(s_two, block1)));
|
|
std::memcpy(const_cast<byte*>(inBlocks), temp, blockSize);
|
|
}
|
|
else
|
|
{
|
|
block0 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func2(block0, block1, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block0);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block1);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 2*xmmBlockSize;
|
|
}
|
|
}
|
|
|
|
if (length)
|
|
{
|
|
// Adjust to real block size
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inIncrement += inIncrement ? blockSize : 0;
|
|
xorIncrement += xorIncrement ? blockSize : 0;
|
|
outIncrement += outIncrement ? blockSize : 0;
|
|
inBlocks = PtrSub(inBlocks, inIncrement);
|
|
xorBlocks = PtrSub(xorBlocks, xorIncrement);
|
|
outBlocks = PtrSub(outBlocks, outIncrement);
|
|
}
|
|
else
|
|
{
|
|
inIncrement -= inIncrement ? blockSize : 0;
|
|
xorIncrement -= xorIncrement ? blockSize : 0;
|
|
outIncrement -= outIncrement ? blockSize : 0;
|
|
}
|
|
|
|
while (length >= blockSize)
|
|
{
|
|
double temp[2];
|
|
std::memcpy(temp, inBlocks, blockSize);
|
|
__m128i block = _mm_castpd_si128(_mm_load_sd(temp));
|
|
|
|
if (xorInput)
|
|
{
|
|
std::memcpy(temp, xorBlocks, blockSize);
|
|
block = _mm_xor_si128(block, _mm_castpd_si128(_mm_load_sd(temp)));
|
|
}
|
|
|
|
if (flags & BT_InBlockIsCounter)
|
|
const_cast<byte *>(inBlocks)[7]++;
|
|
|
|
func1(block, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
std::memcpy(temp, xorBlocks, blockSize);
|
|
block = _mm_xor_si128(block, _mm_castpd_si128(_mm_load_sd(temp)));
|
|
}
|
|
|
|
_mm_store_sd(temp, _mm_castsi128_pd(block));
|
|
std::memcpy(outBlocks, temp, blockSize);
|
|
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
length -= blockSize;
|
|
}
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
/// \brief AdvancedProcessBlocks for 2 and 6 blocks
|
|
/// \tparam F2 function to process 2 64-bit blocks
|
|
/// \tparam F6 function to process 6 64-bit blocks
|
|
/// \tparam W word type of the subkey table
|
|
/// \details AdvancedProcessBlocks64_6x2_SSE processes 6 and 2 SSE SIMD words
|
|
/// at a time. For a single block the template uses F2 with a zero block.
|
|
/// \details The subkey type is usually word32 or word64. F2 and F6 must use the
|
|
/// same word type.
|
|
template <typename F2, typename F6, typename W>
|
|
inline size_t AdvancedProcessBlocks64_6x2_SSE(F2 func2, F6 func6,
|
|
MAYBE_CONST W *subKeys, size_t rounds, const byte *inBlocks,
|
|
const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
|
|
{
|
|
CRYPTOPP_ASSERT(subKeys);
|
|
CRYPTOPP_ASSERT(inBlocks);
|
|
CRYPTOPP_ASSERT(outBlocks);
|
|
CRYPTOPP_ASSERT(length >= 8);
|
|
|
|
const size_t blockSize = 8;
|
|
const size_t xmmBlockSize = 16;
|
|
|
|
size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : xmmBlockSize;
|
|
size_t xorIncrement = (xorBlocks != NULLPTR) ? xmmBlockSize : 0;
|
|
size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : xmmBlockSize;
|
|
|
|
// Clang and Coverity are generating findings using xorBlocks as a flag.
|
|
const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
|
|
const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
|
|
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inBlocks = PtrAdd(inBlocks, length - xmmBlockSize);
|
|
xorBlocks = PtrAdd(xorBlocks, length - xmmBlockSize);
|
|
outBlocks = PtrAdd(outBlocks, length - xmmBlockSize);
|
|
inIncrement = 0-inIncrement;
|
|
xorIncrement = 0-xorIncrement;
|
|
outIncrement = 0-outIncrement;
|
|
}
|
|
|
|
if (flags & BT_AllowParallel)
|
|
{
|
|
double temp[2];
|
|
while (length >= 6*xmmBlockSize)
|
|
{
|
|
__m128i block0, block1, block2, block3, block4, block5;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
// Increment of 1 and 2 in big-endian compatible with the ctr byte array.
|
|
const __m128i s_one = _mm_set_epi32(1<<24, 0, 0, 0);
|
|
const __m128i s_two = _mm_set_epi32(2<<24, 0, 2<<24, 0);
|
|
|
|
// For 64-bit block ciphers we need to load the CTR block, which is 8 bytes.
|
|
// After the dup load we have two counters in the XMM word. Then we need
|
|
// to increment the low ctr by 0 and the high ctr by 1.
|
|
std::memcpy(temp, inBlocks, blockSize);
|
|
block0 = _mm_add_epi32(s_one, _mm_castpd_si128(_mm_loaddup_pd(temp)));
|
|
|
|
// After initial increment of {0,1} remaining counters increment by {2,2}.
|
|
block1 = _mm_add_epi32(s_two, block0);
|
|
block2 = _mm_add_epi32(s_two, block1);
|
|
block3 = _mm_add_epi32(s_two, block2);
|
|
block4 = _mm_add_epi32(s_two, block3);
|
|
block5 = _mm_add_epi32(s_two, block4);
|
|
|
|
// Store the next counter. When BT_InBlockIsCounter is set then
|
|
// inBlocks is backed by m_counterArray which is non-const.
