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1312 lines
41 KiB
C++
1312 lines
41 KiB
C++
// rijndael.cpp - modified by Chris Morgan <cmorgan@wpi.edu>
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// and Wei Dai from Paulo Baretto's Rijndael implementation
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// The original code and all modifications are in the public domain.
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// use "cl /EP /P /DCRYPTOPP_GENERATE_X64_MASM rijndael.cpp" to generate MASM code
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/*
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July 2010: Added support for AES-NI instructions via compiler intrinsics.
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*/
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/*
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Feb 2009: The x86/x64 assembly code was rewritten in by Wei Dai to do counter mode
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caching, which was invented by Hongjun Wu and popularized by Daniel J. Bernstein
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and Peter Schwabe in their paper "New AES software speed records". The round
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function was also modified to include a trick similar to one in Brian Gladman's
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x86 assembly code, doing an 8-bit register move to minimize the number of
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register spills. Also switched to compressed tables and copying round keys to
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the stack.
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The C++ implementation now uses compressed tables if
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CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS is defined.
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*/
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/*
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July 2006: Defense against timing attacks was added in by Wei Dai.
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The code now uses smaller tables in the first and last rounds,
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and preloads them into L1 cache before usage (by loading at least
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one element in each cache line).
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We try to delay subsequent accesses to each table (used in the first
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and last rounds) until all of the table has been preloaded. Hopefully
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the compiler isn't smart enough to optimize that code away.
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After preloading the table, we also try not to access any memory location
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other than the table and the stack, in order to prevent table entries from
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being unloaded from L1 cache, until that round is finished.
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(Some popular CPUs have 2-way associative caches.)
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*/
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// This is the original introductory comment:
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/**
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* version 3.0 (December 2000)
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*
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* Optimised ANSI C code for the Rijndael cipher (now AES)
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*
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* author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
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* author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
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* author Paulo Barreto <paulo.barreto@terra.com.br>
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*
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* This code is hereby placed in the public domain.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "pch.h"
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#include "config.h"
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#ifndef CRYPTOPP_IMPORTS
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#ifndef CRYPTOPP_GENERATE_X64_MASM
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#include "rijndael.h"
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#include "stdcpp.h" // alloca
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#include "misc.h"
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#include "cpu.h"
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NAMESPACE_BEGIN(CryptoPP)
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// Hack for https://github.com/weidai11/cryptopp/issues/42 and https://github.com/weidai11/cryptopp/issues/132
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#if (CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)) && !defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS)
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# define CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS 1
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#endif
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#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
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# if (CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)) && !defined(CRYPTOPP_DISABLE_RIJNDAEL_ASM)
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namespace rdtable {CRYPTOPP_ALIGN_DATA(16) word64 Te[256+2];}
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using namespace rdtable;
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# else
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static word64 Te[256];
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# endif
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static word64 Td[256];
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#else // Not CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
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# if defined(CRYPTOPP_X64_MASM_AVAILABLE)
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// Unused; avoids linker error on Microsoft X64 non-AESNI platforms
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namespace rdtable {CRYPTOPP_ALIGN_DATA(16) word64 Te[256+2];}
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# endif
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CRYPTOPP_ALIGN_DATA(16) static word32 Te[256*4];
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CRYPTOPP_ALIGN_DATA(16) static word32 Td[256*4];
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#endif // CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
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static volatile bool s_TeFilled = false, s_TdFilled = false;
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// ************************* Portable Code ************************************
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#define QUARTER_ROUND(L, T, t, a, b, c, d) \
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a ^= L(T, 3, byte(t)); t >>= 8;\
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b ^= L(T, 2, byte(t)); t >>= 8;\
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c ^= L(T, 1, byte(t)); t >>= 8;\
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d ^= L(T, 0, t);
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#define QUARTER_ROUND_LE(t, a, b, c, d) \
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tempBlock[a] = ((byte *)(Te+byte(t)))[1]; t >>= 8;\
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tempBlock[b] = ((byte *)(Te+byte(t)))[1]; t >>= 8;\
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tempBlock[c] = ((byte *)(Te+byte(t)))[1]; t >>= 8;\
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tempBlock[d] = ((byte *)(Te+t))[1];
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#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
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#define QUARTER_ROUND_LD(t, a, b, c, d) \
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tempBlock[a] = ((byte *)(Td+byte(t)))[GetNativeByteOrder()*7]; t >>= 8;\
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tempBlock[b] = ((byte *)(Td+byte(t)))[GetNativeByteOrder()*7]; t >>= 8;\
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tempBlock[c] = ((byte *)(Td+byte(t)))[GetNativeByteOrder()*7]; t >>= 8;\
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tempBlock[d] = ((byte *)(Td+t))[GetNativeByteOrder()*7];
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#else
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#define QUARTER_ROUND_LD(t, a, b, c, d) \
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tempBlock[a] = Sd[byte(t)]; t >>= 8;\
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tempBlock[b] = Sd[byte(t)]; t >>= 8;\
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tempBlock[c] = Sd[byte(t)]; t >>= 8;\
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tempBlock[d] = Sd[t];
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#endif
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#define QUARTER_ROUND_E(t, a, b, c, d) QUARTER_ROUND(TL_M, Te, t, a, b, c, d)
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#define QUARTER_ROUND_D(t, a, b, c, d) QUARTER_ROUND(TL_M, Td, t, a, b, c, d)
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#ifdef IS_LITTLE_ENDIAN
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#define QUARTER_ROUND_FE(t, a, b, c, d) QUARTER_ROUND(TL_F, Te, t, d, c, b, a)
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#define QUARTER_ROUND_FD(t, a, b, c, d) QUARTER_ROUND(TL_F, Td, t, d, c, b, a)
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#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
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#define TL_F(T, i, x) (*(word32 *)(void *)((byte *)T + x*8 + (6-i)%4+1))
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#define TL_M(T, i, x) (*(word32 *)(void *)((byte *)T + x*8 + (i+3)%4+1))
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#else
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#define TL_F(T, i, x) rotrFixed(T[x], (3-i)*8)
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#define TL_M(T, i, x) T[i*256 + x]
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#endif
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#else
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#define QUARTER_ROUND_FE(t, a, b, c, d) QUARTER_ROUND(TL_F, Te, t, a, b, c, d)
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#define QUARTER_ROUND_FD(t, a, b, c, d) QUARTER_ROUND(TL_F, Td, t, a, b, c, d)
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#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
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#define TL_F(T, i, x) (*(word32 *)(void *)((byte *)T + x*8 + (4-i)%4))
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#define TL_M TL_F
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#else
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#define TL_F(T, i, x) rotrFixed(T[x], i*8)
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#define TL_M(T, i, x) T[i*256 + x]
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#endif
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#endif
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#define f2(x) ((x<<1)^(((x>>7)&1)*0x11b))
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#define f4(x) ((x<<2)^(((x>>6)&1)*0x11b)^(((x>>6)&2)*0x11b))
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#define f8(x) ((x<<3)^(((x>>5)&1)*0x11b)^(((x>>5)&2)*0x11b)^(((x>>5)&4)*0x11b))
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#define f3(x) (f2(x) ^ x)
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#define f9(x) (f8(x) ^ x)
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#define fb(x) (f8(x) ^ f2(x) ^ x)
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#define fd(x) (f8(x) ^ f4(x) ^ x)
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#define fe(x) (f8(x) ^ f4(x) ^ f2(x))
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void Rijndael::Base::FillEncTable()
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{
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for (int i=0; i<256; i++)
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{
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byte x = Se[i];
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#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
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word32 y = word32(x)<<8 | word32(x)<<16 | word32(f2(x))<<24;
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Te[i] = word64(y | f3(x))<<32 | y;
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#else
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word32 y = f3(x) | word32(x)<<8 | word32(x)<<16 | word32(f2(x))<<24;
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for (int j=0; j<4; j++)
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{
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Te[i+j*256] = y;
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y = rotrFixed(y, 8);
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}
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#endif
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}
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#if (CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)) && !defined(CRYPTOPP_DISABLE_RIJNDAEL_ASM)
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Te[256] = Te[257] = 0;
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#endif
