forked from wolfSSL/wolfssl
Merge pull request #593 from JacobBarthelmeh/ARMv8
ARMv8 : sanity checks
This commit is contained in:
toddouska
GitHub
@ -120,7 +120,6 @@
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#include <sys/syscall.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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#include <unistd.h>
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#define HAVE_GET_CYCLES
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static word64 begin_cycles;
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static word64 begin_cycles;
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static word64 total_cycles;
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static word64 total_cycles;
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static int cycles = -1;
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static int cycles = -1;
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@ -2534,7 +2533,7 @@ void bench_ed25519KeySign(void)
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#endif /* _WIN32 */
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#endif /* _WIN32 */
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#ifdef HAVE_GET_CYCLES
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#if defined(HAVE_GET_CYCLES)
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static INLINE word64 get_intel_cycles(void)
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static INLINE word64 get_intel_cycles(void)
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{
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{
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@ -2511,10 +2511,10 @@ int wc_AesGcmEncrypt(Aes* aes, byte* out, const byte* in, word32 sz,
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{
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{
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/* sanity checks */
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/* sanity checks */
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if (aes == NULL || (iv == NULL && ivSz > 0) ||
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if (aes == NULL || (iv == NULL && ivSz > 0) ||
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(authTag == NULL && authTagSz > 0) ||
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(authTag == NULL) ||
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(authIn == NULL && authInSz > 0) ||
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(authIn == NULL) ||
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(in == NULL && sz > 0) ||
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(in == NULL && sz > 0) ||
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(out == NULL && authTag == NULL)) {
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(out == NULL && sz > 0)) {
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WOLFSSL_MSG("a NULL parameter passed in when size is larger than 0");
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WOLFSSL_MSG("a NULL parameter passed in when size is larger than 0");
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return BAD_FUNC_ARG;
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return BAD_FUNC_ARG;
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}
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}
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@ -2571,10 +2571,10 @@ int wc_AesGcmDecrypt(Aes* aes, byte* out, const byte* in, word32 sz,
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/* sanity checks */
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/* sanity checks */
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if (aes == NULL || (iv == NULL && ivSz > 0) ||
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if (aes == NULL || (iv == NULL && ivSz > 0) ||
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(authTag == NULL && authTagSz > 0) ||
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(authTag == NULL) ||
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(authIn == NULL && authInSz > 0) ||
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(authIn == NULL) ||
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(in == NULL && sz > 0) ||
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(in == NULL && sz > 0) ||
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(out == NULL && authTag == NULL)) {
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(out == NULL && sz > 0)) {
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WOLFSSL_MSG("a NULL parameter passed in when size is larger than 0");
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WOLFSSL_MSG("a NULL parameter passed in when size is larger than 0");
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return BAD_FUNC_ARG;
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return BAD_FUNC_ARG;
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}
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}
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@ -2827,6 +2827,12 @@ int wc_AesGcmDecrypt(Aes* aes, byte* out, const byte* in, word32 sz,
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if (partial != 0) {
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if (partial != 0) {
