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/*
* SHA1 routine optimized to do word accesses rather than byte accesses,
* and to avoid unnecessary copies into the context array.
*
* This was initially based on the Mozilla SHA1 implementation, although
* none of the original Mozilla code remains.
*/
typedef struct {
unsigned long long size;
unsigned int H[5];
unsigned int W[16];
} blk_SHA_CTX;
void blk_SHA1_Init(blk_SHA_CTX *ctx);
void blk_SHA1_Update(blk_SHA_CTX *ctx, const void *dataIn, unsigned long len);
void blk_SHA1_Final(unsigned char hashout[20], blk_SHA_CTX *ctx);
/* Make us use the standard names */
#define SHA_CTX blk_SHA_CTX
#define SHA1_Init blk_SHA1_Init
#define SHA1_Update blk_SHA1_Update
#define SHA1_Final blk_SHA1_Final
/* Trivial helper function */
static inline void SHA1(const void *dataIn, unsigned long len, unsigned char hashout[20])
{
SHA_CTX ctx;
SHA1_Init(&ctx);
SHA1_Update(&ctx, dataIn, len);
SHA1_Final(hashout, &ctx);
}
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