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s_TeFilled = true;
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}
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void Rijndael::Base::FillDecTable()
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{
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for (int i=0; i<256; i++)
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{
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byte x = Sd[i];
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#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
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word32 y = word32(fd(x))<<8 | word32(f9(x))<<16 | word32(fe(x))<<24;
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Td[i] = word64(y | fb(x))<<32 | y | x;
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#else
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word32 y = fb(x) | word32(fd(x))<<8 | word32(f9(x))<<16 | word32(fe(x))<<24;;
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for (int j=0; j<4; j++)
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{
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Td[i+j*256] = y;
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y = rotrFixed(y, 8);
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}
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#endif
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}
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s_TdFilled = true;
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}
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void Rijndael::Base::UncheckedSetKey(const byte *userKey, unsigned int keylen, const NameValuePairs &)
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{
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AssertValidKeyLength(keylen);
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m_rounds = keylen/4 + 6;
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m_key.New(4*(m_rounds+1));
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word32 *rk = m_key;
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#if (CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE && CRYPTOPP_BOOL_SSE4_INTRINSICS_AVAILABLE && (!defined(_MSC_VER) || _MSC_VER >= 1600 || CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32))
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// MSVC 2008 SP1 generates bad code for _mm_extract_epi32() when compiling for X64
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if (HasAESNI() && HasSSE4())
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{
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static const word32 rcLE[] = {
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0x01, 0x02, 0x04, 0x08,
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0x10, 0x20, 0x40, 0x80,
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0x1B, 0x36, /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */
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};
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const word32 *rc = rcLE;
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__m128i temp = _mm_loadu_si128((__m128i *)(void *)(userKey+keylen-16));
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memcpy(rk, userKey, keylen);
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while (true)
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{
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rk[keylen/4] = rk[0] ^ _mm_extract_epi32(_mm_aeskeygenassist_si128(temp, 0), 3) ^ *(rc++);
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rk[keylen/4+1] = rk[1] ^ rk[keylen/4];
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rk[keylen/4+2] = rk[2] ^ rk[keylen/4+1];
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rk[keylen/4+3] = rk[3] ^ rk[keylen/4+2];
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if (rk + keylen/4 + 4 == m_key.end())
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break;
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if (keylen == 24)
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{
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rk[10] = rk[ 4] ^ rk[ 9];
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rk[11] = rk[ 5] ^ rk[10];
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temp = _mm_insert_epi32(temp, rk[11], 3);
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}
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else if (keylen == 32)
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{
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temp = _mm_insert_epi32(temp, rk[11], 3);
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rk[12] = rk[ 4] ^ _mm_extract_epi32(_mm_aeskeygenassist_si128(temp, 0), 2);
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rk[13] = rk[ 5] ^ rk[12];
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rk[14] = rk[ 6] ^ rk[13];
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rk[15] = rk[ 7] ^ rk[14];
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temp = _mm_insert_epi32(temp, rk[15], 3);
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}
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else
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temp = _mm_insert_epi32(temp, rk[7], 3);
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rk += keylen/4;
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}
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if (!IsForwardTransformation())
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{
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rk = m_key;
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unsigned int i, j;
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std::swap(*(__m128i *)(void *)(rk), *(__m128i *)(void *)(rk+4*m_rounds));
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for (i = 4, j = 4*m_rounds-4; i < j; i += 4, j -= 4)
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{
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temp = _mm_aesimc_si128(*(__m128i *)(void *)(rk+i));
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*(__m128i *)(void *)(rk+i) = _mm_aesimc_si128(*(__m128i *)(void *)(rk+j));
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*(__m128i *)(void *)(rk+j) = temp;
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}
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*(__m128i *)(void *)(rk+i) = _mm_aesimc_si128(*(__m128i *)(void *)(rk+i));
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}
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return;
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}
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#endif
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GetUserKey(BIG_ENDIAN_ORDER, rk, keylen/4, userKey, keylen);
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const word32 *rc = rcon;
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word32 temp;
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while (true)
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{
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temp = rk[keylen/4-1];
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word32 x = (word32(Se[GETBYTE(temp, 2)]) << 24) ^ (word32(Se[GETBYTE(temp, 1)]) << 16) ^ (word32(Se[GETBYTE(temp, 0)]) << 8) ^ Se[GETBYTE(temp, 3)];
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rk[keylen/4] = rk[0] ^ x ^ *(rc++);
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rk[keylen/4+1] = rk[1] ^ rk[keylen/4];
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rk[keylen/4+2] = rk[2] ^ rk[keylen/4+1];
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rk[keylen/4+3] = rk[3] ^ rk[keylen/4+2];
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if (rk + keylen/4 + 4 == m_key.end())
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break;
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if (keylen == 24)
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{
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rk[10] = rk[ 4] ^ rk[ 9];
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rk[11] = rk[ 5] ^ rk[10];
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}
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else if (keylen == 32)
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{
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temp = rk[11];
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rk[12] = rk[ 4] ^ (word32(Se[GETBYTE(temp, 3)]) << 24) ^ (word32(Se[GETBYTE(temp, 2)]) << 16) ^ (word32(Se[GETBYTE(temp, 1)]) << 8) ^ Se[GETBYTE(temp, 0)];
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rk[13] = rk[ 5] ^ rk[12];
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rk[14] = rk[ 6] ^ rk[13];
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rk[15] = rk[ 7] ^ rk[14];
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}
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rk += keylen/4;
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}
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rk = m_key;
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if (IsForwardTransformation())
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{
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if (!s_TeFilled)
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FillEncTable();
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ConditionalByteReverse(BIG_ENDIAN_ORDER, rk, rk, 16);
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ConditionalByteReverse(BIG_ENDIAN_ORDER, rk + m_rounds*4, rk + m_rounds*4, 16);
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}
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else
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{
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if (!s_TdFilled)
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FillDecTable();
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unsigned int i, j;
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#define InverseMixColumn(x) TL_M(Td, 0, Se[GETBYTE(x, 3)]) ^ TL_M(Td, 1, Se[GETBYTE(x, 2)]) ^ TL_M(Td, 2, Se[GETBYTE(x, 1)]) ^ TL_M(Td, 3, Se[GETBYTE(x, 0)])
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for (i = 4, j = 4*m_rounds-4; i < j; i += 4, j -= 4)
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{
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temp = InverseMixColumn(rk[i ]); rk[i ] = InverseMixColumn(rk[j ]); rk[j ] = temp;
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temp = InverseMixColumn(rk[i + 1]); rk[i + 1] = InverseMixColumn(rk[j + 1]); rk[j + 1] = temp;
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temp = InverseMixColumn(rk[i + 2]); rk[i + 2] = InverseMixColumn(rk[j + 2]); rk[j + 2] = temp;
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temp = InverseMixColumn(rk[i + 3]); rk[i + 3] = InverseMixColumn(rk[j + 3]); rk[j + 3] = temp;
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}
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rk[i+0] = InverseMixColumn(rk[i+0]);
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rk[i+1] = InverseMixColumn(rk[i+1]);
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rk[i+2] = InverseMixColumn(rk[i+2]);
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rk[i+3] = InverseMixColumn(rk[i+3]);
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temp = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[0]); rk[0] = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[4*m_rounds+0]); rk[4*m_rounds+0] = temp;
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temp = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[1]); rk[1] = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[4*m_rounds+1]); rk[4*m_rounds+1] = temp;
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temp = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[2]); rk[2] = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[4*m_rounds+2]); rk[4*m_rounds+2] = temp;
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temp = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[3]); rk[3] = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[4*m_rounds+3]); rk[4*m_rounds+3] = temp;
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}
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#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
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if (HasAESNI())
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ConditionalByteReverse(BIG_ENDIAN_ORDER, rk+4, rk+4, (m_rounds-1)*16);
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#endif
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}
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void Rijndael::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
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{
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#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE) || CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
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#if (CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)) && !defined(CRYPTOPP_DISABLE_RIJNDAEL_ASM)
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if (HasSSE2())
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#else
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if (HasAESNI())
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#endif
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{
|
|
return (void)Rijndael::Enc::AdvancedProcessBlocks(inBlock, xorBlock, outBlock, 16, 0);
|
|
}
|
|
#endif
|
|
|
|
typedef BlockGetAndPut<word32, NativeByteOrder> Block;
|
|
|
|
word32 s0, s1, s2, s3, t0, t1, t2, t3;
|
|
Block::Get(inBlock)(s0)(s1)(s2)(s3);
|
|
|
|
const word32 *rk = m_key;
|
|
s0 ^= rk[0];
|
|
s1 ^= rk[1];
|
|
s2 ^= rk[2];
|
|
s3 ^= rk[3];
|
|
t0 = rk[4];
|
|
t1 = rk[5];
|
|
t2 = rk[6];
|
|
t3 = rk[7];
|
|
rk += 8;
|
|
|
|
// timing attack countermeasure. see comments at top for more details.