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IncrementGcmCounter(ctr);
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IncrementGcmCounter(ctr);
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wc_AesEncrypt(aes, ctr, scratch);
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wc_AesEncrypt(aes, ctr, scratch);
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/* check if pointer is null after main AES-GCM blocks
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* helps static analysis */
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if (p == NULL || c == NULL) {
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return BAD_STATE_E;
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}
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xorbuf(scratch, c, partial);
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xorbuf(scratch, c, partial);
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XMEMCPY(p, scratch, partial);
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XMEMCPY(p, scratch, partial);
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}
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}
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@ -4157,10 +4163,10 @@ int wc_AesGcmEncrypt(Aes* aes, byte* out, const byte* in, word32 sz,
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/* sanity checks */
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/* sanity checks */
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if (aes == NULL || (iv == NULL && ivSz > 0) ||
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if (aes == NULL || (iv == NULL && ivSz > 0) ||
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(authTag == NULL && authTagSz > 0) ||
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(authTag == NULL) ||
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(authIn == NULL && authInSz > 0) ||
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(authIn == NULL) ||
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(in == NULL && sz > 0) ||
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(in == NULL && sz > 0) ||
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(out == NULL && authTag == NULL)) {
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(out == NULL && sz > 0)) {
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WOLFSSL_MSG("a NULL parameter passed in when size is larger than 0");
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WOLFSSL_MSG("a NULL parameter passed in when size is larger than 0");
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return BAD_FUNC_ARG;
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return BAD_FUNC_ARG;
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}
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}
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@ -4234,6 +4240,16 @@ int wc_AesGcmDecrypt(Aes* aes, byte* out, const byte* in, word32 sz,
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byte scratch[AES_BLOCK_SIZE];
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byte scratch[AES_BLOCK_SIZE];
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ctr = counter ;
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ctr = counter ;
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/* sanity checks */
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if (aes == NULL || (iv == NULL && ivSz > 0) ||
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(authTag == NULL) ||
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(authIn == NULL) ||
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(in == NULL && sz > 0) ||
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(out == NULL && sz > 0)) {
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WOLFSSL_MSG("a NULL parameter passed in when size is larger than 0");
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return BAD_FUNC_ARG;
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}
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XMEMSET(initialCounter, 0, AES_BLOCK_SIZE);
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XMEMSET(initialCounter, 0, AES_BLOCK_SIZE);
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if (ivSz == NONCE_SZ) {
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if (ivSz == NONCE_SZ) {
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XMEMCPY(initialCounter, iv, ivSz);
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XMEMCPY(initialCounter, iv, ivSz);
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@ -4270,6 +4286,12 @@ int wc_AesGcmDecrypt(Aes* aes, byte* out, const byte* in, word32 sz,
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if (partial != 0) {
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if (partial != 0) {
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IncrementGcmCounter(ctr);
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IncrementGcmCounter(ctr);
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wc_AesEncrypt(aes, ctr, scratch);
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wc_AesEncrypt(aes, ctr, scratch);
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/* check if pointer is null after main AES-GCM blocks
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* helps static analysis */
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if (p == NULL || c == NULL) {
