SHA1.c File Reference

#include "SHA1.h"
#include <string.h>

Include dependency graph for SHA1.c:

Go to the source code of this file.

Macros
#define	ROTATE_LEFT32(a, n)   (((a) << (n)) | ((a) >> (32 - (n))))

Functions
int	SHA1_Final (unsigned char *md, SHA_CTX *ctx)
int	SHA1_Init (SHA_CTX *ctx)
static void	SHA1_ProcessBlock (SHA_CTX *ctx)
int	SHA1_Update (SHA_CTX *ctx, const void *data, size_t len)

Variables
static unsigned char	pad [64]

Macro Definition Documentation

#define ROTATE_LEFT32	(		a,
			n
	)		(((a) << (n)) | ((a) >> (32 - (n))))

Definition at line 94 of file SHA1.c.

Function Documentation

int SHA1_Final	(	unsigned char *	md,
		SHA_CTX *	ctx
	)

Produce final SHA1 hash

Parameters

[out]	md	SHA1 hash produced (must be atleast SHA1_DIGEST_LENGTH in length)
[in,out]	ctx	hashing context structure

See also

SHA1_Init

SHA1_Final

Definition at line 139 of file SHA1.c.

int SHA1_Init

(

SHA_CTX *

ctx

)

Initializes the SHA1 hashing algorithm

Parameters

[in,out]

ctx

hashing context structure

See also

SHA1_Update

SHA1_Final

Definition at line 77 of file SHA1.c.

static void SHA1_ProcessBlock ( SHA_CTX *  ctx )

static

Definition at line 95 of file SHA1.c.

int SHA1_Update	(	SHA_CTX *	ctx,
		const void *	data,
		size_t	len
	)

Updates a block to the SHA1 hash

Parameters

[in,out]	ctx	hashing context structure
[in]	data	block of data to hash
[in]	len	length of block to hash

See also

SHA1_Init

SHA1_Final

Definition at line 173 of file SHA1.c.

Variable Documentation

unsigned char pad[64]

static

Initial value:

= {
        0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
}

Definition at line 66 of file SHA1.c.