|
|
// also see http://github.com/weidai11/cryptopp/issues/146
|
|
const int cacheLineSize = GetCacheLineSize();
|
|
unsigned int i;
|
|
volatile word32 _u = 0;
|
|
word32 u = _u;
|
|
#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
|
|
for (i=0; i<2048; i+=cacheLineSize)
|
|
#else
|
|
for (i=0; i<1024; i+=cacheLineSize)
|
|
#endif
|
|
u &= *(const word32 *)(const void *)(((const byte *)Te)+i);
|
|
u &= Te[255];
|
|
s0 |= u; s1 |= u; s2 |= u; s3 |= u;
|
|
|
|
QUARTER_ROUND_FE(s3, t0, t1, t2, t3)
|
|
QUARTER_ROUND_FE(s2, t3, t0, t1, t2)
|
|
QUARTER_ROUND_FE(s1, t2, t3, t0, t1)
|
|
QUARTER_ROUND_FE(s0, t1, t2, t3, t0)
|
|
|
|
// Nr - 2 full rounds:
|
|
unsigned int r = m_rounds/2 - 1;
|
|
do
|
|
{
|
|
s0 = rk[0]; s1 = rk[1]; s2 = rk[2]; s3 = rk[3];
|
|
|
|
QUARTER_ROUND_E(t3, s0, s1, s2, s3)
|
|
QUARTER_ROUND_E(t2, s3, s0, s1, s2)
|
|
QUARTER_ROUND_E(t1, s2, s3, s0, s1)
|
|
QUARTER_ROUND_E(t0, s1, s2, s3, s0)
|
|
|
|
t0 = rk[4]; t1 = rk[5]; t2 = rk[6]; t3 = rk[7];
|
|
|
|
QUARTER_ROUND_E(s3, t0, t1, t2, t3)
|
|
QUARTER_ROUND_E(s2, t3, t0, t1, t2)
|
|
QUARTER_ROUND_E(s1, t2, t3, t0, t1)
|
|
QUARTER_ROUND_E(s0, t1, t2, t3, t0)
|
|
|
|
rk += 8;
|
|
} while (--r);
|
|
|
|
word32 tbw[4];
|
|
byte *const tempBlock = (byte *)tbw;
|
|
|
|
QUARTER_ROUND_LE(t2, 15, 2, 5, 8)
|
|
QUARTER_ROUND_LE(t1, 11, 14, 1, 4)
|
|
QUARTER_ROUND_LE(t0, 7, 10, 13, 0)
|
|
QUARTER_ROUND_LE(t3, 3, 6, 9, 12)
|
|
|
|
Block::Put(xorBlock, outBlock)(tbw[0]^rk[0])(tbw[1]^rk[1])(tbw[2]^rk[2])(tbw[3]^rk[3]);
|
|
}
|
|
|
|
void Rijndael::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
|
|
{
|
|
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
|
|
if (HasAESNI())
|
|
{
|
|
Rijndael::Dec::AdvancedProcessBlocks(inBlock, xorBlock, outBlock, 16, 0);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
typedef BlockGetAndPut<word32, NativeByteOrder> Block;
|
|
|
|
word32 s0, s1, s2, s3, t0, t1, t2, t3;
|
|
Block::Get(inBlock)(s0)(s1)(s2)(s3);
|
|
|
|
const word32 *rk = m_key;
|
|
s0 ^= rk[0];
|
|
s1 ^= rk[1];
|
|
s2 ^= rk[2];
|
|
s3 ^= rk[3];
|
|
t0 = rk[4];
|
|
t1 = rk[5];
|
|
t2 = rk[6];
|
|
t3 = rk[7];
|
|
rk += 8;
|
|
|
|
// timing attack countermeasure. see comments at top for more details.
|
|
// also see http://github.com/weidai11/cryptopp/issues/146
|
|
const int cacheLineSize = GetCacheLineSize();
|
|
unsigned int i;
|
|
volatile word32 _u = 0;
|
|
word32 u = _u;
|
|
#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
|
|
for (i=0; i<2048; i+=cacheLineSize)
|
|
#else
|
|
for (i=0; i<1024; i+=cacheLineSize)
|
|
#endif
|
|
u &= *(const word32 *)(const void *)(((const byte *)Td)+i);
|
|
u &= Td[255];
|
|
s0 |= u; s1 |= u; s2 |= u; s3 |= u;
|
|
|
|
QUARTER_ROUND_FD(s3, t2, t1, t0, t3)
|
|
QUARTER_ROUND_FD(s2, t1, t0, t3, t2)
|
|
QUARTER_ROUND_FD(s1, t0, t3, t2, t1)
|
|
QUARTER_ROUND_FD(s0, t3, t2, t1, t0)
|
|
|
|
// Nr - 2 full rounds:
|
|
unsigned int r = m_rounds/2 - 1;
|
|
do
|
|
{
|
|
s0 = rk[0]; s1 = rk[1]; s2 = rk[2]; s3 = rk[3];
|
|
|
|
QUARTER_ROUND_D(t3, s2, s1, s0, s3)
|
|
QUARTER_ROUND_D(t2, s1, s0, s3, s2)
|
|
QUARTER_ROUND_D(t1, s0, s3, s2, s1)
|
|
QUARTER_ROUND_D(t0, s3, s2, s1, s0)
|
|
|
|
t0 = rk[4]; t1 = rk[5]; t2 = rk[6]; t3 = rk[7];
|
|
|
|
QUARTER_ROUND_D(s3, t2, t1, t0, t3)
|
|
QUARTER_ROUND_D(s2, t1, t0, t3, t2)
|
|
QUARTER_ROUND_D(s1, t0, t3, t2, t1)
|
|
QUARTER_ROUND_D(s0, t3, t2, t1, t0)
|
|
|
|
rk += 8;
|
|
} while (--r);
|
|
|
|
#if !(defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS))
|
|
// timing attack countermeasure. see comments at top for more details
|
|
// If CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS is defined,
|
|
// QUARTER_ROUND_LD will use Td, which is already preloaded.
