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Patch to support NXP Kinetis MMCAU SHA2-256 (FREESCALE_MMCAU_CLASSIC_SHA) with --enable-armasm.

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This commit is contained in:
David Garske
2023-11-29 09:08:11 -08:00
parent 0c9555b29e
commit 8a5a467543
1 changed files with 71 additions and 2 deletions
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73
wolfcrypt/src/port/arm/armv8-sha256.c
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@ -44,6 +44,13 @@
#include <wolfcrypt/src/misc.c>
#endif
#if defined(FREESCALE_MMCAU_SHA)
#ifdef FREESCALE_MMCAU_CLASSIC_SHA
#include "cau_api.h"
#else
#include "fsl_mmcau.h"
#endif
#endif
#ifndef WOLFSSL_ARMASM_NO_HW_CRYPTO
static const ALIGN32 word32 K[64] = {
@ -72,6 +79,17 @@ static int InitSha256(wc_Sha256* sha256)
return BAD_FUNC_ARG;
}
#ifdef FREESCALE_MMCAU_SHA
ret = wolfSSL_CryptHwMutexLock();
if (ret == 0) {
#ifdef FREESCALE_MMCAU_CLASSIC_SHA
cau_sha256_initialize_output(sha256->digest);
#else
MMCAU_SHA256_InitializeOutput((uint32_t*)sha256->digest);
#endif
wolfSSL_CryptHwMutexUnLock();
}
#else
sha256->digest[0] = 0x6A09E667L;
sha256->digest[1] = 0xBB67AE85L;
sha256->digest[2] = 0x3C6EF372L;
@ -80,6 +98,7 @@ static int InitSha256(wc_Sha256* sha256)
sha256->digest[5] = 0x9B05688CL;
sha256->digest[6] = 0x1F83D9ABL;
sha256->digest[7] = 0x5BE0CD19L;
#endif
sha256->buffLen = 0;
sha256->loLen = 0;
@ -1317,11 +1336,59 @@ static WC_INLINE int Sha256Final(wc_Sha256* sha256, byte* hash)
#endif /* __aarch64__ */
#else
#else /* WOLFSSL_ARMASM_NO_HW_CRYPTO */
#if defined(FREESCALE_MMCAU_SHA)
#ifndef WC_HASH_DATA_ALIGNMENT
/* these hardware API's require 4 byte (word32) alignment */
#define WC_HASH_DATA_ALIGNMENT 4
#endif
static int Transform_Sha256_Len(wc_Sha256* sha256, const byte* data,
word32 len)
{
int ret = wolfSSL_CryptHwMutexLock();
if (ret == 0) {
#if defined(WC_HASH_DATA_ALIGNMENT) && WC_HASH_DATA_ALIGNMENT > 0
if ((wc_ptr_t)data % WC_HASH_DATA_ALIGNMENT) {
/* data pointer is NOT aligned,
* so copy and perform one block at a time */
byte* local = (byte*)sha256->buffer;
while (len >= WC_SHA256_BLOCK_SIZE) {
XMEMCPY(local, data, WC_SHA256_BLOCK_SIZE);
#ifdef FREESCALE_MMCAU_CLASSIC_SHA
cau_sha256_hash_n(local, 1, sha256->digest);
#else
MMCAU_SHA256_HashN(local, 1, (uint32_t*)sha256->digest);
#endif
data += WC_SHA256_BLOCK_SIZE;
len -= WC_SHA256_BLOCK_SIZE;
}
}
else
#endif
{
#ifdef FREESCALE_MMCAU_CLASSIC_SHA
cau_sha256_hash_n((byte*)data, len/WC_SHA256_BLOCK_SIZE,
sha256->digest);
#else
MMCAU_SHA256_HashN((byte*)data, len/WC_SHA256_BLOCK_SIZE,
(uint32_t*)sha256->digest);
#endif
}
wolfSSL_CryptHwMutexUnLock();
}
return ret;
}
#else /* */
extern void Transform_Sha256_Len(wc_Sha256* sha256, const byte* data,
word32 len);
#endif
/* ARMv8 hardware acceleration Aarch32 and Thumb2 */
static WC_INLINE int Sha256Update(wc_Sha256* sha256, const byte* data, word32 len)
{
@ -1429,7 +1496,9 @@ int wc_InitSha256_ex(wc_Sha256* sha256, void* heap, int devId)
return BAD_FUNC_ARG;
sha256->heap = heap;
(void)devId;
#ifdef WOLF_CRYPTO_CB
sha256->devId = devId;
#endif
return InitSha256(sha256);
}