|
|
_mm_store_sd(temp, _mm_castsi128_pd(_mm_add_epi32(s_two, block5)));
|
|
std::memcpy(const_cast<byte*>(inBlocks), temp, blockSize);
|
|
}
|
|
else
|
|
{
|
|
block0 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block2 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block3 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block4 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block5 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = _mm_xor_si128(block2, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = _mm_xor_si128(block3, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block4 = _mm_xor_si128(block4, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block5 = _mm_xor_si128(block5, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func6(block0, block1, block2, block3, block4, block5, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = _mm_xor_si128(block2, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = _mm_xor_si128(block3, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block4 = _mm_xor_si128(block4, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block5 = _mm_xor_si128(block5, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block0);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block1);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block2);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block3);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block4);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block5);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 6*xmmBlockSize;
|
|
}
|
|
|
|
while (length >= 2*xmmBlockSize)
|
|
{
|
|
__m128i block0, block1;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
// Increment of 1 and 2 in big-endian compatible with the ctr byte array.
|
|
const __m128i s_one = _mm_set_epi32(1<<24, 0, 0, 0);
|
|
const __m128i s_two = _mm_set_epi32(2<<24, 0, 2<<24, 0);
|
|
|
|
// For 64-bit block ciphers we need to load the CTR block, which is 8 bytes.
|
|
// After the dup load we have two counters in the XMM word. Then we need
|
|
// to increment the low ctr by 0 and the high ctr by 1.
|
|
std::memcpy(temp, inBlocks, blockSize);
|
|
block0 = _mm_add_epi32(s_one, _mm_castpd_si128(_mm_loaddup_pd(temp)));
|
|
|
|
// After initial increment of {0,1} remaining counters increment by {2,2}.
|
|
block1 = _mm_add_epi32(s_two, block0);
|
|
|
|
// Store the next counter. When BT_InBlockIsCounter is set then
|
|
// inBlocks is backed by m_counterArray which is non-const.
|
|
_mm_store_sd(temp, _mm_castsi128_pd(_mm_add_epi64(s_two, block1)));
|
|
std::memcpy(const_cast<byte*>(inBlocks), temp, blockSize);
|
|
}
|
|
else
|
|
{
|
|
block0 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func2(block0, block1, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block0);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block1);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 2*xmmBlockSize;
|
|
}
|
|
}
|
|
|
|
if (length)
|
|
{
|
|
// Adjust to real block size
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inIncrement += inIncrement ? blockSize : 0;
|
|
xorIncrement += xorIncrement ? blockSize : 0;
|
|
outIncrement += outIncrement ? blockSize : 0;
|
|
inBlocks = PtrSub(inBlocks, inIncrement);
|
|
xorBlocks = PtrSub(xorBlocks, xorIncrement);
|
|
outBlocks = PtrSub(outBlocks, outIncrement);
|
|
}
|
|
else
|
|
{
|
|
inIncrement -= inIncrement ? blockSize : 0;
|
|
xorIncrement -= xorIncrement ? blockSize : 0;
|
|
outIncrement -= outIncrement ? blockSize : 0;
|
|
}
|
|
|
|
while (length >= blockSize)
|
|
{
|
|
double temp[2];
|
|
__m128i block, zero = _mm_setzero_si128();
|
|
std::memcpy(temp, inBlocks, blockSize);
|
|
block = _mm_castpd_si128(_mm_load_sd(temp));
|
|
|
|
if (xorInput)
|
|
{
|
|
std::memcpy(temp, xorBlocks, blockSize);
|
|
block = _mm_xor_si128(block,
|
|
_mm_castpd_si128(_mm_load_sd(temp)));
|
|
}
|
|
|
|
if (flags & BT_InBlockIsCounter)
|
|
const_cast<byte *>(inBlocks)[7]++;
|
|
|
|
func2(block, zero, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
std::memcpy(temp, xorBlocks, blockSize);
|
|
block = _mm_xor_si128(block,
|
|
_mm_castpd_si128(_mm_load_sd(temp)));
|
|
}
|
|
|
|
_mm_store_sd(temp, _mm_castsi128_pd(block));
|
|
std::memcpy(outBlocks, temp, blockSize);
|
|
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
length -= blockSize;
|
|
}
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
/// \brief AdvancedProcessBlocks for 2 and 6 blocks
|
|
/// \tparam F2 function to process 2 128-bit blocks
|
|
/// \tparam F6 function to process 6 128-bit blocks
|
|
/// \tparam W word type of the subkey table
|
|
/// \details AdvancedProcessBlocks128_6x2_SSE processes 6 and 2 SSE SIMD words
|
|
/// at a time. For a single block the template uses F2 with a zero block.
|
|
/// \details The subkey type is usually word32 or word64. F2 and F6 must use the
|
|
/// same word type.
|
|
template <typename F2, typename F6, typename W>
|
|
inline size_t AdvancedProcessBlocks128_6x2_SSE(F2 func2, F6 func6,
|
|
MAYBE_CONST W *subKeys, size_t rounds, const byte *inBlocks,
|
|
const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
|
|
{
|
|
CRYPTOPP_ASSERT(subKeys);
|
|
CRYPTOPP_ASSERT(inBlocks);
|
|
CRYPTOPP_ASSERT(outBlocks);
|
|
CRYPTOPP_ASSERT(length >= 16);
|
|
|
|
const size_t blockSize = 16;
|
|
// const size_t xmmBlockSize = 16;
|
|
|
|
size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : blockSize;
|
|
size_t xorIncrement = (xorBlocks != NULLPTR) ? blockSize : 0;
|
|
size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : blockSize;
|
|
|
|
// Clang and Coverity are generating findings using xorBlocks as a flag.