|
|
u = _u;
|
|
for (i=0; i<256; i+=cacheLineSize)
|
|
u &= *(const word32 *)(const void *)(Sd+i);
|
|
u &= *(const word32 *)(const void *)(Sd+252);
|
|
t0 |= u; t1 |= u; t2 |= u; t3 |= u;
|
|
#endif
|
|
|
|
word32 tbw[4];
|
|
byte *const tempBlock = (byte *)tbw;
|
|
|
|
QUARTER_ROUND_LD(t2, 7, 2, 13, 8)
|
|
QUARTER_ROUND_LD(t1, 3, 14, 9, 4)
|
|
QUARTER_ROUND_LD(t0, 15, 10, 5, 0)
|
|
QUARTER_ROUND_LD(t3, 11, 6, 1, 12)
|
|
|
|
Block::Put(xorBlock, outBlock)(tbw[0]^rk[0])(tbw[1]^rk[1])(tbw[2]^rk[2])(tbw[3]^rk[3]);
|
|
}
|
|
|
|
// ************************* Assembly Code ************************************
|
|
|
|
#if CRYPTOPP_MSC_VERSION
|
|
# pragma warning(disable: 4731) // frame pointer register 'ebp' modified by inline assembly code
|
|
#endif
|
|
|
|
#endif // #ifndef CRYPTOPP_GENERATE_X64_MASM
|
|
|
|
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE && !defined(CRYPTOPP_DISABLE_RIJNDAEL_ASM)
|
|
|
|
CRYPTOPP_NAKED void CRYPTOPP_FASTCALL Rijndael_Enc_AdvancedProcessBlocks(void *locals, const word32 *k)
|
|
{
|
|
CRYPTOPP_UNUSED(locals); CRYPTOPP_UNUSED(k);
|
|
|
|
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
|
|
|
|
#define L_REG esp
|
|
#define L_INDEX(i) (L_REG+768+i)
|
|
#define L_INXORBLOCKS L_INBLOCKS+4
|
|
#define L_OUTXORBLOCKS L_INBLOCKS+8
|
|
#define L_OUTBLOCKS L_INBLOCKS+12
|
|
#define L_INCREMENTS L_INDEX(16*15)
|
|
#define L_SP L_INDEX(16*16)
|
|
#define L_LENGTH L_INDEX(16*16+4)
|
|
#define L_KEYS_BEGIN L_INDEX(16*16+8)
|
|
|
|
#define MOVD movd
|
|
#define MM(i) mm##i
|
|
|
|
#define MXOR(a,b,c) \
|
|
AS2( movzx esi, b)\
|
|
AS2( movd mm7, DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
|
|
AS2( pxor MM(a), mm7)\
|
|
|
|
#define MMOV(a,b,c) \
|
|
AS2( movzx esi, b)\
|
|
AS2( movd MM(a), DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
|
|
|
|
#else
|
|
|
|
#define L_REG r8
|
|
#define L_INDEX(i) (L_REG+i)
|
|
#define L_INXORBLOCKS L_INBLOCKS+8
|
|
#define L_OUTXORBLOCKS L_INBLOCKS+16
|
|
#define L_OUTBLOCKS L_INBLOCKS+24
|
|
#define L_INCREMENTS L_INDEX(16*16)
|
|
#define L_LENGTH L_INDEX(16*18+8)
|
|
#define L_KEYS_BEGIN L_INDEX(16*19)
|
|
|
|
#define MOVD mov
|
|
#define MM_0 r9d
|
|
#define MM_1 r12d
|
|
#ifdef __GNUC__
|
|
#define MM_2 r11d
|
|
#else
|
|
#define MM_2 r10d
|
|
#endif
|
|
#define MM(i) MM_##i
|
|
|
|
#define MXOR(a,b,c) \
|
|
AS2( movzx esi, b)\
|
|
AS2( xor MM(a), DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
|
|
|
|
#define MMOV(a,b,c) \
|
|
AS2( movzx esi, b)\
|
|
AS2( mov MM(a), DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
|
|
|
|
#endif
|
|
|
|
#define L_SUBKEYS L_INDEX(0)
|
|
#define L_SAVED_X L_SUBKEYS
|
|
#define L_KEY12 L_INDEX(16*12)
|
|
#define L_LASTROUND L_INDEX(16*13)
|
|
#define L_INBLOCKS L_INDEX(16*14)
|
|
#define MAP0TO4(i) (ASM_MOD(i+3,4)+1)
|
|
|
|
#define XOR(a,b,c) \
|
|
AS2( movzx esi, b)\
|
|
AS2( xor a, DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
|
|
|
|
#define MOV(a,b,c) \
|
|
AS2( movzx esi, b)\
|
|
AS2( mov a, DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
|
|
|
|
#ifdef CRYPTOPP_GENERATE_X64_MASM
|
|
ALIGN 8
|
|
Rijndael_Enc_AdvancedProcessBlocks PROC FRAME
|
|
rex_push_reg rsi
|
|
push_reg rdi
|
|
push_reg rbx
|
|
push_reg r12
|
|
.endprolog
|
|
mov L_REG, rcx
|
|
mov AS_REG_7, ?Te@rdtable@CryptoPP@@3PA_KA
|
|
mov edi, DWORD PTR [?g_cacheLineSize@CryptoPP@@3IA]
|
|
#elif defined(__GNUC__)
|
|
__asm__ __volatile__
|
|
(
|
|
INTEL_NOPREFIX
|
|
#if CRYPTOPP_BOOL_X64
|
|
AS2( mov L_REG, rcx)
|
|
#endif
|
|
AS_PUSH_IF86(bx)
|
|
AS_PUSH_IF86(bp)
|
|
AS2( mov AS_REG_7, WORD_REG(si))
|
|
#else
|
|
AS_PUSH_IF86(si)
|
|
AS_PUSH_IF86(di)
|
|
AS_PUSH_IF86(bx)
|
|
AS_PUSH_IF86(bp)
|
|
AS2( lea AS_REG_7, [Te])
|
|
AS2( mov edi, [g_cacheLineSize])
|
|
#endif
|
|
|
|
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
|
|
AS2( mov [ecx+16*12+16*4], esp) // save esp to L_SP
|
|
AS2( lea esp, [ecx-768])
|
|
#endif
|
|
|
|
// copy subkeys to stack
|
|
AS2( mov WORD_REG(si), [L_KEYS_BEGIN])
|
|
AS2( mov WORD_REG(ax), 16)
|
|
AS2( and WORD_REG(ax), WORD_REG(si))
|
|
AS2( movdqa xmm3, XMMWORD_PTR [WORD_REG(dx)+16+WORD_REG(ax)]) // subkey 1 (non-counter) or 2 (counter)
|
|
AS2( movdqa [L_KEY12], xmm3)
|
|
AS2( lea WORD_REG(ax), [WORD_REG(dx)+WORD_REG(ax)+2*16])
|
|
AS2( sub WORD_REG(ax), WORD_REG(si))
|
|
ASL(0)
|
|
AS2( movdqa xmm0, [WORD_REG(ax)+WORD_REG(si)])
|
|
AS2( movdqa XMMWORD_PTR [L_SUBKEYS+WORD_REG(si)], xmm0)
|
|
AS2( add WORD_REG(si), 16)
|
|
AS2( cmp WORD_REG(si), 16*12)
|
|
ATT_NOPREFIX
|
|
ASJ( jl, 0, b)
|
|
INTEL_NOPREFIX
|
|
|
|
// read subkeys 0, 1 and last
|
|
AS2( movdqa xmm4, [WORD_REG(ax)+WORD_REG(si)]) // last subkey
|
|
AS2( movdqa xmm1, [WORD_REG(dx)]) // subkey 0
|
|
AS2( MOVD MM(1), [WORD_REG(dx)+4*4]) // 0,1,2,3
|
|
AS2( mov ebx, [WORD_REG(dx)+5*4]) // 4,5,6,7
|
|
AS2( mov ecx, [WORD_REG(dx)+6*4]) // 8,9,10,11
|
|
AS2( mov edx, [WORD_REG(dx)+7*4]) // 12,13,14,15
|
|
|
|
// load table into cache
|
|
AS2( xor WORD_REG(ax), WORD_REG(ax))
|
|
ASL(9)
|
|
AS2( mov esi, [AS_REG_7+WORD_REG(ax)])
|
|
AS2( add WORD_REG(ax), WORD_REG(di))
