src/block-sha1/sha1.h

   1 /*
   2  * SHA1 routine optimized to do word accesses rather than byte accesses,
   3  * and to avoid unnecessary copies into the context array.
   4  *
   5  * This was initially based on the Mozilla SHA1 implementation, although
   6  * none of the original Mozilla code remains.
   7  */
   8
   9 typedef struct {
  10         unsigned long long size;
  11         unsigned int H[5];
  12         unsigned int W[16];
  13 } blk_SHA_CTX;
  14
  15 void git__blk_SHA1_Init(blk_SHA_CTX *ctx);
  16 void git__blk_SHA1_Update(blk_SHA_CTX *ctx, const void *dataIn, unsigned long len);
  17 void git__blk_SHA1_Final(unsigned char hashout[20], blk_SHA_CTX *ctx);
  18
  19 #define SHA_CTX         blk_SHA_CTX
  20 #define SHA1_Init       git__blk_SHA1_Init
  21 #define SHA1_Update     git__blk_SHA1_Update
  22 #define SHA1_Final      git__blk_SHA1_Final