|
|
const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
|
|
const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
|
|
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inBlocks = PtrAdd(inBlocks, length - blockSize);
|
|
xorBlocks = PtrAdd(xorBlocks, length - blockSize);
|
|
outBlocks = PtrAdd(outBlocks, length - blockSize);
|
|
inIncrement = 0-inIncrement;
|
|
xorIncrement = 0-xorIncrement;
|
|
outIncrement = 0-outIncrement;
|
|
}
|
|
|
|
if (flags & BT_AllowParallel)
|
|
{
|
|
while (length >= 6*blockSize)
|
|
{
|
|
__m128i block0, block1, block2, block3, block4, block5;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
// Increment of 1 in big-endian compatible with the ctr byte array.
|
|
const __m128i s_one = _mm_set_epi32(1<<24, 0, 0, 0);
|
|
block0 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
block1 = _mm_add_epi32(block0, s_one);
|
|
block2 = _mm_add_epi32(block1, s_one);
|
|
block3 = _mm_add_epi32(block2, s_one);
|
|
block4 = _mm_add_epi32(block3, s_one);
|
|
block5 = _mm_add_epi32(block4, s_one);
|
|
_mm_storeu_si128(M128_CAST(inBlocks), _mm_add_epi32(block5, s_one));
|
|
}
|
|
else
|
|
{
|
|
block0 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block2 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block3 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block4 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block5 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = _mm_xor_si128(block2, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = _mm_xor_si128(block3, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block4 = _mm_xor_si128(block4, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block5 = _mm_xor_si128(block5, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func6(block0, block1, block2, block3, block4, block5, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = _mm_xor_si128(block2, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = _mm_xor_si128(block3, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block4 = _mm_xor_si128(block4, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block5 = _mm_xor_si128(block5, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block0);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block1);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block2);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block3);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block4);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block5);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 6*blockSize;
|
|
}
|
|
|
|
while (length >= 2*blockSize)
|
|
{
|
|
__m128i block0, block1;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
// Increment of 1 in big-endian compatible with the ctr byte array.
|
|
const __m128i s_one = _mm_set_epi32(1<<24, 0, 0, 0);
|
|
block0 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
block1 = _mm_add_epi32(block0, s_one);
|
|
_mm_storeu_si128(M128_CAST(inBlocks), _mm_add_epi32(block1, s_one));
|
|
}
|
|
else
|
|
{
|
|
block0 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func2(block0, block1, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block0);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block1);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 2*blockSize;
|
|
}
|
|
}
|
|
|
|
while (length >= blockSize)
|
|
{
|
|
__m128i block, zero = _mm_setzero_si128();
|
|
block = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
|
|
if (xorInput)
|
|
block = _mm_xor_si128(block, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
|
|
if (flags & BT_InBlockIsCounter)
|
|
const_cast<byte *>(inBlocks)[15]++;
|
|
|
|
func2(block, zero, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
block = _mm_xor_si128(block, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block);
|
|
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
length -= blockSize;
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
/// \brief AdvancedProcessBlocks for 1 and 4 blocks
|
|
/// \tparam F1 function to process 1 128-bit block
|
|
/// \tparam F4 function to process 4 128-bit blocks
|
|
/// \tparam W word type of the subkey table
|
|
/// \details AdvancedProcessBlocks128_4x1_SSE processes 4 and 1 SSE SIMD words
|
|
/// at a time.
|
|
/// \details The subkey type is usually word32 or word64. F1 and F4 must use the
|
|
/// same word type.
|
|
template <typename F1, typename F4, typename W>
|
|
inline size_t AdvancedProcessBlocks128_4x1_SSE(F1 func1, F4 func4,
|
|
MAYBE_CONST W *subKeys, size_t rounds, const byte *inBlocks,
|
|
const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
|
|
{
|
|
CRYPTOPP_ASSERT(subKeys);
|
|
CRYPTOPP_ASSERT(inBlocks);
|
|
CRYPTOPP_ASSERT(outBlocks);
|
|
CRYPTOPP_ASSERT(length >= 16);
|
|
|
|
const size_t blockSize = 16;
|
|
// const size_t xmmBlockSize = 16;
|
|
|
|
size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : blockSize;
|
|
size_t xorIncrement = (xorBlocks != NULLPTR) ? blockSize : 0;
|
|
size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : blockSize;
|
|
|
|
// Clang and Coverity are generating findings using xorBlocks as a flag.
|
|
const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
|
|
const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
|
|
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inBlocks = PtrAdd(inBlocks, length - blockSize);
|
|
xorBlocks = PtrAdd(xorBlocks, length - blockSize);
|
|
outBlocks = PtrAdd(outBlocks, length - blockSize);
|
|
inIncrement = 0-inIncrement;
|
|
xorIncrement = 0-xorIncrement;
|
|
outIncrement = 0-outIncrement;
|
|
}
|
|
|
|
if (flags & BT_AllowParallel)
|
|
{
|
|
while (length >= 4*blockSize)
|
|
{
|
|
__m128i block0, block1, block2, block3;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
// Increment of 1 in big-endian compatible with the ctr byte array.