|
|
AS2( mov esi, [AS_REG_7+WORD_REG(ax)])
|
|
AS2( add WORD_REG(ax), WORD_REG(di))
|
|
AS2( mov esi, [AS_REG_7+WORD_REG(ax)])
|
|
AS2( add WORD_REG(ax), WORD_REG(di))
|
|
AS2( mov esi, [AS_REG_7+WORD_REG(ax)])
|
|
AS2( add WORD_REG(ax), WORD_REG(di))
|
|
AS2( cmp WORD_REG(ax), 2048)
|
|
ATT_NOPREFIX
|
|
ASJ( jl, 9, b)
|
|
INTEL_NOPREFIX
|
|
AS1( lfence)
|
|
|
|
AS2( test DWORD PTR [L_LENGTH], 1)
|
|
ATT_NOPREFIX
|
|
ASJ( jz, 8, f)
|
|
INTEL_NOPREFIX
|
|
|
|
// counter mode one-time setup
|
|
AS2( mov WORD_REG(si), [L_INBLOCKS])
|
|
AS2( movdqu xmm2, [WORD_REG(si)]) // counter
|
|
AS2( pxor xmm2, xmm1)
|
|
AS2( psrldq xmm1, 14)
|
|
AS2( movd eax, xmm1)
|
|
AS2( mov al, BYTE PTR [WORD_REG(si)+15])
|
|
AS2( MOVD MM(2), eax)
|
|
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
|
|
AS2( mov eax, 1)
|
|
AS2( movd mm3, eax)
|
|
#endif
|
|
|
|
// partial first round, in: xmm2(15,14,13,12;11,10,9,8;7,6,5,4;3,2,1,0), out: mm1, ebx, ecx, edx
|
|
AS2( movd eax, xmm2)
|
|
AS2( psrldq xmm2, 4)
|
|
AS2( movd edi, xmm2)
|
|
AS2( psrldq xmm2, 4)
|
|
MXOR( 1, al, 0) // 0
|
|
XOR( edx, ah, 1) // 1
|
|
AS2( shr eax, 16)
|
|
XOR( ecx, al, 2) // 2
|
|
XOR( ebx, ah, 3) // 3
|
|
AS2( mov eax, edi)
|
|
AS2( movd edi, xmm2)
|
|
AS2( psrldq xmm2, 4)
|
|
XOR( ebx, al, 0) // 4
|
|
MXOR( 1, ah, 1) // 5
|
|
AS2( shr eax, 16)
|
|
XOR( edx, al, 2) // 6
|
|
XOR( ecx, ah, 3) // 7
|
|
AS2( mov eax, edi)
|
|
AS2( movd edi, xmm2)
|
|
XOR( ecx, al, 0) // 8
|
|
XOR( ebx, ah, 1) // 9
|
|
AS2( shr eax, 16)
|
|
MXOR( 1, al, 2) // 10
|
|
XOR( edx, ah, 3) // 11
|
|
AS2( mov eax, edi)
|
|
XOR( edx, al, 0) // 12
|
|
XOR( ecx, ah, 1) // 13
|
|
AS2( shr eax, 16)
|
|
XOR( ebx, al, 2) // 14
|
|
AS2( psrldq xmm2, 3)
|
|
|
|
// partial second round, in: ebx(4,5,6,7), ecx(8,9,10,11), edx(12,13,14,15), out: eax, ebx, edi, mm0
|
|
AS2( mov eax, [L_KEY12+0*4])
|
|
AS2( mov edi, [L_KEY12+2*4])
|
|
AS2( MOVD MM(0), [L_KEY12+3*4])
|
|
MXOR( 0, cl, 3) /* 11 */
|
|
XOR( edi, bl, 3) /* 7 */
|
|
MXOR( 0, bh, 2) /* 6 */
|
|
AS2( shr ebx, 16) /* 4,5 */
|
|
XOR( eax, bl, 1) /* 5 */
|
|
MOV( ebx, bh, 0) /* 4 */
|
|
AS2( xor ebx, [L_KEY12+1*4])
|
|
XOR( eax, ch, 2) /* 10 */
|
|
AS2( shr ecx, 16) /* 8,9 */
|
|
XOR( eax, dl, 3) /* 15 */
|
|
XOR( ebx, dh, 2) /* 14 */
|
|
AS2( shr edx, 16) /* 12,13 */
|
|
XOR( edi, ch, 0) /* 8 */
|
|
XOR( ebx, cl, 1) /* 9 */
|
|
XOR( edi, dl, 1) /* 13 */
|
|
MXOR( 0, dh, 0) /* 12 */
|
|
|
|
AS2( movd ecx, xmm2)
|
|
AS2( MOVD edx, MM(1))
|
|
AS2( MOVD [L_SAVED_X+3*4], MM(0))
|
|
AS2( mov [L_SAVED_X+0*4], eax)
|
|
AS2( mov [L_SAVED_X+1*4], ebx)
|
|
AS2( mov [L_SAVED_X+2*4], edi)
|
|
ATT_NOPREFIX
|
|
ASJ( jmp, 5, f)
|
|
INTEL_NOPREFIX
|
|
ASL(3)
|
|
// non-counter mode per-block setup
|
|
AS2( MOVD MM(1), [L_KEY12+0*4]) // 0,1,2,3
|
|
AS2( mov ebx, [L_KEY12+1*4]) // 4,5,6,7
|
|
AS2( mov ecx, [L_KEY12+2*4]) // 8,9,10,11
|
|
AS2( mov edx, [L_KEY12+3*4]) // 12,13,14,15
|
|
ASL(8)
|
|
AS2( mov WORD_REG(ax), [L_INBLOCKS])
|
|
AS2( movdqu xmm2, [WORD_REG(ax)])
|
|
AS2( mov WORD_REG(si), [L_INXORBLOCKS])
|
|
AS2( movdqu xmm5, [WORD_REG(si)])
|
|
AS2( pxor xmm2, xmm1)
|
|
AS2( pxor xmm2, xmm5)
|
|
|
|
// first round, in: xmm2(15,14,13,12;11,10,9,8;7,6,5,4;3,2,1,0), out: eax, ebx, ecx, edx
|
|
AS2( movd eax, xmm2)
|
|
AS2( psrldq xmm2, 4)
|
|
AS2( movd edi, xmm2)
|
|
AS2( psrldq xmm2, 4)
|
|
MXOR( 1, al, 0) // 0
|
|
XOR( edx, ah, 1) // 1
|
|
AS2( shr eax, 16)
|
|
XOR( ecx, al, 2) // 2
|
|
XOR( ebx, ah, 3) // 3
|
|
AS2( mov eax, edi)
|
|
AS2( movd edi, xmm2)
|
|
AS2( psrldq xmm2, 4)
|
|
XOR( ebx, al, 0) // 4
|
|
MXOR( 1, ah, 1) // 5
|
|
AS2( shr eax, 16)
|
|
XOR( edx, al, 2) // 6
|
|
XOR( ecx, ah, 3) // 7
|
|
AS2( mov eax, edi)
|
|
AS2( movd edi, xmm2)
|
|
XOR( ecx, al, 0) // 8
|
|
XOR( ebx, ah, 1) // 9
|
|
AS2( shr eax, 16)
|
|
MXOR( 1, al, 2) // 10
|
|
XOR( edx, ah, 3) // 11
|
|
AS2( mov eax, edi)
|
|
XOR( edx, al, 0) // 12
|
|
XOR( ecx, ah, 1) // 13
|
|
AS2( shr eax, 16)
|
|
XOR( ebx, al, 2) // 14
|
|
MXOR( 1, ah, 3) // 15
|
|
AS2( MOVD eax, MM(1))
|
|
|
|
AS2( add L_REG, [L_KEYS_BEGIN])
|
|
AS2( add L_REG, 4*16)
|
|
ATT_NOPREFIX
|
|
ASJ( jmp, 2, f)
|
|
INTEL_NOPREFIX
|
|
ASL(1)
|
|
// counter-mode per-block setup
|
|
AS2( MOVD ecx, MM(2))
|
|
AS2( MOVD edx, MM(1))
|
|
AS2( mov eax, [L_SAVED_X+0*4])
|
|
AS2( mov ebx, [L_SAVED_X+1*4])
|
|
AS2( xor cl, ch)
|
|
AS2( and WORD_REG(cx), 255)
|
|
ASL(5)
|
|
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
|
|
AS2( paddb MM(2), mm3)
|
|
#else
|
|
AS2( add MM(2), 1)
|
|
#endif
|
|
// remaining part of second round, in: edx(previous round),esi(keyed counter byte) eax,ebx,[L_SAVED_X+2*4],[L_SAVED_X+3*4], out: eax,ebx,ecx,edx
|
|
AS2( xor edx, DWORD PTR [AS_REG_7+WORD_REG(cx)*8+3])
|
|
XOR( ebx, dl, 3)
|
|
MOV( ecx, dh, 2)
|
|
AS2( shr edx, 16)
|
|
AS2( xor ecx, [L_SAVED_X+2*4])
|
|
XOR( eax, dh, 0)
|
|
MOV( edx, dl, 1)
|
|
AS2( xor edx, [L_SAVED_X+3*4])
|
|
|
|
AS2( add L_REG, [L_KEYS_BEGIN])
|
|
AS2( add L_REG, 3*16)
|
|
ATT_NOPREFIX
|
|
ASJ( jmp, 4, f)
|
|
INTEL_NOPREFIX
|
|
|
|
// in: eax(0,1,2,3), ebx(4,5,6,7), ecx(8,9,10,11), edx(12,13,14,15)
|
