apr_sha1.c File Reference

#include "apr_sha1.h"
#include "apr_base64.h"
#include "apr_strings.h"
#include "apr_lib.h"
#include <string.h>

Go to the source code of this file.

Classes
union	endianTest

Macros
#define	UNROLL_LOOPS
#define	USE_MODIFIED_SHA
#define	f1(x, y, z)   ((x & y) | (~x & z))
#define	f2(x, y, z)   (x ^ y ^ z)
#define	f3(x, y, z)   ((x & y) | (x & z) | (y & z))
#define	f4(x, y, z)   (x ^ y ^ z)
#define	CONST1   0x5a827999L
#define	CONST2   0x6ed9eba1L
#define	CONST3   0x8f1bbcdcL
#define	CONST4   0xca62c1d6L
#define	ROT32(x, n)   ((x << n) | (x >> (32 - n)))
#define	FUNC(n, i)
#define	SHA_BLOCKSIZE   64

Functions
static void	sha_transform (apr_sha1_ctx_t *sha_info)
static char	isLittleEndian (void)
static void	maybe_byte_reverse (apr_uint32_t *buffer, int count)
	APU_DECLARE (void)
	Computes SipHash-2-4, producing a 64bit (APR_SIPHASH_DSIZE) hash from a message and a 128bit (APR_SIPHASH_KSIZE) secret key, into a possibly unaligned buffer (using the little endian representation as defined by the authors for interoperabilty) usable as a MAC.

Macro Definition Documentation

CONST1

#define CONST1   0x5a827999L

Definition at line 69 of file apr_sha1.c.

CONST2

#define CONST2   0x6ed9eba1L

Definition at line 70 of file apr_sha1.c.

CONST3

#define CONST3   0x8f1bbcdcL

Definition at line 71 of file apr_sha1.c.

CONST4

#define CONST4   0xca62c1d6L

Definition at line 72 of file apr_sha1.c.

f1

#define f1	(		x,
			y,
			z
	)		((x & y) | (~x & z))

Definition at line 63 of file apr_sha1.c.

f2

#define f2	(		x,
			y,
			z
	)		(x ^ y ^ z)

Definition at line 64 of file apr_sha1.c.

f3

#define f3	(		x,
			y,
			z
	)		((x & y) | (x & z) | (y & z))

Definition at line 65 of file apr_sha1.c.

f4

#define f4	(		x,
			y,
			z
	)		(x ^ y ^ z)

Definition at line 66 of file apr_sha1.c.

FUNC

#define FUNC	(		n,
			i
	)

Value:

    temp = ROT32(A,5) + f##n(B,C,D) + E + W[i] + CONST##n;  \
    E = D; D = C; C = ROT32(B,30); B = A; A = temp

Definition at line 78 of file apr_sha1.c.

ROT32

#define ROT32	(		x,
			n
	)		((x << n) | (x >> (32 - n)))

Definition at line 76 of file apr_sha1.c.

SHA_BLOCKSIZE

#define SHA_BLOCKSIZE   64

Definition at line 82 of file apr_sha1.c.

UNROLL_LOOPS

#define UNROLL_LOOPS

Definition at line 57 of file apr_sha1.c.

USE_MODIFIED_SHA

#define USE_MODIFIED_SHA

Definition at line 60 of file apr_sha1.c.

Function Documentation

APU_DECLARE()

APU_DECLARE

(

void

)

Computes SipHash-2-4, producing a 64bit (APR_SIPHASH_DSIZE) hash from a message and a 128bit (APR_SIPHASH_KSIZE) secret key, into a possibly unaligned buffer (using the little endian representation as defined by the authors for interoperabilty) usable as a MAC.

Computes SipHash-4-8, producing a 64bit (APR_SIPHASH_DSIZE) hash from a message and a 128bit (APR_SIPHASH_KSIZE) secret key, into a possibly unaligned buffer (using the little endian representation as defined by the authors for interoperabilty) usable as a MAC.

Initialize the SHA digest

Parameters

context

The SHA context to initialize

Update the SHA digest

Parameters

context	The SHA1 context to update
input	The buffer to add to the SHA digest
inputLen	The length of the input buffer

Update the SHA digest with binary data

Parameters

context	The SHA1 context to update
input	The buffer to add to the SHA digest
inputLen	The length of the input buffer

Finish computing the SHA digest

Parameters

digest	the output buffer in which to store the digest
context	The context to finalize
out	The output buffer (or MAC)
src	The message
len	The length of the message
key	The secret key

Returns

The hash value as a 64bit unsigned integer

< use pool pre cleanup

Definition at line 206 of file apr_sha1.c.

isLittleEndian()

static char isLittleEndian ( void  )

static

Definition at line 172 of file apr_sha1.c.

maybe_byte_reverse()

static void maybe_byte_reverse ( apr_uint32_t *  buffer, int  count  )

static

Definition at line 182 of file apr_sha1.c.

sha_transform()

static void sha_transform ( apr_sha1_ctx_t *  sha_info )

static

Definition at line 107 of file apr_sha1.c.