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Add CRYPTOPP_POWER5_AVAILABLE 

Power4 lacks 'vector long long'
Rename datatypes such as 'uint8x16_p8' to 'uint8x16_p'. Originally the p8 suffix indicated use with Power8 in-core crypto. We are now using Altivec/Power4 for general vector operations.
pull/548/head
Jeffrey Walton 2017-12-12 08:17:17 -05:00
parent ca54d0c7da
commit 2c79be7a54
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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@ -558,14 +558,14 @@ static const uint32_t s_mask[4] = {
#endif #endif
}; };
static inline uint8x16_p8 static inline uint8x16_p
Rijndael_Subkey_POWER8(uint8x16_p8 r1, const uint8x16_p8 r4, const uint8x16_p8 r5) Rijndael_Subkey_POWER8(uint8x16_p r1, const uint8x16_p r4, const uint8x16_p r5)
{ {
// Big endian: vec_sld(a, b, c) // Big endian: vec_sld(a, b, c)
// Little endian: vec_sld(b, a, 16-c) // Little endian: vec_sld(b, a, 16-c)
const uint8x16_p8 r0 = {0}; const uint8x16_p r0 = {0};
uint8x16_p8 r3, r6; uint8x16_p r3, r6;
r3 = VectorPermute(r1, r1, r5); /* line 1 */ r3 = VectorPermute(r1, r1, r5); /* line 1 */
r6 = VectorShiftLeft<12>(r0, r1); /* line 2 */ r6 = VectorShiftLeft<12>(r0, r1); /* line 2 */
@ -586,7 +586,7 @@ Rijndael_Subkey_POWER8(uint8x16_p8 r1, const uint8x16_p8 r4, const uint8x16_p8 r
} }
static inline uint8_t* static inline uint8_t*
IncrementPointerAndStore(const uint8x16_p8& r, uint8_t* p) IncrementPointerAndStore(const uint8x16_p& r, uint8_t* p)
{ {
VectorStore(r, (p += 16)); VectorStore(r, (p += 16));
return p; return p;
@ -727,9 +727,9 @@ size_t Rijndael_AdvancedProcessBlocks_POWER8(F1 func1, F6 func6, const word32 *s
while (length >= 6*blockSize) while (length >= 6*blockSize)
{ {
#if defined(CRYPTOPP_LITTLE_ENDIAN) #if defined(CRYPTOPP_LITTLE_ENDIAN)
const VectorType one = (VectorType)((uint64x2_p8){1,0}); const VectorType one = (VectorType)((uint64x2_p){1,0});
#else #else
const VectorType one = (VectorType)((uint64x2_p8){0,1}); const VectorType one = (VectorType)((uint64x2_p){0,1});
#endif #endif
VectorType block0, block1, block2, block3, block4, block5, temp; VectorType block0, block1, block2, block3, block4, block5, temp;
@ -834,9 +834,9 @@ void Rijndael_UncheckedSetKey_POWER8(const byte* userKey, size_t keyLen, word32*
std::memcpy(rk, userKey, keyLen); std::memcpy(rk, userKey, keyLen);
uint8_t* skptr = (uint8_t*)rk; uint8_t* skptr = (uint8_t*)rk;
uint8x16_p8 r1 = (uint8x16_p8)VectorLoadKey(skptr); uint8x16_p r1 = (uint8x16_p)VectorLoadKey(skptr);
uint8x16_p8 r4 = (uint8x16_p8)VectorLoadKey(s_rcon[0]); uint8x16_p r4 = (uint8x16_p)VectorLoadKey(s_rcon[0]);
uint8x16_p8 r5 = (uint8x16_p8)VectorLoadKey(s_mask); uint8x16_p r5 = (uint8x16_p)VectorLoadKey(s_mask);
#if defined(CRYPTOPP_LITTLE_ENDIAN) #if defined(CRYPTOPP_LITTLE_ENDIAN)
// Only the user key requires byte reversing. // Only the user key requires byte reversing.
@ -852,12 +852,12 @@ void Rijndael_UncheckedSetKey_POWER8(const byte* userKey, size_t keyLen, word32*
} }
/* Round 9 using rcon=0x1b */ /* Round 9 using rcon=0x1b */
r4 = (uint8x16_p8)VectorLoadKey(s_rcon[1]); r4 = (uint8x16_p)VectorLoadKey(s_rcon[1]);
r1 = Rijndael_Subkey_POWER8(r1, r4, r5); r1 = Rijndael_Subkey_POWER8(r1, r4, r5);
skptr = IncrementPointerAndStore(r1, skptr); skptr = IncrementPointerAndStore(r1, skptr);
/* Round 10 using rcon=0x36 */ /* Round 10 using rcon=0x36 */
r4 = (uint8x16_p8)VectorLoadKey(s_rcon[2]); r4 = (uint8x16_p)VectorLoadKey(s_rcon[2]);
r1 = Rijndael_Subkey_POWER8(r1, r4, r5); r1 = Rijndael_Subkey_POWER8(r1, r4, r5);
skptr = IncrementPointerAndStore(r1, skptr); skptr = IncrementPointerAndStore(r1, skptr);
} }
@ -901,14 +901,14 @@ void Rijndael_UncheckedSetKey_POWER8(const byte* userKey, size_t keyLen, word32*
#if defined(CRYPTOPP_LITTLE_ENDIAN) #if defined(CRYPTOPP_LITTLE_ENDIAN)
rk = rk_saved; rk = rk_saved;
const uint8x16_p8 mask = ((uint8x16_p8){12,13,14,15, 8,9,10,11, 4,5,6,7, 0,1,2,3}); const uint8x16_p mask = ((uint8x16_p){12,13,14,15, 8,9,10,11, 4,5,6,7, 0,1,2,3});
const uint8x16_p8 zero = {0}; const uint8x16_p zero = {0};
unsigned int i=0; unsigned int i=0;
for (i=0; i<rounds; i+=2, rk+=8) for (i=0; i<rounds; i+=2, rk+=8)
{ {
uint8x16_p8 d1 = vec_vsx_ld( 0, (uint8_t*)rk); uint8x16_p d1 = vec_vsx_ld( 0, (uint8_t*)rk);
uint8x16_p8 d2 = vec_vsx_ld(16, (uint8_t*)rk); uint8x16_p d2 = vec_vsx_ld(16, (uint8_t*)rk);
d1 = vec_perm(d1, zero, mask); d1 = vec_perm(d1, zero, mask);
d2 = vec_perm(d2, zero, mask); d2 = vec_perm(d2, zero, mask);
vec_vsx_st(d1, 0, (uint8_t*)rk); vec_vsx_st(d1, 0, (uint8_t*)rk);