SHA1

Collaboration diagram for SHA1:

Functions
void	sha1_init (struct sha1_state_t *state)
void	sha1_calc (struct sha1_state_t *state, const void *src, int bytelength)
void	sha1_commit (struct sha1_state_t *state, unsigned char *hash)
void	sha1_toHexString (const unsigned char *hash, char *hexstring)

Detailed Description

Function Documentation

void sha1_init

(

struct sha1_state_t *

state

)

Parameters

state

the SHA-1 hasher instance

void sha1_calc	(	struct sha1_state_t *	state,
		const void *	src,
		int	bytelength
	)

Parameters

state	the SHA-1 hasher instance
src	points to any kind of data to be hashed.
bytelength	the number of bytes to hash from the src pointer.

void sha1_commit	(	struct sha1_state_t *	state,
		unsigned char *	hash
	)

Parameters

state	the SHA-1 hasher instance
hash	should point to a buffer of at least 20 bytes of size for storing the sha1 result in.

void sha1_toHexString	(	const unsigned char *	hash,
		char *	hexstring
	)

Parameters

hash	is 20 bytes of sha1 hash. This is the same data that is the result from the calc function.
hexstring	should point to a buffer of at least 41 bytes of size for storing the hexadecimal representation of the hash. A zero will be written at position 40, so the buffer will be a valid zero ended string.