|
|
const __m128i s_one = _mm_set_epi32(1<<24, 0, 0, 0);
|
|
block0 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
block1 = _mm_add_epi32(block0, s_one);
|
|
block2 = _mm_add_epi32(block1, s_one);
|
|
block3 = _mm_add_epi32(block2, s_one);
|
|
_mm_storeu_si128(M128_CAST(inBlocks), _mm_add_epi32(block3, s_one));
|
|
}
|
|
else
|
|
{
|
|
block0 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block2 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block3 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = _mm_xor_si128(block2, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = _mm_xor_si128(block3, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func4(block0, block1, block2, block3, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = _mm_xor_si128(block2, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = _mm_xor_si128(block3, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block0);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block1);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block2);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block3);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 4*blockSize;
|
|
}
|
|
}
|
|
|
|
while (length >= blockSize)
|
|
{
|
|
__m128i block = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
|
|
if (xorInput)
|
|
block = _mm_xor_si128(block, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
|
|
if (flags & BT_InBlockIsCounter)
|
|
const_cast<byte *>(inBlocks)[15]++;
|
|
|
|
func1(block, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
block = _mm_xor_si128(block, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block);
|
|
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
length -= blockSize;
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
/// \brief AdvancedProcessBlocks for 1 and 4 blocks
|
|
/// \tparam F1 function to process 1 64-bit block
|
|
/// \tparam F4 function to process 6 64-bit blocks
|
|
/// \tparam W word type of the subkey table
|
|
/// \details AdvancedProcessBlocks64_4x1_SSE processes 4 and 1 SSE SIMD words
|
|
/// at a time.
|
|
/// \details The subkey type is usually word32 or word64. F1 and F4 must use the
|
|
/// same word type.
|
|
template <typename F1, typename F4, typename W>
|
|
inline size_t AdvancedProcessBlocks64_4x1_SSE(F1 func1, F4 func4,
|
|
MAYBE_CONST W *subKeys, size_t rounds, const byte *inBlocks,
|
|
const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
|
|
{
|
|
CRYPTOPP_ASSERT(subKeys);
|
|
CRYPTOPP_ASSERT(inBlocks);
|
|
CRYPTOPP_ASSERT(outBlocks);
|
|
CRYPTOPP_ASSERT(length >= 8);
|
|
|
|
const size_t blockSize = 8;
|
|
const size_t xmmBlockSize = 16;
|
|
|
|
size_t inIncrement = (flags & (BT_InBlockIsCounter | BT_DontIncrementInOutPointers)) ? 0 : xmmBlockSize;
|
|
size_t xorIncrement = (xorBlocks != NULLPTR) ? xmmBlockSize : 0;
|
|
size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : xmmBlockSize;
|
|
|
|
// Clang and Coverity are generating findings using xorBlocks as a flag.
|
|
const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
|
|
const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
|
|
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inBlocks = PtrAdd(inBlocks, length - xmmBlockSize);
|
|
xorBlocks = PtrAdd(xorBlocks, length - xmmBlockSize);
|
|
outBlocks = PtrAdd(outBlocks, length - xmmBlockSize);
|
|
inIncrement = 0 - inIncrement;
|
|
xorIncrement = 0 - xorIncrement;
|
|
outIncrement = 0 - outIncrement;
|
|
}
|
|
|
|
if (flags & BT_AllowParallel)
|
|
{
|
|
while (length >= 4*xmmBlockSize)
|
|
{
|
|
__m128i block0, block1, block2, block3;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
// Increment of 1 and 2 in big-endian compatible with the ctr byte array.
|
|
const __m128i s_one = _mm_set_epi32(1<<24, 0, 0, 0);
|
|
const __m128i s_two = _mm_set_epi32(2<<24, 0, 2<<24, 0);
|
|
double temp[2];
|
|
|
|
// For 64-bit block ciphers we need to load the CTR block, which is 8 bytes.
|
|
// After the dup load we have two counters in the XMM word. Then we need
|
|
// to increment the low ctr by 0 and the high ctr by 1.
|
|
std::memcpy(temp, inBlocks, blockSize);
|
|
block0 = _mm_add_epi32(s_one, _mm_castpd_si128(_mm_loaddup_pd(temp)));
|
|
|
|
// After initial increment of {0,1} remaining counters increment by {2,2}.
|
|
block1 = _mm_add_epi32(s_two, block0);
|
|
block2 = _mm_add_epi32(s_two, block1);
|
|
block3 = _mm_add_epi32(s_two, block2);
|
|
|
|
// Store the next counter. When BT_InBlockIsCounter is set then
|
|
// inBlocks is backed by m_counterArray which is non-const.
