libavutil/md5.c File Reference

#include <string.h>
#include "bswap.h"
#include "md5.h"

Go to the source code of this file.

Data Structures
struct	AVMD5
Defines
#define	CORE(i, a, b, c, d)
#define	CORE2(i)   CORE(i,a,b,c,d) CORE((i+1),d,a,b,c) CORE((i+2),c,d,a,b) CORE((i+3),b,c,d,a)
#define	CORE4(i)   CORE2(i) CORE2((i+4)) CORE2((i+8)) CORE2((i+12))
Functions
static void	body (uint32_t ABCD[4], uint32_t X[16])
void	av_md5_init (AVMD5 *ctx)
void	av_md5_update (AVMD5 *ctx, const uint8_t *src, const int len)
void	av_md5_final (AVMD5 *ctx, uint8_t *dst)
void	av_md5_sum (uint8_t *dst, const uint8_t *src, const int len)
Variables
const int	av_md5_size = sizeof(AVMD5)
static const uint8_t	S [4][4]
static const uint32_t	T [64]

---

Define Documentation

#define CORE	(	i,
		a,
		b,
		c,
		d		)

Value:

t = S[i>>4][i&3];\
        a += T[i];\
\
        if(i<32){\
            if(i<16) a += (d ^ (b&(c^d))) + X[      i &15 ];\
            else     a += (c ^ (d&(c^b))) + X[ (1+5*i)&15 ];\
        }else{\
            if(i<48) a += (b^c^d)         + X[ (5+3*i)&15 ];\
            else     a += (c^(b|~d))      + X[ (  7*i)&15 ];\
        }\
        a = b + (( a << t ) | ( a >> (32 - t) ));

Definition at line 74 of file md5.c.

Referenced by body().

#define CORE2

(

i

)

CORE(i,a,b,c,d) CORE((i+1),d,a,b,c) CORE((i+2),c,d,a,b) CORE((i+3),b,c,d,a)

#define CORE4

(

i

)

CORE2(i) CORE2((i+4)) CORE2((i+8)) CORE2((i+12))

Referenced by body().

---

Function Documentation

void av_md5_final	(	AVMD5 *	ctx,
		uint8_t *	dst
	)

Definition at line 142 of file md5.c.

Referenced by av_md5_sum(), flac_encode_frame(), make_digest_auth(), md5_close(), and md5_finish().

void av_md5_init

(

AVMD5 *

ctx

)

Definition at line 118 of file md5.c.

Referenced by av_md5_sum(), flac_encode_init(), make_digest_auth(), and md5_open().

void av_md5_sum	(	uint8_t *	dst,
		const uint8_t *	src,
		const int	len
	)

Definition at line 156 of file md5.c.

Referenced by av_lfg_init(), and ff_rdt_calc_response_and_checksum().

void av_md5_update	(	AVMD5 *	ctx,
		const uint8_t *	src,
		const int	len
	)

Definition at line 127 of file md5.c.

Referenced by av_md5_final(), av_md5_sum(), md5_write(), update_md5_strings(), and update_md5_sum().

static void body	(	uint32_t	ABCD[4],
		uint32_t	X[16]
	)			[static]

Definition at line 87 of file md5.c.

Referenced by av_md5_update().

---

Variable Documentation

const int av_md5_size = sizeof(AVMD5)

Definition at line 43 of file md5.c.

Referenced by flac_encode_init(), make_digest_auth(), and md5_open().

const uint8_t S[4][4] [static]

Initial value:

 {
    { 7, 12, 17, 22 },  
    { 5,  9, 14, 20 },  
    { 4, 11, 16, 23 },  
    { 6, 10, 15, 21 }   
}

Definition at line 45 of file md5.c.

const uint32_t T[64] [static]

Initial value:

 { 
    0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,   
    0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
    0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
    0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,

    0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,   
    0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
    0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
    0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,

    0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,   
    0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
    0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
    0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,

    0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,   
    0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
    0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
    0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391,
}

Definition at line 52 of file md5.c.