|
// out: eax, ebx, edi, mm0
|
|
#define ROUND() \
|
|
MXOR( 0, cl, 3) /* 11 */\
|
|
AS2( mov cl, al) /* 8,9,10,3 */\
|
|
XOR( edi, ah, 2) /* 2 */\
|
|
AS2( shr eax, 16) /* 0,1 */\
|
|
XOR( edi, bl, 3) /* 7 */\
|
|
MXOR( 0, bh, 2) /* 6 */\
|
|
AS2( shr ebx, 16) /* 4,5 */\
|
|
MXOR( 0, al, 1) /* 1 */\
|
|
MOV( eax, ah, 0) /* 0 */\
|
|
XOR( eax, bl, 1) /* 5 */\
|
|
MOV( ebx, bh, 0) /* 4 */\
|
|
XOR( eax, ch, 2) /* 10 */\
|
|
XOR( ebx, cl, 3) /* 3 */\
|
|
AS2( shr ecx, 16) /* 8,9 */\
|
|
XOR( eax, dl, 3) /* 15 */\
|
|
XOR( ebx, dh, 2) /* 14 */\
|
|
AS2( shr edx, 16) /* 12,13 */\
|
|
XOR( edi, ch, 0) /* 8 */\
|
|
XOR( ebx, cl, 1) /* 9 */\
|
|
XOR( edi, dl, 1) /* 13 */\
|
|
MXOR( 0, dh, 0) /* 12 */\
|
|
|
|
ASL(2) // 2-round loop
|
|
AS2( MOVD MM(0), [L_SUBKEYS-4*16+3*4])
|
|
AS2( mov edi, [L_SUBKEYS-4*16+2*4])
|
|
ROUND()
|
|
AS2( mov ecx, edi)
|
|
AS2( xor eax, [L_SUBKEYS-4*16+0*4])
|
|
AS2( xor ebx, [L_SUBKEYS-4*16+1*4])
|
|
AS2( MOVD edx, MM(0))
|
|
|
|
ASL(4)
|
|
AS2( MOVD MM(0), [L_SUBKEYS-4*16+7*4])
|
|
AS2( mov edi, [L_SUBKEYS-4*16+6*4])
|
|
ROUND()
|
|
AS2( mov ecx, edi)
|
|
AS2( xor eax, [L_SUBKEYS-4*16+4*4])
|
|
AS2( xor ebx, [L_SUBKEYS-4*16+5*4])
|
|
AS2( MOVD edx, MM(0))
|
|
|
|
AS2( add L_REG, 32)
|
|
AS2( test L_REG, 255)
|
|
ATT_NOPREFIX
|
|
ASJ( jnz, 2, b)
|
|
INTEL_NOPREFIX
|
|
AS2( sub L_REG, 16*16)
|
|
|
|
#define LAST(a, b, c) \
|
|
AS2( movzx esi, a )\
|
|
AS2( movzx edi, BYTE PTR [AS_REG_7+WORD_REG(si)*8+1] )\
|
|
AS2( movzx esi, b )\
|
|
AS2( xor edi, DWORD PTR [AS_REG_7+WORD_REG(si)*8+0] )\
|
|
AS2( mov WORD PTR [L_LASTROUND+c], di )\
|
|
|
|
// last round
|
|
LAST(ch, dl, 2)
|
|
LAST(dh, al, 6)
|
|
AS2( shr edx, 16)
|
|
LAST(ah, bl, 10)
|
|
AS2( shr eax, 16)
|
|
LAST(bh, cl, 14)
|
|
AS2( shr ebx, 16)
|
|
LAST(dh, al, 12)
|
|
AS2( shr ecx, 16)
|
|
LAST(ah, bl, 0)
|
|
LAST(bh, cl, 4)
|
|
LAST(ch, dl, 8)
|
|
|
|
AS2( mov WORD_REG(ax), [L_OUTXORBLOCKS])
|
|
AS2( mov WORD_REG(bx), [L_OUTBLOCKS])
|
|
|
|
AS2( mov WORD_REG(cx), [L_LENGTH])
|
|
AS2( sub WORD_REG(cx), 16)
|
|
|
|
AS2( movdqu xmm2, [WORD_REG(ax)])
|
|
AS2( pxor xmm2, xmm4)
|
|
|
|
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
|
|
AS2( movdqa xmm0, [L_INCREMENTS])
|
|
AS2( paddd xmm0, [L_INBLOCKS])
|
|
AS2( movdqa [L_INBLOCKS], xmm0)
|
|
#else
|
|
AS2( movdqa xmm0, [L_INCREMENTS+16])
|
|
AS2( paddq xmm0, [L_INBLOCKS+16])
|
|
AS2( movdqa [L_INBLOCKS+16], xmm0)
|
|
#endif
|
|
|
|
AS2( pxor xmm2, [L_LASTROUND])
|
|
AS2( movdqu [WORD_REG(bx)], xmm2)
|
|
|
|
ATT_NOPREFIX
|
|
ASJ( jle, 7, f)
|
|
INTEL_NOPREFIX
|
|
AS2( mov [L_LENGTH], WORD_REG(cx))
|
|
AS2( test WORD_REG(cx), 1)
|
|
ATT_NOPREFIX
|
|
ASJ( jnz, 1, b)
|
|
INTEL_NOPREFIX
|
|
#if CRYPTOPP_BOOL_X64
|
|
AS2( movdqa xmm0, [L_INCREMENTS])
|
|
AS2( paddq xmm0, [L_INBLOCKS])
|
|
AS2( movdqa [L_INBLOCKS], xmm0)
|
|
#endif
|
|
ATT_NOPREFIX
|
|
ASJ( jmp, 3, b)
|
|
INTEL_NOPREFIX
|
|
|
|
ASL(7)
|
|
// erase keys on stack
|
|
AS2( xorps xmm0, xmm0)
|
|
AS2( lea WORD_REG(ax), [L_SUBKEYS+7*16])
|
|
AS2( movaps [WORD_REG(ax)-7*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)-6*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)-5*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)-4*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)-3*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)-2*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)-1*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)+0*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)+1*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)+2*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)+3*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)+4*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)+5*16], xmm0)
|
|
AS2( movaps [WORD_REG(ax)+6*16], xmm0)
|
|
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
|
|
AS2( mov esp, [L_SP])
|
|
AS1( emms)
|
|
#endif
|
|
AS_POP_IF86(bp)
|
|
AS_POP_IF86(bx)
|
|
#if defined(_MSC_VER) && CRYPTOPP_BOOL_X86
|
|
AS_POP_IF86(di)
|
|
AS_POP_IF86(si)
|
|
AS1(ret)
|
|
#endif
|
|
#ifdef CRYPTOPP_GENERATE_X64_MASM
|
|
pop r12
|
|
pop rbx
|
|
pop rdi
|
|
pop rsi
|
|
ret
|
|
Rijndael_Enc_AdvancedProcessBlocks ENDP
|
|
#endif
|
|
#ifdef __GNUC__
|
|
ATT_PREFIX
|
|
:
|
|
: "c" (locals), "d" (k), "S" (Te), "D" (g_cacheLineSize)
|
|
: "memory", "cc", "%eax"
|
|
#if CRYPTOPP_BOOL_X64
|
|
, "%rbx", "%r8", "%r9", "%r10", "%r11", "%r12"
|
|
#endif
|
|
);
|
|
#endif
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifndef CRYPTOPP_GENERATE_X64_MASM
|
|
|
|
#ifdef CRYPTOPP_X64_MASM_AVAILABLE
|
|
extern "C" {
|
|
void Rijndael_Enc_AdvancedProcessBlocks(void *locals, const word32 *k);
|
|
}
|
|
#endif
|
|
|
|
#if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X86
|
|
|
|
static inline bool AliasedWithTable(const byte *begin, const byte *end)
|
|
{
|
|
size_t s0 = size_t(begin)%4096, s1 = size_t(end)%4096;
|
|
size_t t0 = size_t(Te)%4096, t1 = (size_t(Te)+sizeof(Te))%4096;
|
|
if (t1 > t0)
|
|
return (s0 >= t0 && s0 < t1) || (s1 > t0 && s1 <= t1);
|
|
else
|
|
return (s0 < t1 || s1 <= t1) || (s0 >= t0 || s1 > t0);