|
|
_mm_store_sd(temp, _mm_castsi128_pd(_mm_add_epi64(s_two, block3)));
|
|
std::memcpy(const_cast<byte*>(inBlocks), temp, blockSize);
|
|
}
|
|
else
|
|
{
|
|
block0 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block2 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block3 = _mm_loadu_si128(CONST_M128_CAST(inBlocks));
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = _mm_xor_si128(block2, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = _mm_xor_si128(block3, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func4(block0, block1, block2, block3, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = _mm_xor_si128(block2, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = _mm_xor_si128(block3, _mm_loadu_si128(CONST_M128_CAST(xorBlocks)));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block0);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block1);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block2);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
_mm_storeu_si128(M128_CAST(outBlocks), block3);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 4*xmmBlockSize;
|
|
}
|
|
}
|
|
|
|
if (length)
|
|
{
|
|
// Adjust to real block size
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inIncrement += inIncrement ? blockSize : 0;
|
|
xorIncrement += xorIncrement ? blockSize : 0;
|
|
outIncrement += outIncrement ? blockSize : 0;
|
|
inBlocks = PtrSub(inBlocks, inIncrement);
|
|
xorBlocks = PtrSub(xorBlocks, xorIncrement);
|
|
outBlocks = PtrSub(outBlocks, outIncrement);
|
|
}
|
|
else
|
|
{
|
|
inIncrement -= inIncrement ? blockSize : 0;
|
|
xorIncrement -= xorIncrement ? blockSize : 0;
|
|
outIncrement -= outIncrement ? blockSize : 0;
|
|
}
|
|
|
|
while (length >= blockSize)
|
|
{
|
|
double temp[2];
|
|
std::memcpy(temp, inBlocks, blockSize);
|
|
__m128i block = _mm_castpd_si128(_mm_load_sd(temp));
|
|
|
|
if (xorInput)
|
|
{
|
|
std::memcpy(temp, xorBlocks, blockSize);
|
|
block = _mm_xor_si128(block, _mm_castpd_si128(_mm_load_sd(temp)));
|
|
}
|
|
|
|
if (flags & BT_InBlockIsCounter)
|
|
const_cast<byte *>(inBlocks)[7]++;
|
|
|
|
func1(block, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
std::memcpy(temp, xorBlocks, blockSize);
|
|
block = _mm_xor_si128(block, _mm_castpd_si128(_mm_load_sd(temp)));
|
|
}
|
|
|
|
_mm_store_sd(temp, _mm_castsi128_pd(block));
|
|
std::memcpy(outBlocks, temp, blockSize);
|
|
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
length -= blockSize;
|
|
}
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
NAMESPACE_END // CryptoPP
|
|
|
|
#endif // CRYPTOPP_SSSE3_AVAILABLE
|
|
|
|
// *********************** Altivec/Power 4 ********************** //
|
|
|
|
#if defined(__ALTIVEC__)
|
|
|
|
NAMESPACE_BEGIN(CryptoPP)
|
|
|
|
/// \brief AdvancedProcessBlocks for 2 and 6 blocks
|
|
/// \tparam F2 function to process 2 128-bit blocks
|
|
/// \tparam F6 function to process 6 128-bit blocks
|
|
/// \tparam W word type of the subkey table
|
|
/// \details AdvancedProcessBlocks64_6x2_Altivec processes 6 and 2 Altivec SIMD words
|
|
/// at a time. For a single block the template uses F2 with a zero block.
|
|
/// \details The subkey type is usually word32 or word64. F2 and F6 must use the
|
|
/// same word type.
|
|
template <typename F2, typename F6, typename W>
|
|
inline size_t AdvancedProcessBlocks64_6x2_ALTIVEC(F2 func2, F6 func6,
|
|
const W *subKeys, size_t rounds, const byte *inBlocks,
|
|
const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
|
|
{
|
|
CRYPTOPP_ASSERT(subKeys);
|
|
CRYPTOPP_ASSERT(inBlocks);
|
|
CRYPTOPP_ASSERT(outBlocks);
|
|
CRYPTOPP_ASSERT(length >= 8);
|
|
|
|
#if (CRYPTOPP_LITTLE_ENDIAN)
|
|
enum {LowOffset=8, HighOffset=0};
|
|
const uint32x4_p s_one = {1,0,0,0};
|
|
const uint32x4_p s_two = {2,0,2,0};
|
|
#else
|
|
enum {LowOffset=8, HighOffset=0};
|
|
const uint32x4_p s_one = {0,0,0,1};
|
|
const uint32x4_p s_two = {0,2,0,2};
|
|
#endif
|
|
|
|
const size_t blockSize = 8;
|
|
const size_t vsxBlockSize = 16;
|
|
CRYPTOPP_ALIGN_DATA(16) uint8_t temp[16];
|
|
|
|
size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : vsxBlockSize;
|
|
size_t xorIncrement = (xorBlocks != NULLPTR) ? vsxBlockSize : 0;
|
|
size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : vsxBlockSize;
|
|
|
|
// Clang and Coverity are generating findings using xorBlocks as a flag.
|
|
const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
|
|
const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
|
|
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inBlocks = PtrAdd(inBlocks, length - vsxBlockSize);
|
|
xorBlocks = PtrAdd(xorBlocks, length - vsxBlockSize);
|
|
outBlocks = PtrAdd(outBlocks, length - vsxBlockSize);
|
|
inIncrement = 0-inIncrement;
|
|
xorIncrement = 0-xorIncrement;
|
|
outIncrement = 0-outIncrement;
|
|
}
|
|
|
|
if (flags & BT_AllowParallel)
|
|
{
|
|
while (length >= 6*vsxBlockSize)
|
|
{
|
|
uint32x4_p block0, block1, block2, block3, block4, block5;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
// There is no easy way to load 8-bytes into a vector. It is
|
|
// even harder without POWER8 due to lack of 64-bit elements.
|
|
std::memcpy(temp+LowOffset, inBlocks, 8);
|
|
std::memcpy(temp+HighOffset, inBlocks, 8);
|
|
uint32x4_p ctr = (uint32x4_p)VecLoadBE(temp);
|
|
|
|
// For 64-bit block ciphers we need to load the CTR block,
|
|
// which is 8 bytes. After the dup load we have two counters
|
|
// in the Altivec word. Then we need to increment the low ctr
|
|
// by 0 and the high ctr by 1.
