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-rw-r--r--ext/digest/sha2/sha2.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/ext/digest/sha2/sha2.c b/ext/digest/sha2/sha2.c
index ac7f7b5..0566b93 100644
--- a/ext/digest/sha2/sha2.c
+++ b/ext/digest/sha2/sha2.c
@@ -559,7 +559,8 @@ void SHA256_Update(SHA256_CTX* context, const sha2_byte *data, size_t len) {
}
while (len >= SHA256_BLOCK_LENGTH) {
/* Process as many complete blocks as we can */
- SHA256_Transform(context, (sha2_word32*)data);
+ MEMCPY_BCOPY(context->buffer, data, SHA256_BLOCK_LENGTH);
+ SHA256_Transform(context, (sha2_word32*)context->buffer);
context->bitcount += SHA256_BLOCK_LENGTH << 3;
len -= SHA256_BLOCK_LENGTH;
data += SHA256_BLOCK_LENGTH;
@@ -880,7 +881,8 @@ void SHA512_Update(SHA512_CTX* context, const sha2_byte *data, size_t len) {
}
while (len >= SHA512_BLOCK_LENGTH) {
/* Process as many complete blocks as we can */
- SHA512_Transform(context, (sha2_word64*)data);
+ MEMCPY_BCOPY(context->buffer, data, SHA512_BLOCK_LENGTH);
+ SHA512_Transform(context, (sha2_word64*)context->buffer);
ADDINC128(context->bitcount, SHA512_BLOCK_LENGTH << 3);
len -= SHA512_BLOCK_LENGTH;
data += SHA512_BLOCK_LENGTH;