|
|
}
|
|
|
|
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
|
|
|
|
inline void AESNI_Enc_Block(__m128i &block, const __m128i *subkeys, unsigned int rounds)
|
|
{
|
|
block = _mm_xor_si128(block, subkeys[0]);
|
|
for (unsigned int i=1; i<rounds-1; i+=2)
|
|
{
|
|
block = _mm_aesenc_si128(block, subkeys[i]);
|
|
block = _mm_aesenc_si128(block, subkeys[i+1]);
|
|
}
|
|
block = _mm_aesenc_si128(block, subkeys[rounds-1]);
|
|
block = _mm_aesenclast_si128(block, subkeys[rounds]);
|
|
}
|
|
|
|
inline void AESNI_Enc_4_Blocks(__m128i &block0, __m128i &block1, __m128i &block2, __m128i &block3, const __m128i *subkeys, unsigned int rounds)
|
|
{
|
|
__m128i rk = subkeys[0];
|
|
block0 = _mm_xor_si128(block0, rk);
|
|
block1 = _mm_xor_si128(block1, rk);
|
|
block2 = _mm_xor_si128(block2, rk);
|
|
block3 = _mm_xor_si128(block3, rk);
|
|
for (unsigned int i=1; i<rounds; i++)
|
|
{
|
|
rk = subkeys[i];
|
|
block0 = _mm_aesenc_si128(block0, rk);
|
|
block1 = _mm_aesenc_si128(block1, rk);
|
|
block2 = _mm_aesenc_si128(block2, rk);
|
|
block3 = _mm_aesenc_si128(block3, rk);
|
|
}
|
|
rk = subkeys[rounds];
|
|
block0 = _mm_aesenclast_si128(block0, rk);
|
|
block1 = _mm_aesenclast_si128(block1, rk);
|
|
block2 = _mm_aesenclast_si128(block2, rk);
|
|
block3 = _mm_aesenclast_si128(block3, rk);
|
|
}
|
|
|
|
inline void AESNI_Dec_Block(__m128i &block, const __m128i *subkeys, unsigned int rounds)
|
|
{
|
|
block = _mm_xor_si128(block, subkeys[0]);
|
|
for (unsigned int i=1; i<rounds-1; i+=2)
|
|
{
|
|
block = _mm_aesdec_si128(block, subkeys[i]);
|
|
block = _mm_aesdec_si128(block, subkeys[i+1]);
|
|
}
|
|
block = _mm_aesdec_si128(block, subkeys[rounds-1]);
|
|
block = _mm_aesdeclast_si128(block, subkeys[rounds]);
|
|
}
|
|
|
|
inline void AESNI_Dec_4_Blocks(__m128i &block0, __m128i &block1, __m128i &block2, __m128i &block3, const __m128i *subkeys, unsigned int rounds)
|
|
{
|
|
__m128i rk = subkeys[0];
|
|
block0 = _mm_xor_si128(block0, rk);
|
|
block1 = _mm_xor_si128(block1, rk);
|
|
block2 = _mm_xor_si128(block2, rk);
|
|
block3 = _mm_xor_si128(block3, rk);
|
|
for (unsigned int i=1; i<rounds; i++)
|
|
{
|
|
rk = subkeys[i];
|
|
block0 = _mm_aesdec_si128(block0, rk);
|
|
block1 = _mm_aesdec_si128(block1, rk);
|
|
block2 = _mm_aesdec_si128(block2, rk);
|
|
block3 = _mm_aesdec_si128(block3, rk);
|
|
}
|
|
rk = subkeys[rounds];
|
|
block0 = _mm_aesdeclast_si128(block0, rk);
|
|
block1 = _mm_aesdeclast_si128(block1, rk);
|
|
block2 = _mm_aesdeclast_si128(block2, rk);
|
|
block3 = _mm_aesdeclast_si128(block3, rk);
|
|
}
|
|
|
|
CRYPTOPP_ALIGN_DATA(16)
|
|
static const word32 s_one[] = {0, 0, 0, 1<<24};
|
|
|
|
template <typename F1, typename F4>
|
|
inline size_t AESNI_AdvancedProcessBlocks(F1 func1, F4 func4, const __m128i *subkeys, unsigned int rounds, const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
|
|
{
|
|
size_t blockSize = 16;
|
|
size_t inIncrement = (flags & (BlockTransformation::BT_InBlockIsCounter|BlockTransformation::BT_DontIncrementInOutPointers)) ? 0 : blockSize;
|
|
size_t xorIncrement = xorBlocks ? blockSize : 0;
|
|
size_t outIncrement = (flags & BlockTransformation::BT_DontIncrementInOutPointers) ? 0 : blockSize;
|
|
|
|
if (flags & BlockTransformation::BT_ReverseDirection)
|
|
{
|
|
assert(length % blockSize == 0);
|
|
inBlocks += length - blockSize;
|
|
xorBlocks += length - blockSize;
|
|
outBlocks += length - blockSize;
|
|
inIncrement = 0-inIncrement;
|
|
xorIncrement = 0-xorIncrement;
|
|
outIncrement = 0-outIncrement;
|
|
}
|
|
|
|
if (flags & BlockTransformation::BT_AllowParallel)
|
|
{
|
|
while (length >= 4*blockSize)
|
|
{
|
|
__m128i block0 = _mm_loadu_si128((const __m128i *)(const void *)inBlocks), block1, block2, block3;
|
|
if (flags & BlockTransformation::BT_InBlockIsCounter)
|
|
{
|
|
const __m128i be1 = *(const __m128i *)(const void *)s_one;
|
|
block1 = _mm_add_epi32(block0, be1);
|
|
block2 = _mm_add_epi32(block1, be1);
|
|
block3 = _mm_add_epi32(block2, be1);
|
|
_mm_storeu_si128((__m128i *)(void *)inBlocks, _mm_add_epi32(block3, be1));
|
|
}
|
|
else
|
|
{
|
|
inBlocks += inIncrement;
|
|
block1 = _mm_loadu_si128((const __m128i *)(const void *)inBlocks);
|
|
inBlocks += inIncrement;
|
|
block2 = _mm_loadu_si128((const __m128i *)(const void *)inBlocks);
|
|
inBlocks += inIncrement;
|
|
block3 = _mm_loadu_si128((const __m128i *)(const void *)inBlocks);
|
|
inBlocks += inIncrement;
|
|
}
|
|
|
|
if (flags & BlockTransformation::BT_XorInput)
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128((const __m128i *)(const void *)xorBlocks));
|
|
xorBlocks += xorIncrement;
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128((const __m128i *)(const void *)xorBlocks));
|
|
xorBlocks += xorIncrement;
|
|
block2 = _mm_xor_si128(block2, _mm_loadu_si128((const __m128i *)(const void *)xorBlocks));
|
|
xorBlocks += xorIncrement;
|
|
block3 = _mm_xor_si128(block3, _mm_loadu_si128((const __m128i *)(const void *)xorBlocks));
|
|
xorBlocks += xorIncrement;
|
|
}
|
|
|
|
func4(block0, block1, block2, block3, subkeys, rounds);
|
|
|
|