|
|
block0 = VecAdd(s_one, ctr);
|
|
|
|
// After initial increment of {0,1} remaining counters
|
|
// increment by {2,2}.
|
|
block1 = VecAdd(s_two, block0);
|
|
block2 = VecAdd(s_two, block1);
|
|
block3 = VecAdd(s_two, block2);
|
|
block4 = VecAdd(s_two, block3);
|
|
block5 = VecAdd(s_two, block4);
|
|
|
|
// Update the counter in the caller.
|
|
const_cast<byte*>(inBlocks)[7] += 12;
|
|
}
|
|
else
|
|
{
|
|
block0 = VecLoadBE(inBlocks);
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = VecLoadBE(inBlocks);
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block2 = VecLoadBE(inBlocks);
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block3 = VecLoadBE(inBlocks);
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block4 = VecLoadBE(inBlocks);
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block5 = VecLoadBE(inBlocks);
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = VecXor(block0, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = VecXor(block1, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = VecXor(block2, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = VecXor(block3, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block4 = VecXor(block4, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block5 = VecXor(block5, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func6(block0, block1, block2, block3, block4, block5, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = VecXor(block0, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = VecXor(block1, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block2 = VecXor(block2, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block3 = VecXor(block3, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block4 = VecXor(block4, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block5 = VecXor(block5, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
VecStoreBE(block0, outBlocks);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
VecStoreBE(block1, outBlocks);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
VecStoreBE(block2, outBlocks);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
VecStoreBE(block3, outBlocks);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
VecStoreBE(block4, outBlocks);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
VecStoreBE(block5, outBlocks);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 6*vsxBlockSize;
|
|
}
|
|
|
|
while (length >= 2*vsxBlockSize)
|
|
{
|
|
uint32x4_p block0, block1;
|
|
if (flags & BT_InBlockIsCounter)
|
|
{
|
|
// There is no easy way to load 8-bytes into a vector. It is
|
|
// even harder without POWER8 due to lack of 64-bit elements.
|
|
std::memcpy(temp+LowOffset, inBlocks, 8);
|
|
std::memcpy(temp+HighOffset, inBlocks, 8);
|
|
uint32x4_p ctr = (uint32x4_p)VecLoadBE(temp);
|
|
|
|
// For 64-bit block ciphers we need to load the CTR block,
|
|
// which is 8 bytes. After the dup load we have two counters
|
|
// in the Altivec word. Then we need to increment the low ctr
|
|
// by 0 and the high ctr by 1.
|
|
block0 = VecAdd(s_one, ctr);
|
|
|
|
// After initial increment of {0,1} remaining counters
|
|
// increment by {2,2}.
|
|
block1 = VecAdd(s_two, block0);
|
|
|
|
// Update the counter in the caller.
|
|
const_cast<byte*>(inBlocks)[7] += 4;
|
|
}
|
|
else
|
|
{
|
|
block0 = VecLoadBE(inBlocks);
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
block1 = VecLoadBE(inBlocks);
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
}
|
|
|
|
if (xorInput)
|
|
{
|
|
block0 = VecXor(block0, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = VecXor(block1, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
func2(block0, block1, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
block0 = VecXor(block0, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
block1 = VecXor(block1, VecLoadBE(xorBlocks));
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
}
|
|
|
|
VecStoreBE(block0, outBlocks);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
VecStoreBE(block1, outBlocks);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
|
|
length -= 2*vsxBlockSize;
|
|
}
|
|
}
|
|
|
|
if (length)
|
|
{
|
|
// Adjust to real block size
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
inIncrement += inIncrement ? blockSize : 0;
|
|
xorIncrement += xorIncrement ? blockSize : 0;
|
|
outIncrement += outIncrement ? blockSize : 0;
|
|
inBlocks = PtrSub(inBlocks, inIncrement);
|
|
xorBlocks = PtrSub(xorBlocks, xorIncrement);
|
|
outBlocks = PtrSub(outBlocks, outIncrement);
|
|
}
|
|
else
|
|
{
|
|
inIncrement -= inIncrement ? blockSize : 0;
|
|
xorIncrement -= xorIncrement ? blockSize : 0;
|
|
outIncrement -= outIncrement ? blockSize : 0;
|
|
}
|
|
|
|
while (length >= blockSize)
|
|
{
|
|
uint32x4_p block, zero = {0};
|
|
|
|
// There is no easy way to load 8-bytes into a vector. It is
|
|
// even harder without POWER8 due to lack of 64-bit elements.
|
|
// The high 8 bytes are "don't care" but it if we don't
|
|
// initialize the block then it generates warnings.
|
|
std::memcpy(temp+LowOffset, inBlocks, 8);
|
|
std::memcpy(temp+HighOffset, inBlocks, 8); // don't care
|
|
block = (uint32x4_p)VecLoadBE(temp);
|
|
|
|
if (xorInput)
|
|
{
|
|
std::memcpy(temp+LowOffset, xorBlocks, 8);
|
|
std::memcpy(temp+HighOffset, xorBlocks, 8); // don't care
|
|
uint32x4_p x = (uint32x4_p)VecLoadBE(temp);
|
|
block = VecXor(block, x);
|
|
}
|
|
|
|
// Update the counter in the caller.
