sha1.h File Reference

Calculation of SHA-1 digest. More...

#include "mhd_options.h"
#include <stdint.h>

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Data Structures
struct	sha1_ctx

Macros
#define	_SHA1_DIGEST_LENGTH   5
#define	SHA1_WORD_SIZE_BITS   32
#define	SHA1_BYTES_IN_WORD   (SHA1_WORD_SIZE_BITS / 8)
#define	SHA1_DIGEST_SIZE   (_SHA1_DIGEST_LENGTH * SHA1_BYTES_IN_WORD)
#define	SHA1_DIGEST_STRING_SIZE   ((SHA1_DIGEST_SIZE) * 2 + 1)
#define	SHA1_BLOCK_SIZE_BITS   512
#define	SHA1_BLOCK_SIZE   (SHA1_BLOCK_SIZE_BITS / 8)

Functions
void	MHD_SHA1_init (void *ctx_)
void	MHD_SHA1_update (void *ctx_, const uint8_t *data, size_t length)
void	MHD_SHA1_finish (void *ctx_, uint8_t digest[SHA1_DIGEST_SIZE])

Detailed Description

Calculation of SHA-1 digest.

Author

Karlson2k (Evgeny Grin)

Definition in file sha1.h.

Macro Definition Documentation

_SHA1_DIGEST_LENGTH

#define _SHA1_DIGEST_LENGTH   5

SHA-1 digest is kept internally as 5 32-bit words.

Definition at line 38 of file sha1.h.

Referenced by MHD_SHA1_finish(), and sha1_transform().

SHA1_BLOCK_SIZE

#define SHA1_BLOCK_SIZE   (SHA1_BLOCK_SIZE_BITS / 8)

Size of single processing block in bytes

Definition at line 68 of file sha1.h.

Referenced by MHD_SHA1_finish(), MHD_SHA1_update(), and sha1_transform().

SHA1_BLOCK_SIZE_BITS

#define SHA1_BLOCK_SIZE_BITS   512

Size of single processing block in bits

Definition at line 63 of file sha1.h.

SHA1_BYTES_IN_WORD

#define SHA1_BYTES_IN_WORD   (SHA1_WORD_SIZE_BITS / 8)

Number of bytes in single SHA-1 word

Definition at line 48 of file sha1.h.

Referenced by MHD_SHA1_finish().

SHA1_DIGEST_SIZE

#define SHA1_DIGEST_SIZE   (_SHA1_DIGEST_LENGTH * SHA1_BYTES_IN_WORD)

Size of SHA-1 digest in bytes

Definition at line 53 of file sha1.h.

Referenced by MHD_SHA1_finish().

SHA1_DIGEST_STRING_SIZE

#define SHA1_DIGEST_STRING_SIZE   ((SHA1_DIGEST_SIZE) * 2 + 1)

Size of SHA-1 digest string in chars including termination NUL

Definition at line 58 of file sha1.h.

SHA1_WORD_SIZE_BITS

#define SHA1_WORD_SIZE_BITS   32

Number of bits in single SHA-1 word

Definition at line 43 of file sha1.h.

Function Documentation

MHD_SHA1_finish()

void MHD_SHA1_finish	(	void *	ctx_,
		uint8_t	digest[SHA1_DIGEST_SIZE] )

Finalise SHA-1 calculation, return digest.

Parameters

	ctx_	must be a struct sha1_ctx *
[out]	digest	set to the hash, must be SHA1_DIGEST_SIZE bytes

< Number of processed bits

< Number of bytes in buffer

Definition at line 314 of file sha1.c.

References _MHD_PUT_32BIT_BE, _MHD_PUT_64BIT_BE_SAFE(), _MHD_UINT32_ALIGN, _SHA1_DIGEST_LENGTH, sha1_ctx::buffer, sha1_ctx::count, sha1_ctx::H, SHA1_BLOCK_SIZE, SHA1_BYTES_IN_WORD, SHA1_DIGEST_SIZE, SHA1_SIZE_OF_LEN_ADD, and sha1_transform().

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MHD_SHA1_init()

void MHD_SHA1_init

(

void *

ctx_

)

Initialise structure for SHA-1 calculation.

Parameters

ctx_	must be a struct sha1_ctx *

Definition at line 41 of file sha1.c.

References sha1_ctx::count, and sha1_ctx::H.

MHD_SHA1_update()

void MHD_SHA1_update	(	void *	ctx_,
		const uint8_t *	data,
		size_t	length )

Process portion of bytes.

Parameters

ctx_	must be a struct sha1_ctx *
data	bytes to add to hash
length	number of bytes in data

< Number of bytes in buffer

Definition at line 252 of file sha1.c.

References sha1_ctx::buffer, sha1_ctx::count, data, sha1_ctx::H, mhd_assert, NULL, SHA1_BLOCK_SIZE, and sha1_transform().

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