md5_internal.c File Reference

MD5 hash implementation and interface functions. More...

#include <stdint.h>
#include <sys/types.h>
#include <unistd.h>
#include "utils/allocs.h"
#include "utils/os.h"
#include "md5_internal.h"

Include dependency graph for md5_internal.c:

Macros
#define	byteReverse(buf, len)   /* Nothing */
#define	F1(x, y, z)   (z ^ (x & (y ^ z)))
#define	F2(x, y, z)   F1(z, x, y)
#define	F3(x, y, z)   (x ^ y ^ z)
#define	F4(x, y, z)   (y ^ (x | ~z))
#define	MD5STEP(f, w, x, y, z, data, s)    (w += f(x, y, z) + data, w = w << s | w >> (32 - s), w += x)

Typedefs
typedef struct MD5Context	MD5_CTX

Functions
int	edge_md5_vector (size_t num_elem, const uint8_t *addr[], const size_t *len, uint8_t *mac)

Detailed Description

MD5 hash implementation and interface functions.

Author

Jouni Malinen

Macro Definition Documentation

byteReverse

#define byteReverse	(		buf,
			len
	)		/* Nothing */

F1

#define F1	(		x,
			y,
			z
	)		(z ^ (x & (y ^ z)))

F2

#define F2	(		x,
			y,
			z
	)		F1(z, x, y)

F3

#define F3	(		x,
			y,
			z
	)		(x ^ y ^ z)

F4

#define F4	(		x,
			y,
			z
	)		(y ^ (x | ~z))

MD5STEP

#define MD5STEP	(		f,
			w,
			x,
			y,
			z,
			data,
			s
	)		(w += f(x, y, z) + data, w = w << s | w >> (32 - s), w += x)

Typedef Documentation

MD5_CTX

typedef struct MD5Context MD5_CTX

Function Documentation

edge_md5_vector()

int edge_md5_vector	(	size_t	num_elem,
		const uint8_t *	addr[],
		const size_t *	len,
		uint8_t *	mac
	)

MD5 hash for data vector

Parameters

	num_elem	Number of elements in the data vector
	addr	Pointers to the data areas
	len	Lengths of the data blocks
[out]	mac	Buffer for the hash

Return values

0	on success
-1	on failure

Author

Jouni Malinen j@w1..nosp@m.fi

Date

2009

Copyright

SPDX-License-Identifier: BSD-3-Clause

Remarks

The source of this code was adapted from md5_internal() in commit 0a5d68aba50c385e316a30d834d5b6174a4041d2 in src/crypto/md5-internal.c of the hostap project, see https://w1.fi/cgit/hostap/tree/src/crypto/md5-internal.c?id=0a5d68aba50c385e316a30d834d5b6174a4041d2#n34