|
|
if (flags & BT_InBlockIsCounter)
|
|
const_cast<byte *>(inBlocks)[7]++;
|
|
|
|
func2(block, zero, subKeys, static_cast<unsigned int>(rounds));
|
|
|
|
if (xorOutput)
|
|
{
|
|
std::memcpy(temp+LowOffset, xorBlocks, 8);
|
|
std::memcpy(temp+HighOffset, xorBlocks, 8); // don't care
|
|
uint32x4_p x = (uint32x4_p)VecLoadBE(temp);
|
|
block = VecXor(block, x);
|
|
}
|
|
|
|
VecStoreBE(block, temp);
|
|
std::memcpy(outBlocks, temp+LowOffset, 8);
|
|
|
|
inBlocks = PtrAdd(inBlocks, inIncrement);
|
|
outBlocks = PtrAdd(outBlocks, outIncrement);
|
|
xorBlocks = PtrAdd(xorBlocks, xorIncrement);
|
|
length -= blockSize;
|
|
}
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
/// \brief AdvancedProcessBlocks for 1 and 4 blocks
|
|
/// \tparam F1 function to process 1 128-bit block
|
|
/// \tparam F4 function to process 4 128-bit blocks
|
|
/// \tparam W word type of the subkey table
|
|
/// \details AdvancedProcessBlocks128_4x1_ALTIVEC processes 4 and 1 Altivec SIMD words
|
|
/// at a time.
|
|
/// \details The subkey type is usually word32 or word64. F1 and F4 must use the
|
|
/// same word type.
|
|
template <typename F1, typename F4, typename W>
|
|
inline size_t AdvancedProcessBlocks128_4x1_ALTIVEC(F1 func1, F4 func4,
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const W *subKeys, size_t rounds, const byte *inBlocks,
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const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
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{
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CRYPTOPP_ASSERT(subKeys);
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CRYPTOPP_ASSERT(inBlocks);
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CRYPTOPP_ASSERT(outBlocks);
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CRYPTOPP_ASSERT(length >= 16);
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#if (CRYPTOPP_LITTLE_ENDIAN)
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const uint32x4_p s_one = {1,0,0,0};
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#else
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const uint32x4_p s_one = {0,0,0,1};
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#endif
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const size_t blockSize = 16;
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// const size_t vsxBlockSize = 16;
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size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : blockSize;
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size_t xorIncrement = (xorBlocks != NULLPTR) ? blockSize : 0;
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size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : blockSize;
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// Clang and Coverity are generating findings using xorBlocks as a flag.
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const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
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const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
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if (flags & BT_ReverseDirection)
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{
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inBlocks = PtrAdd(inBlocks, length - blockSize);
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xorBlocks = PtrAdd(xorBlocks, length - blockSize);
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outBlocks = PtrAdd(outBlocks, length - blockSize);
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inIncrement = 0-inIncrement;
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xorIncrement = 0-xorIncrement;
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outIncrement = 0-outIncrement;
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}
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if (flags & BT_AllowParallel)
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{
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while (length >= 4*blockSize)
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{
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uint32x4_p block0, block1, block2, block3;
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if (flags & BT_InBlockIsCounter)
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{
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block0 = VecLoadBE(inBlocks);
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block1 = VecAdd(block0, s_one);
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block2 = VecAdd(block1, s_one);
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block3 = VecAdd(block2, s_one);
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// Hack due to big-endian loads used by POWER8 (and maybe ARM-BE).
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// CTR_ModePolicy::OperateKeystream is wired such that after
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// returning from this function CTR_ModePolicy will detect wrap on
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// on the last counter byte and increment the next to last byte.
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// The problem is, with a big-endian load, inBlocks[15] is really
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// located at index 15. The vector addition using a 32-bit element
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// generates a carry into inBlocks[14] and then CTR_ModePolicy
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// increments inBlocks[14] too.
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const_cast<byte*>(inBlocks)[15] += 6;
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}
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else
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{
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block0 = VecLoadBE(inBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block1 = VecLoadBE(inBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block2 = VecLoadBE(inBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block3 = VecLoadBE(inBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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}
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if (xorInput)
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{
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block0 = VecXor(block0, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block1 = VecXor(block1, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block2 = VecXor(block2, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block3 = VecXor(block3, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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}
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func4(block0, block1, block2, block3, subKeys, rounds);
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if (xorOutput)
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{
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block0 = VecXor(block0, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block1 = VecXor(block1, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block2 = VecXor(block2, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block3 = VecXor(block3, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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}
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VecStoreBE(block0, outBlocks);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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VecStoreBE(block1, outBlocks);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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VecStoreBE(block2, outBlocks);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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VecStoreBE(block3, outBlocks);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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length -= 4*blockSize;
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}
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}
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while (length >= blockSize)
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{
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uint32x4_p block = VecLoadBE(inBlocks);
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if (xorInput)
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block = VecXor(block, VecLoadBE(xorBlocks));
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if (flags & BT_InBlockIsCounter)
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const_cast<byte *>(inBlocks)[15]++;
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func1(block, subKeys, rounds);
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if (xorOutput)
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block = VecXor(block, VecLoadBE(xorBlocks));
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VecStoreBE(block, outBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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length -= blockSize;
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}
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return length;
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}
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/// \brief AdvancedProcessBlocks for 1 and 6 blocks
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/// \tparam F1 function to process 1 128-bit block
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/// \tparam F6 function to process 6 128-bit blocks
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/// \tparam W word type of the subkey table
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/// \details AdvancedProcessBlocks128_6x1_ALTIVEC processes 6 and 1 Altivec SIMD words
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/// at a time.