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return BAD_STATE_E;
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}
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xorbuf(scratch, c, partial);
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xorbuf(scratch, c, partial);
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XMEMCPY(p, scratch, partial);
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XMEMCPY(p, scratch, partial);
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}
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}
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@ -80,6 +80,10 @@ int wc_InitSha256(Sha256* sha256)
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{
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{
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int ret = 0;
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int ret = 0;
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if (sha256 == NULL) {
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return BAD_FUNC_ARG;
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}
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sha256->digest[0] = 0x6A09E667L;
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sha256->digest[0] = 0x6A09E667L;
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sha256->digest[1] = 0xBB67AE85L;
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sha256->digest[1] = 0xBB67AE85L;
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sha256->digest[2] = 0x3C6EF372L;
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sha256->digest[2] = 0x3C6EF372L;
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@ -116,199 +120,206 @@ int wc_Sha256Update(Sha256* sha256, const byte* data, word32 len)
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return BAD_FUNC_ARG;
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return BAD_FUNC_ARG;
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}
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}
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/* fill leftover buffer with data */
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/* only perform actions if a buffer is passed in */
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add = min(len, SHA256_BLOCK_SIZE - sha256->buffLen);
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if (len > 0) {
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XMEMCPY((byte*)(sha256->buffer) + sha256->buffLen, data, add);
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/* fill leftover buffer with data */
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sha256->buffLen += add;
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add = min(len, SHA256_BLOCK_SIZE - sha256->buffLen);
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data += add;
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XMEMCPY((byte*)(sha256->buffer) + sha256->buffLen, data, add);
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len -= add;
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sha256->buffLen += add;
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data += add;
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len -= add;
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/* number of blocks in a row to complete */
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/* number of blocks in a row to complete */
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numBlocks = (len + sha256->buffLen)/SHA256_BLOCK_SIZE;
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numBlocks = (len + sha256->buffLen)/SHA256_BLOCK_SIZE;
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if (numBlocks > 0) {
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if (numBlocks > 0) {
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/* get leftover amount after blocks */
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/* get leftover amount after blocks */
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add = (len + sha256->buffLen) - numBlocks * SHA256_BLOCK_SIZE;
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add = (len + sha256->buffLen) - numBlocks * SHA256_BLOCK_SIZE;
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__asm__ volatile (
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__asm__ volatile (
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"#load leftover data\n"
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"#load leftover data\n"
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"LD1 {v0.2d-v3.2d}, %[buffer] \n"
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"LD1 {v0.2d-v3.2d}, %[buffer] \n"
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"#load current digest\n"
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"#load current digest\n"
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"LD1 {v12.2d-v13.2d}, %[digest] \n"
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"LD1 {v12.2d-v13.2d}, %[digest] \n"
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"MOV w8, %w[blocks] \n"
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"MOV w8, %w[blocks] \n"
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"REV32 v0.16b, v0.16b \n"
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"REV32 v0.16b, v0.16b \n"
