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Use aligned loads for Rijndael subkeys on PPC64

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This commit is contained in:
Jeffrey Walton 2020-04-06 01:08:23 -04:00
parent 1a89320f0b
commit 1dd75891a1
No known key found for this signature in database
GPG Key ID: B36AB348921B1838
1 changed files with 16 additions and 16 deletions
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32
rijndael_simd.cpp
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@ -558,17 +558,17 @@ static inline void POWER8_Enc_Block(uint32x4_p &block, const word32 *subkeys, un
CRYPTOPP_ASSERT(IsAlignedOn(subkeys, 16));
const byte *keys = reinterpret_cast<const byte*>(subkeys);
uint32x4_p k = VecLoad(keys);
uint32x4_p k = VecLoadAligned(keys);
block = VecXor(block, k);
for (size_t i=1; i<rounds-1; i+=2)
{
block = VecEncrypt(block, VecLoad( i*16, keys));
block = VecEncrypt(block, VecLoad((i+1)*16, keys));
block = VecEncrypt(block, VecLoadAligned( i*16, keys));
block = VecEncrypt(block, VecLoadAligned((i+1)*16, keys));
}
block = VecEncrypt(block, VecLoad((rounds-1)*16, keys));
block = VecEncryptLast(block, VecLoad(rounds*16, keys));
block = VecEncrypt(block, VecLoadAligned((rounds-1)*16, keys));
block = VecEncryptLast(block, VecLoadAligned(rounds*16, keys));
}
static inline void POWER8_Enc_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
@ -578,7 +578,7 @@ static inline void POWER8_Enc_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
CRYPTOPP_ASSERT(IsAlignedOn(subkeys, 16));
const byte *keys = reinterpret_cast<const byte*>(subkeys);
uint32x4_p k = VecLoad(keys);
uint32x4_p k = VecLoadAligned(keys);
block0 = VecXor(block0, k);
block1 = VecXor(block1, k);
block2 = VecXor(block2, k);
@ -588,7 +588,7 @@ static inline void POWER8_Enc_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
for (size_t i=1; i<rounds; ++i)
{
k = VecLoad(i*16, keys);
k = VecLoadAligned(i*16, keys);
block0 = VecEncrypt(block0, k);
block1 = VecEncrypt(block1, k);
block2 = VecEncrypt(block2, k);
@ -597,7 +597,7 @@ static inline void POWER8_Enc_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
block5 = VecEncrypt(block5, k);
}
k = VecLoad(rounds*16, keys);
k = VecLoadAligned(rounds*16, keys);
block0 = VecEncryptLast(block0, k);
block1 = VecEncryptLast(block1, k);
block2 = VecEncryptLast(block2, k);
@ -611,17 +611,17 @@ static inline void POWER8_Dec_Block(uint32x4_p &block, const word32 *subkeys, un
CRYPTOPP_ASSERT(IsAlignedOn(subkeys, 16));
const byte *keys = reinterpret_cast<const byte*>(subkeys);
uint32x4_p k = VecLoad(rounds*16, keys);
uint32x4_p k = VecLoadAligned(rounds*16, keys);
block = VecXor(block, k);
for (size_t i=rounds-1; i>1; i-=2)
{
block = VecDecrypt(block, VecLoad( i*16, keys));
block = VecDecrypt(block, VecLoad((i-1)*16, keys));
block = VecDecrypt(block, VecLoadAligned( i*16, keys));
block = VecDecrypt(block, VecLoadAligned((i-1)*16, keys));
}
block = VecDecrypt(block, VecLoad(16, keys));
block = VecDecryptLast(block, VecLoad(0, keys));
block = VecDecrypt(block, VecLoadAligned(16, keys));
block = VecDecryptLast(block, VecLoadAligned(0, keys));
}
static inline void POWER8_Dec_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
@ -631,7 +631,7 @@ static inline void POWER8_Dec_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
CRYPTOPP_ASSERT(IsAlignedOn(subkeys, 16));
const byte *keys = reinterpret_cast<const byte*>(subkeys);
uint32x4_p k = VecLoad(rounds*16, keys);
uint32x4_p k = VecLoadAligned(rounds*16, keys);
block0 = VecXor(block0, k);
block1 = VecXor(block1, k);
block2 = VecXor(block2, k);
@ -641,7 +641,7 @@ static inline void POWER8_Dec_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
for (size_t i=rounds-1; i>0; --i)
{
k = VecLoad(i*16, keys);
k = VecLoadAligned(i*16, keys);
block0 = VecDecrypt(block0, k);
block1 = VecDecrypt(block1, k);
block2 = VecDecrypt(block2, k);
@ -650,7 +650,7 @@ static inline void POWER8_Dec_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
block5 = VecDecrypt(block5, k);
}
k = VecLoad(0, keys);
k = VecLoadAligned(0, keys);
block0 = VecDecryptLast(block0, k);
block1 = VecDecryptLast(block1, k);
block2 = VecDecryptLast(block2, k);