if (xorBlocks && !(flags & BlockTransformation::BT_XorInput))
|
|
{
|
|
block0 = _mm_xor_si128(block0, _mm_loadu_si128((const __m128i *)(const void *)xorBlocks));
|
|
xorBlocks += xorIncrement;
|
|
block1 = _mm_xor_si128(block1, _mm_loadu_si128((const __m128i *)(const void *)xorBlocks));
|
|
xorBlocks += xorIncrement;
|
|
block2 = _mm_xor_si128(block2, _mm_loadu_si128((const __m128i *)(const void *)xorBlocks));
|
|
xorBlocks += xorIncrement;
|
|
block3 = _mm_xor_si128(block3, _mm_loadu_si128((const __m128i *)(const void *)xorBlocks));
|
|
xorBlocks += xorIncrement;
|
|
}
|
|
|
|
_mm_storeu_si128((__m128i *)(void *)outBlocks, block0);
|
|
outBlocks += outIncrement;
|
|
_mm_storeu_si128((__m128i *)(void *)outBlocks, block1);
|
|
outBlocks += outIncrement;
|
|
_mm_storeu_si128((__m128i *)(void *)outBlocks, block2);
|
|
outBlocks += outIncrement;
|
|
_mm_storeu_si128((__m128i *)(void *)outBlocks, block3);
|
|
outBlocks += outIncrement;
|
|
|
|
length -= 4*blockSize;
|
|
}
|
|
}
|
|
|
|
while (length >= blockSize)
|
|
{
|
|
__m128i block = _mm_loadu_si128((const __m128i *)(const void *)inBlocks);
|
|
|
|
if (flags & BlockTransformation::BT_XorInput)
|
|
block = _mm_xor_si128(block, _mm_loadu_si128((const __m128i *)(const void *)xorBlocks));
|
|
|
|
if (flags & BlockTransformation::BT_InBlockIsCounter)
|
|
const_cast<byte *>(inBlocks)[15]++;
|
|
|
|
func1(block, subkeys, rounds);
|
|
|
|
if (xorBlocks && !(flags & BlockTransformation::BT_XorInput))
|
|
block = _mm_xor_si128(block, _mm_loadu_si128((const __m128i *)(const void *)xorBlocks));
|
|
|
|
_mm_storeu_si128((__m128i *)(void *)outBlocks, block);
|
|
|
|
inBlocks += inIncrement;
|
|
outBlocks += outIncrement;
|
|
xorBlocks += xorIncrement;
|
|
length -= blockSize;
|
|
}
|
|
|
|
return length;
|
|
}
|
|
#endif
|
|
|
|
size_t Rijndael::Enc::AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const
|
|
{
|
|
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
|
|
if (HasAESNI())
|
|
return AESNI_AdvancedProcessBlocks(AESNI_Enc_Block, AESNI_Enc_4_Blocks, (const __m128i *)(const void *)m_key.begin(), m_rounds, inBlocks, xorBlocks, outBlocks, length, flags);
|
|
#endif
|
|
|
|
#if (CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)) && !defined(CRYPTOPP_DISABLE_RIJNDAEL_ASM)
|
|
if (HasSSE2())
|
|
{
|
|
if (length < BLOCKSIZE)
|
|
return length;
|
|
|
|
struct Locals
|
|
{
|
|
word32 subkeys[4*12], workspace[8];
|
|
const byte *inBlocks, *inXorBlocks, *outXorBlocks;
|
|
byte *outBlocks;
|
|
size_t inIncrement, inXorIncrement, outXorIncrement, outIncrement;
|
|
size_t regSpill, lengthAndCounterFlag, keysBegin;
|
|
};
|
|
|
|
const byte* zeros = (byte *)(Te+256);
|
|
byte *space = NULL;
|
|
|
|
do {
|
|
#if (CRYPTOPP_MSC_VERSION >= 1400)
|
|
// https://msdn.microsoft.com/en-us/library/5471dc8s.aspx
|
|
space = (byte *)_malloca(255+sizeof(Locals));
|
|
space += (256-(size_t)space%256)%256;
|
|
#else
|
|
space = (byte *)alloca(255+sizeof(Locals));
|
|
space += (256-(size_t)space%256)%256;
|
|
#endif
|
|
}
|
|
while (AliasedWithTable(space, space+sizeof(Locals)));
|
|
|
|
size_t increment = BLOCKSIZE;
|
|
if (flags & BT_ReverseDirection)
|
|
{
|
|
assert(length % BLOCKSIZE == 0);
|
|
inBlocks += length - BLOCKSIZE;
|
|
xorBlocks += length - BLOCKSIZE;
|
|
outBlocks += length - BLOCKSIZE;
|
|
increment = 0-increment;
|
|
}
|
|
|
|
Locals &locals = *(Locals *)(void *)space;
|
|
|
|
locals.inBlocks = inBlocks;
|
|
locals.inXorBlocks = (flags & BT_XorInput) && xorBlocks ? xorBlocks : zeros;
|
|
locals.outXorBlocks = (flags & BT_XorInput) || !xorBlocks ? zeros : xorBlocks;
|
|
locals.outBlocks = outBlocks;
|
|
|
|
locals.inIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : increment;
|
|
locals.inXorIncrement = (flags & BT_XorInput) && xorBlocks ? increment : 0;
|
|
locals.outXorIncrement = (flags & BT_XorInput) || !xorBlocks ? 0 : increment;
|
|
locals.outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : increment;
|
|
|
|
locals.lengthAndCounterFlag = length - (length%16) - bool(flags & BT_InBlockIsCounter);
|
|
int keysToCopy = m_rounds - (flags & BT_InBlockIsCounter ? 3 : 2);
|
|
locals.keysBegin = (12-keysToCopy)*16;
|
|
|
|
Rijndael_Enc_AdvancedProcessBlocks(&locals, m_key);
|
|
|
|
#if (CRYPTOPP_MSC_VERSION >= 1400)
|
|
_freea(space);
|
|
#endif
|
|
|
|
return length % BLOCKSIZE;
|
|
}
|
|
#endif
|
|
|
|
return BlockTransformation::AdvancedProcessBlocks(inBlocks, xorBlocks, outBlocks, length, flags);
|
|
}
|
|
|
|
#endif
|
|
|
|
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
|
|
|
|
size_t Rijndael::Dec::AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const
|
|
{
|
|
if (HasAESNI())
|
|
return AESNI_AdvancedProcessBlocks(AESNI_Dec_Block, AESNI_Dec_4_Blocks, (const __m128i *)(const void *)m_key.begin(), m_rounds, inBlocks, xorBlocks, outBlocks, length, flags);
|
|
|
|
return BlockTransformation::AdvancedProcessBlocks(inBlocks, xorBlocks, outBlocks, length, flags);
|
|
}
|
|
|
|
#endif // #if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
|
|
|
|
NAMESPACE_END
|
|
|
|
#endif
|
|
#endif
|