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"REV32 v1.16b, v1.16b \n"
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"REV32 v1.16b, v1.16b \n"
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"REV32 v2.16b, v2.16b \n"
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"REV32 v2.16b, v2.16b \n"
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"REV32 v3.16b, v3.16b \n"
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"REV32 v3.16b, v3.16b \n"
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"#load K values in \n"
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"#load K values in \n"
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"LD1 {v16.4s-v19.4s}, [%[k]], #64 \n"
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"LD1 {v16.4s-v19.4s}, [%[k]], #64 \n"
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"LD1 {v20.4s-v23.4s}, [%[k]], #64 \n"
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"LD1 {v20.4s-v23.4s}, [%[k]], #64 \n"
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"MOV v14.16b, v12.16b \n" /* store digest for add at the end */
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"MOV v14.16b, v12.16b \n" /* store digest for add at the end */
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"MOV v15.16b, v13.16b \n"
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"MOV v15.16b, v13.16b \n"
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"LD1 {v24.4s-v27.4s}, [%[k]], #64 \n"
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"LD1 {v24.4s-v27.4s}, [%[k]], #64 \n"
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"LD1 {v28.4s-v31.4s}, [%[k]], #64 \n"
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"LD1 {v28.4s-v31.4s}, [%[k]], #64 \n"
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/* begining of SHA256 block operation */
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/* begining of SHA256 block operation */
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"sha256Start:\n"
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"sha256Start:\n"
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/* Round 1 */
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/* Round 1 */
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"MOV v4.16b, v0.16b \n"
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"MOV v4.16b, v0.16b \n"
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"ADD v0.4s, v0.4s, v16.4s \n"
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"ADD v0.4s, v0.4s, v16.4s \n"
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"MOV v11.16b, v12.16b \n"
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"MOV v11.16b, v12.16b \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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/* Round 2 */
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/* Round 2 */
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"SHA256SU0 v4.4s, v1.4s \n"
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"SHA256SU0 v4.4s, v1.4s \n"
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"ADD v0.4s, v1.4s, v17.4s \n"
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"ADD v0.4s, v1.4s, v17.4s \n"
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"MOV v11.16b, v12.16b \n"
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"MOV v11.16b, v12.16b \n"
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"SHA256SU1 v4.4s, v2.4s, v3.4s \n"
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"SHA256SU1 v4.4s, v2.4s, v3.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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/* Round 3 */
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/* Round 3 */
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"SHA256SU0 v1.4s, v2.4s \n"
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"SHA256SU0 v1.4s, v2.4s \n"
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"ADD v0.4s, v2.4s, v18.4s \n"
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"ADD v0.4s, v2.4s, v18.4s \n"
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"MOV v11.16b, v12.16b \n"
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"MOV v11.16b, v12.16b \n"
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"SHA256SU1 v1.4s, v3.4s, v4.4s \n"
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"SHA256SU1 v1.4s, v3.4s, v4.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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/* Round 4 */
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/* Round 4 */
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"SHA256SU0 v2.4s, v3.4s \n"
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"SHA256SU0 v2.4s, v3.4s \n"
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"ADD v0.4s, v3.4s, v19.4s \n"
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"ADD v0.4s, v3.4s, v19.4s \n"
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"MOV v11.16b, v12.16b \n"
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"MOV v11.16b, v12.16b \n"
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"SHA256SU1 v2.4s, v4.4s, v1.4s \n"
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"SHA256SU1 v2.4s, v4.4s, v1.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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/* Round 5 */
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/* Round 5 */
