apr_md4.c File Reference

#include "apr_strings.h"
#include "apr_md4.h"
#include "apr_lib.h"
#include "apr_crypto.h"

Go to the source code of this file.

Macros
#define	S11   3
#define	S12   7
#define	S13   11
#define	S14   19
#define	S21   3
#define	S22   5
#define	S23   9
#define	S24   13
#define	S31   3
#define	S32   9
#define	S33   11
#define	S34   15
#define	F(x, y, z)   (((x) & (y)) | ((~x) & (z)))
#define	G(x, y, z)   (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
#define	H(x, y, z)   ((x) ^ (y) ^ (z))
#define	ROTATE_LEFT(x, n)   (((x) << (n)) | ((x) >> (32-(n))))
#define	FF(a, b, c, d, x, s)
#define	GG(a, b, c, d, x, s)
#define	HH(a, b, c, d, x, s)

Functions
static void	MD4Transform (apr_uint32_t state[4], const unsigned char block[64])
static void	Encode (unsigned char *output, const apr_uint32_t *input, unsigned int len)
static void	Decode (apr_uint32_t *output, const unsigned char *input, unsigned int len)
	APU_DECLARE (apr_status_t)

Variables
static unsigned char	PADDING [64]

Macro Definition Documentation

F

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

Definition at line 88 of file apr_md4.c.

FF

#define FF	(		a,
			b,
			c,
			d,
			x,
			s
	)

Value:

  { \
  (a) += F ((b), (c), (d)) + (x); \
  (a) = ROTATE_LEFT ((a), (s)); \
  }

Definition at line 99 of file apr_md4.c.

G

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

Definition at line 89 of file apr_md4.c.

GG

#define GG	(		a,
			b,
			c,
			d,
			x,
			s
	)

Value:

  { \
  (a) += G ((b), (c), (d)) + (x) + (apr_uint32_t)0x5a827999; \
  (a) = ROTATE_LEFT ((a), (s)); \
  }

Definition at line 103 of file apr_md4.c.

H

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

Definition at line 90 of file apr_md4.c.

HH

#define HH	(		a,
			b,
			c,
			d,
			x,
			s
	)

Value:

  { \
  (a) += H ((b), (c), (d)) + (x) + (apr_uint32_t)0x6ed9eba1; \
  (a) = ROTATE_LEFT ((a), (s)); \
  }

Definition at line 107 of file apr_md4.c.

ROTATE_LEFT

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

Definition at line 94 of file apr_md4.c.

S11

#define S11   3

Definition at line 56 of file apr_md4.c.

S12

#define S12   7

Definition at line 57 of file apr_md4.c.

S13

#define S13   11

Definition at line 58 of file apr_md4.c.

S14

#define S14   19

Definition at line 59 of file apr_md4.c.

S21

#define S21   3

Definition at line 60 of file apr_md4.c.

S22

#define S22   5

Definition at line 61 of file apr_md4.c.

S23

#define S23   9

Definition at line 62 of file apr_md4.c.

S24

#define S24   13

Definition at line 63 of file apr_md4.c.

S31

#define S31   3

Definition at line 64 of file apr_md4.c.

S32

#define S32   9

Definition at line 65 of file apr_md4.c.

S33

#define S33   11

Definition at line 66 of file apr_md4.c.

S34

#define S34   15

Definition at line 67 of file apr_md4.c.

Function Documentation

APU_DECLARE()

APU_DECLARE

(

int

)

Most DBM libraries take a POSIX mode for creating files. Don't trust the mode_t type, some platforms may not support it, int is safe.

< Shared lock. More than one process or thread can hold a shared lock at any given time. Essentially, this is a "read lock", preventing writers from establishing an exclusive lock.

Definition at line 114 of file apr_md4.c.

Decode()

static void Decode ( apr_uint32_t *  output, const unsigned char *  input, unsigned int  len  )

static

Definition at line 391 of file apr_md4.c.

Encode()

static void Encode ( unsigned char *  output, const apr_uint32_t *  input, unsigned int  len  )

static

Definition at line 373 of file apr_md4.c.

MD4Transform()

static void MD4Transform ( apr_uint32_t  state[4], const unsigned char  block[64]  )

static

Definition at line 296 of file apr_md4.c.

Variable Documentation

PADDING

unsigned char PADDING[64]

static

Initial value:

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

Definition at line 75 of file apr_md4.c.