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Merge pull request #3903 from SparkiDev/sha2_arm

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ARMv8 SHA256, SHA512: Add wc_Sha256Transform, wc_Sha512Transform
This commit is contained in:
toddouska
2021-03-23 14:46:45 -07:00
committed by GitHub
parent 1643bec05f 089ebf277f
commit d539dc59be
2 changed files with 407 additions and 364 deletions
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112
wolfcrypt/src/port/arm/armv8-sha256.c
View File

@ -96,29 +96,12 @@ static WC_INLINE void AddLength(wc_Sha256* sha256, word32 len)
#ifdef __aarch64__
/* ARMv8 hardware acceleration */
static WC_INLINE int Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
/* First block is in sha256->buffer and rest in data. */
static WC_INLINE void Sha256Transform(wc_Sha256* sha256, const byte* data,
word32 numBlocks)
{
word32 add;
word32 numBlocks;
/* only perform actions if a buffer is passed in */
if (len > 0) {
/* fill leftover buffer with data */
add = min(len, WC_SHA256_BLOCK_SIZE - sha256->buffLen);
XMEMCPY((byte*)(sha256->buffer) + sha256->buffLen, data, add);
sha256->buffLen += add;
data += add;
len -= add;
/* number of blocks in a row to complete */
numBlocks = (len + sha256->buffLen)/WC_SHA256_BLOCK_SIZE;
if (numBlocks > 0) {
word32* k = (word32*)K;
/* get leftover amount after blocks */
add = (len + sha256->buffLen) - numBlocks * WC_SHA256_BLOCK_SIZE;
__asm__ volatile (
"#load leftover data\n"
"LD1 {v0.2d-v3.2d}, %[buffer] \n"
@ -293,6 +276,31 @@ static WC_INLINE int Sha256Update(wc_Sha256* sha256, const byte* data, word32 le
"v22", "v23", "v24", "v25", "v26", "v27", "v28",
"v29", "v30", "v31", "w8"
);
}
/* ARMv8 hardware acceleration */
static WC_INLINE int Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
{
word32 add;
word32 numBlocks;
/* only perform actions if a buffer is passed in */
if (len > 0) {
/* fill leftover buffer with data */
add = min(len, WC_SHA256_BLOCK_SIZE - sha256->buffLen);
XMEMCPY((byte*)(sha256->buffer) + sha256->buffLen, data, add);
sha256->buffLen += add;
data += add;
len -= add;
/* number of blocks in a row to complete */
numBlocks = (len + sha256->buffLen)/WC_SHA256_BLOCK_SIZE;
if (numBlocks > 0) {
/* get leftover amount after blocks */
add = (len + sha256->buffLen) - numBlocks * WC_SHA256_BLOCK_SIZE;
Sha256Transform(sha256, data, numBlocks);
AddLength(sha256, WC_SHA256_BLOCK_SIZE * numBlocks);
@ -658,29 +666,12 @@ static WC_INLINE int Sha256Final(wc_Sha256* sha256, byte* hash)
#else /* not using 64 bit */
/* ARMv8 hardware acceleration Aarch32 */
static WC_INLINE int Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
static WC_INLINE void Sha256Transform(wc_Sha256* sha256, const byte* data,
word32 numBlocks)
{
word32 add;
word32 numBlocks;
/* only perform actions if a buffer is passed in */
if (len > 0) {
/* fill leftover buffer with data */
add = min(len, WC_SHA256_BLOCK_SIZE - sha256->buffLen);
XMEMCPY((byte*)(sha256->buffer) + sha256->buffLen, data, add);
sha256->buffLen += add;
data += add;
len -= add;
/* number of blocks in a row to complete */
numBlocks = (len + sha256->buffLen)/WC_SHA256_BLOCK_SIZE;
if (numBlocks > 0) {
word32* bufPt = sha256->buffer;
word32* digPt = sha256->digest;
/* get leftover amount after blocks */
add = (len + sha256->buffLen) - numBlocks * WC_SHA256_BLOCK_SIZE;
__asm__ volatile (
"#load leftover data\n"
"VLDM %[buffer]!, {q0-q3} \n"
@ -869,6 +860,31 @@ static WC_INLINE int Sha256Update(wc_Sha256* sha256, const byte* data, word32 le
"q8", "q9", "q10", "q11", "q12", "q13", "q14",
"q15", "r8"
);
}
/* ARMv8 hardware acceleration Aarch32 */
static WC_INLINE int Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
{
word32 add;
word32 numBlocks;
/* only perform actions if a buffer is passed in */
if (len > 0) {
/* fill leftover buffer with data */
add = min(len, WC_SHA256_BLOCK_SIZE - sha256->buffLen);
XMEMCPY((byte*)(sha256->buffer) + sha256->buffLen, data, add);
sha256->buffLen += add;
data += add;
len -= add;
/* number of blocks in a row to complete */
numBlocks = (len + sha256->buffLen)/WC_SHA256_BLOCK_SIZE;
if (numBlocks > 0) {
/* get leftover amount after blocks */
add = (len + sha256->buffLen) - numBlocks * WC_SHA256_BLOCK_SIZE;
Sha256Transform(sha256, data, numBlocks);
AddLength(sha256, WC_SHA256_BLOCK_SIZE * numBlocks);
@ -1401,6 +1417,22 @@ int wc_Sha256Copy(wc_Sha256* src, wc_Sha256* dst)
return ret;
}
#ifdef OPENSSL_EXTRA
int wc_Sha256Transform(wc_Sha256* sha256, const unsigned char* data)
{
if (sha256 == NULL || data == NULL) {
return BAD_FUNC_ARG;
}
#ifdef LITTLE_ENDIAN_ORDER
ByteReverseWords(sha256->buffer, (word32*)data, WC_SHA256_BLOCK_SIZE);
#else
XMEMCPY(sha256->buffer, data, WC_SHA256_BLOCK_SIZE);
#endif
Sha256Transform(sha256, data, 1);
return 0;
}
#endif
#endif /* !NO_SHA256 */

11
wolfcrypt/src/port/arm/armv8-sha512.c
View File

@ -483,6 +483,17 @@ void wc_Sha512Free(wc_Sha512* sha512)
#endif
}
#ifdef OPENSSL_EXTRA
int wc_Sha512Transform(wc_Sha512* sha512, const unsigned char* data)
{
if (sha512 == NULL || data == NULL) {
return BAD_FUNC_ARG;
}
Transform_Sha512_Len(sha512, data, WC_SHA512_BLOCK_SIZE);
return 0;
}
#endif
#endif /* WOLFSSL_SHA512 */
/* -------------------------------------------------------------------------- */