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"SHA256SU0 v3.4s, v4.4s \n"
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"SHA256SU0 v3.4s, v4.4s \n"
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"ADD v0.4s, v4.4s, v20.4s \n"
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"ADD v0.4s, v4.4s, v20.4s \n"
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"MOV v11.16b, v12.16b \n"
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"MOV v11.16b, v12.16b \n"
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"SHA256SU1 v3.4s, v1.4s, v2.4s \n"
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"SHA256SU1 v3.4s, v1.4s, v2.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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/* Round 6 */
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/* Round 6 */
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"SHA256SU0 v4.4s, v1.4s \n"
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"SHA256SU0 v4.4s, v1.4s \n"
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"ADD v0.4s, v1.4s, v21.4s \n"
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"ADD v0.4s, v1.4s, v21.4s \n"
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"MOV v11.16b, v12.16b \n"
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"MOV v11.16b, v12.16b \n"
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"SHA256SU1 v4.4s, v2.4s, v3.4s \n"
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"SHA256SU1 v4.4s, v2.4s, v3.4s \n"
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||||||
"SHA256H q12, q13, v0.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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/* Round 7 */
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/* Round 7 */
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"SHA256SU0 v1.4s, v2.4s \n"
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"SHA256SU0 v1.4s, v2.4s \n"
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"ADD v0.4s, v2.4s, v22.4s \n"
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"ADD v0.4s, v2.4s, v22.4s \n"
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||||||
"MOV v11.16b, v12.16b \n"
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"MOV v11.16b, v12.16b \n"
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||||||
"SHA256SU1 v1.4s, v3.4s, v4.4s \n"
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"SHA256SU1 v1.4s, v3.4s, v4.4s \n"
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||||||
"SHA256H q12, q13, v0.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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||||||
"SHA256H2 q13, q11, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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|
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/* Round 8 */
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/* Round 8 */
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||||||
"SHA256SU0 v2.4s, v3.4s \n"
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"SHA256SU0 v2.4s, v3.4s \n"
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||||||
"ADD v0.4s, v3.4s, v23.4s \n"
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"ADD v0.4s, v3.4s, v23.4s \n"
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||||||
"MOV v11.16b, v12.16b \n"
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"MOV v11.16b, v12.16b \n"
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||||||
"SHA256SU1 v2.4s, v4.4s, v1.4s \n"
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"SHA256SU1 v2.4s, v4.4s, v1.4s \n"
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||||||
"SHA256H q12, q13, v0.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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||||||
"SHA256H2 q13, q11, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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/* Round 9 */
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/* Round 9 */
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||||||
"SHA256SU0 v3.4s, v4.4s \n"
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"SHA256SU0 v3.4s, v4.4s \n"
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||||||
"ADD v0.4s, v4.4s, v24.4s \n"
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"ADD v0.4s, v4.4s, v24.4s \n"
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||||||
"MOV v11.16b, v12.16b \n"
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"MOV v11.16b, v12.16b \n"
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||||||
"SHA256SU1 v3.4s, v1.4s, v2.4s \n"
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"SHA256SU1 v3.4s, v1.4s, v2.4s \n"
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||||||
"SHA256H q12, q13, v0.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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||||||
"SHA256H2 q13, q11, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
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||||||
|
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||||||
/* Round 10 */
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/* Round 10 */
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||||||
"SHA256SU0 v4.4s, v1.4s \n"
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"SHA256SU0 v4.4s, v1.4s \n"
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||||||
