[thirdparty/git.git] / block-sha1 / sha1.h

/*
 * 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);

#define git_SHA_CTX	blk_SHA_CTX
#define git_SHA1_Init	blk_SHA1_Init
#define git_SHA1_Update	blk_SHA1_Update
#define git_SHA1_Final	blk_SHA1_Final
Commit	Line	Data
d7c208a9	1	/*
30ae47b4	2	* SHA1 routine optimized to do word accesses rather than byte accesses,
d7c208a9	3	* and to avoid unnecessary copies into the context array.
30ae47b4 NP	4	*
	5	* This was initially based on the Mozilla SHA1 implementation, although
	6	* none of the original Mozilla code remains.
d7c208a9 LT	7	*/
	8
	9	typedef struct {
d5f6a96f	10	unsigned long long size;
d7c208a9 LT	11	unsigned int H[5];
d7c208a9 LT	12	unsigned int W[16];
d7c208a9 LT	13	} blk_SHA_CTX;
	14
	15	void blk_SHA1_Init(blk_SHA_CTX *ctx);
	16	void blk_SHA1_Update(blk_SHA_CTX ctx, const void dataIn, unsigned long len);
	17	void blk_SHA1_Final(unsigned char hashout[20], blk_SHA_CTX *ctx);
	18
	19	#define git_SHA_CTX blk_SHA_CTX
	20	#define git_SHA1_Init blk_SHA1_Init
	21	#define git_SHA1_Update blk_SHA1_Update
	22	#define git_SHA1_Final blk_SHA1_Final