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/// \details The subkey type is usually word32 or word64. F1 and F6 must use the
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/// same word type.
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template <typename F1, typename F6, typename W>
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inline size_t AdvancedProcessBlocks128_6x1_ALTIVEC(F1 func1, F6 func6,
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const W *subKeys, size_t rounds, const byte *inBlocks,
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const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
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{
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CRYPTOPP_ASSERT(subKeys);
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CRYPTOPP_ASSERT(inBlocks);
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CRYPTOPP_ASSERT(outBlocks);
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CRYPTOPP_ASSERT(length >= 16);
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#if (CRYPTOPP_LITTLE_ENDIAN)
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const uint32x4_p s_one = {1,0,0,0};
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#else
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const uint32x4_p s_one = {0,0,0,1};
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#endif
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const size_t blockSize = 16;
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// const size_t vsxBlockSize = 16;
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size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : blockSize;
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size_t xorIncrement = (xorBlocks != NULLPTR) ? blockSize : 0;
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size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : blockSize;
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// Clang and Coverity are generating findings using xorBlocks as a flag.
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const bool xorInput = (xorBlocks != NULLPTR) && (flags & BT_XorInput);
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const bool xorOutput = (xorBlocks != NULLPTR) && !(flags & BT_XorInput);
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if (flags & BT_ReverseDirection)
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{
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inBlocks = PtrAdd(inBlocks, length - blockSize);
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xorBlocks = PtrAdd(xorBlocks, length - blockSize);
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outBlocks = PtrAdd(outBlocks, length - blockSize);
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inIncrement = 0-inIncrement;
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xorIncrement = 0-xorIncrement;
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outIncrement = 0-outIncrement;
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}
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if (flags & BT_AllowParallel)
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{
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while (length >= 6*blockSize)
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{
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uint32x4_p block0, block1, block2, block3, block4, block5;
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if (flags & BT_InBlockIsCounter)
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{
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block0 = VecLoadBE(inBlocks);
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block1 = VecAdd(block0, s_one);
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block2 = VecAdd(block1, s_one);
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block3 = VecAdd(block2, s_one);
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block4 = VecAdd(block3, s_one);
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block5 = VecAdd(block4, s_one);
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// Hack due to big-endian loads used by POWER8 (and maybe ARM-BE).
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// CTR_ModePolicy::OperateKeystream is wired such that after
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// returning from this function CTR_ModePolicy will detect wrap on
|
|
// on the last counter byte and increment the next to last byte.
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|
// The problem is, with a big-endian load, inBlocks[15] is really
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// located at index 15. The vector addition using a 32-bit element
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// generates a carry into inBlocks[14] and then CTR_ModePolicy
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// increments inBlocks[14] too.
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//
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// To find this bug we needed a test case with a ctr of 0xNN...FA.
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// The last octet is 0xFA and adding 6 creates the wrap to trigger
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// the issue. If the last octet was 0xFC then 4 would trigger it.
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// We dumb-lucked into the test with SPECK-128. The test case of
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// interest is the one with IV 348ECA9766C09F04 826520DE47A212FA.
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uint8x16_p temp = VecAdd((uint8x16_p)block5, (uint8x16_p)s_one);
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VecStoreBE(temp, const_cast<byte*>(inBlocks));
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}
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else
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{
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block0 = VecLoadBE(inBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block1 = VecLoadBE(inBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block2 = VecLoadBE(inBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block3 = VecLoadBE(inBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block4 = VecLoadBE(inBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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block5 = VecLoadBE(inBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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}
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if (xorInput)
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{
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block0 = VecXor(block0, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block1 = VecXor(block1, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block2 = VecXor(block2, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block3 = VecXor(block3, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block4 = VecXor(block4, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block5 = VecXor(block5, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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}
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func6(block0, block1, block2, block3, block4, block5, subKeys, rounds);
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if (xorOutput)
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{
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block0 = VecXor(block0, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block1 = VecXor(block1, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block2 = VecXor(block2, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block3 = VecXor(block3, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block4 = VecXor(block4, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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block5 = VecXor(block5, VecLoadBE(xorBlocks));
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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}
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VecStoreBE(block0, outBlocks);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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VecStoreBE(block1, outBlocks);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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VecStoreBE(block2, outBlocks);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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VecStoreBE(block3, outBlocks);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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VecStoreBE(block4, outBlocks);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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VecStoreBE(block5, outBlocks);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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length -= 6*blockSize;
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}
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}
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while (length >= blockSize)
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{
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uint32x4_p block = VecLoadBE(inBlocks);
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if (xorInput)
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block = VecXor(block, VecLoadBE(xorBlocks));
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if (flags & BT_InBlockIsCounter)
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const_cast<byte *>(inBlocks)[15]++;
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func1(block, subKeys, rounds);
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if (xorOutput)
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block = VecXor(block, VecLoadBE(xorBlocks));
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VecStoreBE(block, outBlocks);
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inBlocks = PtrAdd(inBlocks, inIncrement);
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outBlocks = PtrAdd(outBlocks, outIncrement);
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xorBlocks = PtrAdd(xorBlocks, xorIncrement);
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length -= blockSize;
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}
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return length;
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}
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NAMESPACE_END // CryptoPP
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#endif // __ALTIVEC__
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#endif // CRYPTOPP_ADVANCED_SIMD_TEMPLATES
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