"ADD v0.4s, v1.4s, v25.4s \n"
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"ADD v0.4s, v1.4s, v25.4s \n"
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||||||
"MOV v11.16b, v12.16b \n"
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"MOV v11.16b, v12.16b \n"
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||||||
"SHA256SU1 v4.4s, v2.4s, v3.4s \n"
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"SHA256SU1 v4.4s, v2.4s, v3.4s \n"
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||||||
"SHA256H q12, q13, v0.4s \n"
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"SHA256H q12, q13, v0.4s \n"
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||||||
"SHA256H2 q13, q11, v0.4s \n"
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"SHA256H2 q13, q11, v0.4s \n"
|
||||||
|
|
||||||
/* Round 11 */
|
/* Round 11 */
|
||||||
"SHA256SU0 v1.4s, v2.4s \n"
|
"SHA256SU0 v1.4s, v2.4s \n"
|
||||||
"ADD v0.4s, v2.4s, v26.4s \n"
|
"ADD v0.4s, v2.4s, v26.4s \n"
|
||||||
"MOV v11.16b, v12.16b \n"
|
"MOV v11.16b, v12.16b \n"
|
||||||
"SHA256SU1 v1.4s, v3.4s, v4.4s \n"
|
"SHA256SU1 v1.4s, v3.4s, v4.4s \n"
|
||||||
"SHA256H q12, q13, v0.4s \n"
|
"SHA256H q12, q13, v0.4s \n"
|
||||||
"SHA256H2 q13, q11, v0.4s \n"
|
"SHA256H2 q13, q11, v0.4s \n"
|
||||||
|
|
||||||
/* Round 12 */
|
/* Round 12 */
|
||||||
"SHA256SU0 v2.4s, v3.4s \n"
|
"SHA256SU0 v2.4s, v3.4s \n"
|
||||||
"ADD v0.4s, v3.4s, v27.4s \n"
|
"ADD v0.4s, v3.4s, v27.4s \n"
|
||||||
"MOV v11.16b, v12.16b \n"
|
"MOV v11.16b, v12.16b \n"
|
||||||
"SHA256SU1 v2.4s, v4.4s, v1.4s \n"
|
"SHA256SU1 v2.4s, v4.4s, v1.4s \n"
|
||||||
"SHA256H q12, q13, v0.4s \n"
|
"SHA256H q12, q13, v0.4s \n"
|
||||||
"SHA256H2 q13, q11, v0.4s \n"
|
"SHA256H2 q13, q11, v0.4s \n"
|
||||||
|
|
||||||
/* Round 13 */
|
/* Round 13 */
|
||||||
"SHA256SU0 v3.4s, v4.4s \n"
|
"SHA256SU0 v3.4s, v4.4s \n"
|
||||||
"ADD v0.4s, v4.4s, v28.4s \n"
|
"ADD v0.4s, v4.4s, v28.4s \n"
|
||||||
"MOV v11.16b, v12.16b \n"
|
"MOV v11.16b, v12.16b \n"
|
||||||
"SHA256SU1 v3.4s, v1.4s, v2.4s \n"
|
"SHA256SU1 v3.4s, v1.4s, v2.4s \n"
|
||||||
"SHA256H q12, q13, v0.4s \n"
|
"SHA256H q12, q13, v0.4s \n"
|
||||||
"SHA256H2 q13, q11, v0.4s \n"
|
"SHA256H2 q13, q11, v0.4s \n"
|
||||||
|
|
||||||
/* Round 14 */
|
/* Round 14 */
|
||||||
"ADD v0.4s, v1.4s, v29.4s \n"
|
"ADD v0.4s, v1.4s, v29.4s \n"
|
||||||
"MOV v11.16b, v12.16b \n"
|
"MOV v11.16b, v12.16b \n"
|
||||||
"SHA256H q12, q13, v0.4s \n"
|
"SHA256H q12, q13, v0.4s \n"
|
||||||
"SHA256H2 q13, q11, v0.4s \n"
|
"SHA256H2 q13, q11, v0.4s \n"
|
||||||
|
|
||||||
/* Round 15 */
|
/* Round 15 */
|
||||||
"ADD v0.4s, v2.4s, v30.4s \n"
|
"ADD v0.4s, v2.4s, v30.4s \n"
|
||||||
"MOV v11.16b, v12.16b \n"
|
"MOV v11.16b, v12.16b \n"
|
||||||
"SHA256H q12, q13, v0.4s \n"
|
"SHA256H q12, q13, v0.4s \n"
|
||||||
"SHA256H2 q13, q11, v0.4s \n"
|
"SHA256H2 q13, q11, v0.4s \n"
|
||||||
|
|
||||||
/* Round 16 */
|
/* Round 16 */
|
||||||
"ADD v0.4s, v3.4s, v31.4s \n"
|
"ADD v0.4s, v3.4s, v31.4s \n"
|
||||||
"MOV v11.16b, v12.16b \n"
|
"MOV v11.16b, v12.16b \n"
|
||||||
"SHA256H q12, q13, v0.4s \n"
|
"SHA256H q12, q13, v0.4s \n"
|
||||||
"SHA256H2 q13, q11, v0.4s \n"
|
"SHA256H2 q13, q11, v0.4s \n"
|
||||||
|
|
||||||
"#Add working vars back into digest state \n"
|
"#Add working vars back into digest state \n"
|
||||||
"SUB w8, w8, #1 \n"
|
"SUB w8, w8, #1 \n"
|
||||||
"ADD v12.4s, v12.4s, v14.4s \n"
|
"ADD v12.4s, v12.4s, v14.4s \n"
|
||||||
"ADD v13.4s, v13.4s, v15.4s \n"
|
"ADD v13.4s, v13.4s, v15.4s \n"
|
||||||
|
|
||||||
"#check if more blocks should be done\n"
|
"#check if more blocks should be done\n"
|
||||||
"CBZ w8, sha256End \n"
|
"CBZ w8, sha256End \n"
|
||||||
|
|
||||||
"#load in message and schedual updates \n"
|
"#load in message and schedual updates \n"
|
||||||
"LD1 {v0.2d-v3.2d}, [%[dataIn]], #64 \n"
|
"LD1 {v0.2d-v3.2d}, [%[dataIn]], #64 \n"
|
||||||
"MOV v14.16b, v12.16b \n"
|
"MOV v14.16b, v12.16b \n"
|
||||||
"MOV v15.16b, v13.16b \n"
|
"MOV v15.16b, v13.16b \n"
|
||||||
"REV32 v0.16b, v0.16b \n"
|
"REV32 v0.16b, v0.16b \n"
|
||||||
"REV32 v1.16b, v1.16b \n"
|
"REV32 v1.16b, v1.16b \n"
|
||||||
"REV32 v2.16b, v2.16b \n"
|
"REV32 v2.16b, v2.16b \n"
|
||||||
"REV32 v3.16b, v3.16b \n"
|
"REV32 v3.16b, v3.16b \n"
|
||||||
"B sha256Start \n" /* do another block */
|
"B sha256Start \n" /* do another block */
|
||||||
|
|
||||||
"sha256End:\n"
|
"sha256End:\n"
|
||||||
"STP q12, q13, %[out] \n"
|
"STP q12, q13, %[out] \n"
|
||||||
|
|
||||||
: [out] "=m" (sha256->digest), "=m" (sha256->buffer), "=r" (numBlocks),
|
: [out] "=m" (sha256->digest), "=m" (sha256->buffer), "=r" (numBlocks),
|
||||||
"=r" (data)
|
"=r" (data)
|
||||||
: [k] "r" (K), [digest] "m" (sha256->digest), [buffer] "m" (sha256->buffer),
|
: [k] "r" (K), [digest] "m" (sha256->digest), [buffer] "m" (sha256->buffer),
|
||||||
[blocks] "2" (numBlocks), [dataIn] "3" (data)
|
[blocks] "2" (numBlocks), [dataIn] "3" (data)
|
||||||
: "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
|
: "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
|
||||||
"v8", "v9", "v10", "v11", "v12", "v13", "v14",
|
"v8", "v9", "v10", "v11", "v12", "v13", "v14",
|
||||||
"v15", "w8"
|
"v15", "w8"
|
||||||
);
|
);
|
||||||
|
|
||||||
AddLength(sha256, SHA256_BLOCK_SIZE * numBlocks);
|
AddLength(sha256, SHA256_BLOCK_SIZE * numBlocks);
|
||||||
|
|
||||||
/* copy over any remaining data leftover */
|
/* copy over any remaining data leftover */
|
||||||
XMEMCPY(sha256->buffer, data, add);
|
XMEMCPY(sha256->buffer, data, add);
|
||||||
sha256->buffLen = add;
|
sha256->buffLen = add;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/* account for possiblity of not used if len = 0 */
|
||||||
|
(void)add;
|
||||||
|
(void)numBlocks;
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -672,217 +683,224 @@ int wc_Sha256Update(Sha256* sha256, const byte* data, word32 len)
|
|||||||
return BAD_FUNC_ARG;
|
return BAD_FUNC_ARG;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* fill leftover buffer with data */
|
/* only perform actions if a buffer is passed in */
|
||||||
add = min(len, SHA256_BLOCK_SIZE - sha256->buffLen);
|
if (len > 0) {
|
||||||
XMEMCPY((byte*)(sha256->buffer) + sha256->buffLen, data, add);
|
/* fill leftover buffer with data */
|
||||||
sha256->buffLen += add;
|
add = min(len, SHA256_BLOCK_SIZE - sha256->buffLen);
|
||||||
data += add;
|
XMEMCPY((byte*)(sha256->buffer) + sha256->buffLen, data, add);
|
||||||
len -= add;
|
sha256->buffLen += add;
|
||||||
|
data += add;
|
||||||
|
len -= add;
|
||||||
|
|
||||||
/* number of blocks in a row to complete */
|
/* number of blocks in a row to complete */
|
||||||
numBlocks = (len + sha256->buffLen)/SHA256_BLOCK_SIZE;
|
numBlocks = (len + sha256->buffLen)/SHA256_BLOCK_SIZE;
|
||||||
|
|
||||||
if (numBlocks > 0) {
|
if (numBlocks > 0) {
|
||||||
word32* bufPt = sha256->buffer;
|
word32* bufPt = sha256->buffer;
|
||||||
word32* digPt = sha256->digest;
|
word32* digPt = sha256->digest;
|
||||||
/* get leftover amount after blocks */
|
/* get leftover amount after blocks */
|
||||||
add = (len + sha256->buffLen) - numBlocks * SHA256_BLOCK_SIZE;
|
add = (len + sha256->buffLen) - numBlocks * SHA256_BLOCK_SIZE;
|
||||||
__asm__ volatile (
|
__asm__ volatile (
|
||||||
"#load leftover data\n"
|
"#load leftover data\n"
|
||||||
"VLDM %[buffer]!, {q0-q3} \n"
|
"VLDM %[buffer]!, {q0-q3} \n"
|
||||||
|
|
||||||
"#load current digest\n"
|
"#load current digest\n"
|
||||||
"VLDM %[digest], {q12-q13} \n"
|
"VLDM %[digest], {q12-q13} \n"
|
||||||
"MOV r8, %r[blocks] \n"
|
"MOV r8, %r[blocks] \n"
|
||||||
"VREV32.8 q0, q0 \n"
|
"VREV32.8 q0, q0 \n"
|
||||||
"VREV32.8 q1, q1 \n"
|
"VREV32.8 q1, q1 \n"
|
||||||
"VREV32.8 q2, q2 \n"
|
"VREV32.8 q2, q2 \n"
|
||||||
"VREV32.8 q3, q3 \n"
|
"VREV32.8 q3, q3 \n"
|
||||||
"VLDM %[k]! ,{q5-q8} \n"
|
"VLDM %[k]! ,{q5-q8} \n"
|
||||||
"VLDM %[k]! ,{q9}\n"
|
"VLDM %[k]! ,{q9}\n"
|
||||||
|
|
||||||
"VMOV.32 q14, q12 \n" /* store digest for add at the end */
|
"VMOV.32 q14, q12 \n" /* store digest for add at the end */
|
||||||
"VMOV.32 q15, q13 \n"
|
"VMOV.32 q15, q13 \n"
|
||||||
|
|
||||||
/* begining of SHA256 block operation */
|
/* begining of SHA256 block operation */
|
||||||
"sha256Start:\n"
|
"sha256Start:\n"
|
||||||
|
|
||||||
/* Round 1 */
|
/* Round 1 */
|
||||||
"VMOV.32 q4, q0 \n"
|
"VMOV.32 q4, q0 \n"
|
||||||
"VADD.i32 q0, q0, q5 \n"
|
"VADD.i32 q0, q0, q5 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 2 */
|
/* Round 2 */
|
||||||
"SHA256SU0.32 q4, q1 \n"
|
"SHA256SU0.32 q4, q1 \n"
|
||||||
"VADD.i32 q0, q1, q6 \n"
|
"VADD.i32 q0, q1, q6 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q4, q2, q3 \n"
|
"SHA256SU1.32 q4, q2, q3 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 3 */
|
/* Round 3 */
|
||||||
"SHA256SU0.32 q1, q2 \n"
|
"SHA256SU0.32 q1, q2 \n"
|
||||||
"VADD.i32 q0, q2, q7 \n"
|
"VADD.i32 q0, q2, q7 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q1, q3, q4 \n"
|
"SHA256SU1.32 q1, q3, q4 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 4 */
|
/* Round 4 */
|
||||||
"SHA256SU0.32 q2, q3 \n"
|
"SHA256SU0.32 q2, q3 \n"
|
||||||
"VADD.i32 q0, q3, q8 \n"
|
"VADD.i32 q0, q3, q8 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q2, q4, q1 \n"
|
"SHA256SU1.32 q2, q4, q1 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 5 */
|
/* Round 5 */
|
||||||
"SHA256SU0.32 q3, q4 \n"
|
"SHA256SU0.32 q3, q4 \n"
|
||||||
"VADD.i32 q0, q4, q9 \n"
|
"VADD.i32 q0, q4, q9 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q3, q1, q2 \n"
|
"SHA256SU1.32 q3, q1, q2 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 6 */
|
/* Round 6 */
|
||||||
"VLD1.32 {q10}, [%[k]]! \n"
|
"VLD1.32 {q10}, [%[k]]! \n"
|
||||||
"SHA256SU0.32 q4, q1 \n"
|
"SHA256SU0.32 q4, q1 \n"
|
||||||
"VADD.i32 q0, q1, q10 \n"
|
"VADD.i32 q0, q1, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q4, q2, q3 \n"
|
"SHA256SU1.32 q4, q2, q3 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 7 */
|
/* Round 7 */
|
||||||
"VLD1.32 {q10}, [%[k]]! \n"
|
"VLD1.32 {q10}, [%[k]]! \n"
|
||||||
"SHA256SU0.32 q1, q2 \n"
|
"SHA256SU0.32 q1, q2 \n"
|
||||||
"VADD.i32 q0, q2, q10 \n"
|
"VADD.i32 q0, q2, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q1, q3, q4 \n"
|
"SHA256SU1.32 q1, q3, q4 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 8 */
|
/* Round 8 */
|
||||||
"VLD1.32 {q10}, [%[k]]! \n"
|
"VLD1.32 {q10}, [%[k]]! \n"
|
||||||
"SHA256SU0.32 q2, q3 \n"
|
"SHA256SU0.32 q2, q3 \n"
|
||||||
"VADD.i32 q0, q3, q10 \n"
|
"VADD.i32 q0, q3, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q2, q4, q1 \n"
|
"SHA256SU1.32 q2, q4, q1 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 9 */
|
/* Round 9 */
|
||||||
"VLD1.32 {q10}, [%[k]]! \n"
|
"VLD1.32 {q10}, [%[k]]! \n"
|
||||||
"SHA256SU0.32 q3, q4 \n"
|
"SHA256SU0.32 q3, q4 \n"
|
||||||
"VADD.i32 q0, q4, q10 \n"
|
"VADD.i32 q0, q4, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q3, q1, q2 \n"
|
"SHA256SU1.32 q3, q1, q2 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 10 */
|
/* Round 10 */
|
||||||
"VLD1.32 {q10}, [%[k]]! \n"
|
"VLD1.32 {q10}, [%[k]]! \n"
|
||||||
"SHA256SU0.32 q4, q1 \n"
|
"SHA256SU0.32 q4, q1 \n"
|
||||||
"VADD.i32 q0, q1, q10 \n"
|
"VADD.i32 q0, q1, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q4, q2, q3 \n"
|
"SHA256SU1.32 q4, q2, q3 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 11 */
|
/* Round 11 */
|
||||||
"VLD1.32 {q10}, [%[k]]! \n"
|
"VLD1.32 {q10}, [%[k]]! \n"
|
||||||
"SHA256SU0.32 q1, q2 \n"
|
"SHA256SU0.32 q1, q2 \n"
|
||||||
"VADD.i32 q0, q2, q10 \n"
|
"VADD.i32 q0, q2, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q1, q3, q4 \n"
|
"SHA256SU1.32 q1, q3, q4 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 12 */
|
/* Round 12 */
|
||||||
"VLD1.32 {q10}, [%[k]]! \n"
|
"VLD1.32 {q10}, [%[k]]! \n"
|
||||||
"SHA256SU0.32 q2, q3 \n"
|
"SHA256SU0.32 q2, q3 \n"
|
||||||
"VADD.i32 q0, q3, q10 \n"
|
"VADD.i32 q0, q3, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q2, q4, q1 \n"
|
"SHA256SU1.32 q2, q4, q1 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 13 */
|
/* Round 13 */
|
||||||
"VLD1.32 {q10}, [%[k]]! \n"
|
"VLD1.32 {q10}, [%[k]]! \n"
|
||||||
"SHA256SU0.32 q3, q4 \n"
|
"SHA256SU0.32 q3, q4 \n"
|
||||||
"VADD.i32 q0, q4, q10 \n"
|
"VADD.i32 q0, q4, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256SU1.32 q3, q1, q2 \n"
|
"SHA256SU1.32 q3, q1, q2 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 14 */
|
/* Round 14 */
|
||||||
"VLD1.32 {q10}, [%[k]]! \n"
|
"VLD1.32 {q10}, [%[k]]! \n"
|
||||||
"VADD.i32 q0, q1, q10 \n"
|
"VADD.i32 q0, q1, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 15 */
|
/* Round 15 */
|
||||||
"VLD1.32 {q10}, [%[k]]! \n"
|
"VLD1.32 {q10}, [%[k]]! \n"
|
||||||
"VADD.i32 q0, q2, q10 \n"
|
"VADD.i32 q0, q2, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
/* Round 16 */
|
/* Round 16 */
|
||||||
"VLD1.32 {q10}, [%[k]] \n"
|
"VLD1.32 {q10}, [%[k]] \n"
|
||||||
"SUB r8, r8, #1 \n"
|
"SUB r8, r8, #1 \n"
|
||||||
"VADD.i32 q0, q3, q10 \n"
|
"VADD.i32 q0, q3, q10 \n"
|
||||||
"VMOV.32 q11, q12 \n"
|
"VMOV.32 q11, q12 \n"
|
||||||
"SHA256H.32 q12, q13, q0 \n"
|
"SHA256H.32 q12, q13, q0 \n"
|
||||||
"SHA256H2.32 q13, q11, q0 \n"
|
"SHA256H2.32 q13, q11, q0 \n"
|
||||||
|
|
||||||
"#Add working vars back into digest state \n"
|
"#Add working vars back into digest state \n"
|
||||||
"VADD.i32 q12, q12, q14 \n"
|
"VADD.i32 q12, q12, q14 \n"
|
||||||
"VADD.i32 q13, q13, q15 \n"
|
"VADD.i32 q13, q13, q15 \n"
|
||||||
|
|
||||||
"#check if more blocks should be done\n"
|
"#check if more blocks should be done\n"
|
||||||
"CMP r8, #0 \n"
|
"CMP r8, #0 \n"
|
||||||
"BEQ sha256End \n"
|
"BEQ sha256End \n"
|
||||||
|
|
||||||
"#load in message and schedual updates \n"
|
"#load in message and schedual updates \n"
|
||||||
"VLD1.32 {q0}, [%[dataIn]]! \n"
|
"VLD1.32 {q0}, [%[dataIn]]! \n"
|
||||||
"VLD1.32 {q1}, [%[dataIn]]! \n"
|
"VLD1.32 {q1}, [%[dataIn]]! \n"
|
||||||
"VLD1.32 {q2}, [%[dataIn]]! \n"
|
"VLD1.32 {q2}, [%[dataIn]]! \n"
|
||||||
"VLD1.32 {q3}, [%[dataIn]]! \n"
|
"VLD1.32 {q3}, [%[dataIn]]! \n"
|
||||||
|
|
||||||
/* reset K pointer */
|
/* reset K pointer */
|
||||||
"SUB %[k], %[k], #160 \n"
|
"SUB %[k], %[k], #160 \n"
|
||||||
"VREV32.8 q0, q0 \n"
|
"VREV32.8 q0, q0 \n"
|
||||||
"VREV32.8 q1, q1 \n"
|
"VREV32.8 q1, q1 \n"
|
||||||
"VREV32.8 q2, q2 \n"
|
"VREV32.8 q2, q2 \n"
|
||||||
"VREV32.8 q3, q3 \n"
|
"VREV32.8 q3, q3 \n"
|
||||||
"VMOV.32 q14, q12 \n"
|
"VMOV.32 q14, q12 \n"
|
||||||
"VMOV.32 q15, q13 \n"
|
"VMOV.32 q15, q13 \n"
|
||||||
"B sha256Start \n" /* do another block */
|
"B sha256Start \n" /* do another block */
|
||||||
|
|
||||||
"sha256End:\n"
|
"sha256End:\n"
|
||||||
"VST1.32 {q12, q13}, [%[out]] \n"
|
"VST1.32 {q12, q13}, [%[out]] \n"
|
||||||
|
|
||||||
: [out] "=r" (digPt), "=r" (bufPt), "=r" (numBlocks),
|
: [out] "=r" (digPt), "=r" (bufPt), "=r" (numBlocks),
|
||||||
"=r" (data)
|
"=r" (data)
|
||||||
: [k] "r" (K), [digest] "0" (digPt), [buffer] "1" (bufPt),
|
: [k] "r" (K), [digest] "0" (digPt), [buffer] "1" (bufPt),
|
||||||
[blocks] "2" (numBlocks), [dataIn] "3" (data)
|
[blocks] "2" (numBlocks), [dataIn] "3" (data)
|
||||||
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
|
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
|
||||||
"q8", "q9", "q10", "q11", "q12", "q13", "q14",
|
"q8", "q9", "q10", "q11", "q12", "q13", "q14",
|
||||||
"q15", "r8"
|
"q15", "r8"
|
||||||
);
|
);
|
||||||
|
|
||||||
AddLength(sha256, SHA256_BLOCK_SIZE * numBlocks);
|
AddLength(sha256, SHA256_BLOCK_SIZE * numBlocks);
|
||||||
|
|
||||||
/* copy over any remaining data leftover */
|
/* copy over any remaining data leftover */
|
||||||
XMEMCPY(sha256->buffer, data, add);
|
XMEMCPY(sha256->buffer, data, add);
|
||||||
sha256->buffLen = add;
|
sha256->buffLen = add;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/* account for possiblity of not used if len = 0 */
|
||||||
|
(void)add;
|
||||||
|
(void)numBlocks;
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
Reference in New Issue
Block a user