radius_message_digest.h

vxworks下radius协议栈 的源代码

/* radius_message_digest.h */

/* Performs HMAC_MD5 algorithm */

/* Copyright 1984 - 2000 Wind River Systems, Inc. */
#include "copyright_wrs.h"

/*
modification history
____________________
01a,14mar02,md  create for EAP support
*/

#ifndef __INCradius_message_digesth
#define __INCradius_message_digesth

typedef	_struct	MD_CONTEXT
{
  ULONG state[4];                                   /* state (ABCD) */
  ULONG count[2];        /* number of bits, modulo 2^64 (lsb first) */
  BYTE buffer[64];                         /* input buffer */
} _pack MD_CONTEXT;

/* POINTER defines a generic pointer type */

typedef BYTE *POINTER; 

/* ROTATE_LEFT rotates x left n bits. */

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

/* MD4 transform definitions appear here ...*/

/* Constants for MD4Transform routine.*/

#define MD4_S11 3
#define MD4_S12 7
#define MD4_S13 11
#define MD4_S14 19
#define MD4_S21 3
#define MD4_S22 5
#define MD4_S23 9
#define MD4_S24 13
#define MD4_S31 3
#define MD4_S32 9
#define MD4_S33 11
#define MD4_S34 15

/* F, G, and H are basic MD4 functions. */

#define MD4_F(x, y, z) (((x) & (y)) | ((~x) & (z)))
#define MD4_G(x, y, z) (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
#define MD4_H(x, y, z) ((x) ^ (y) ^ (z))


/* FF, GG, and HH transformations for rounds 1, 2, and 3. Rotation is separate from addition to prevent recomputation. */

#define MD4_FF(a, b, c, d, x, s) { \
    (a) += MD4_F ((b), (c), (d)) + (x); \
    (a) = ROTATE_LEFT ((a), (s)); \
  }
#define MD4_GG(a, b, c, d, x, s) { \
    (a) += MD4_G ((b), (c), (d)) + (x) + (ULONG)0x5a827999; \
    (a) = ROTATE_LEFT ((a), (s)); \
  }
#define MD4_HH(a, b, c, d, x, s) { \
    (a) += MD4_H ((b), (c), (d)) + (x) + (ULONG)0x6ed9eba1; \
    (a) = ROTATE_LEFT ((a), (s)); \
  }


/* MD5 transform definitions appear here ...*/
 
/* Constants for MD5Transform routine.*/

#define MD5_S11 7
#define MD5_S12 12
#define MD5_S13 17
#define MD5_S14 22
#define MD5_S21 5
#define MD5_S22 9
#define MD5_S23 14
#define MD5_S24 20
#define MD5_S31 4
#define MD5_S32 11
#define MD5_S33 16
#define MD5_S34 23
#define MD5_S41 6
#define MD5_S42 10
#define MD5_S43 15
#define MD5_S44 21

/* F, G, H and I are basic MD5 functions. */

#define MD5_F(x, y, z) (((x) & (y)) | ((~x) & (z)))
#define MD5_G(x, y, z) (((x) & (z)) | ((y) & (~z)))
#define MD5_H(x, y, z) ((x) ^ (y) ^ (z))
#define MD5_I(x, y, z) ((y) ^ ((x) | (~z)))

/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4. Rotation is separate from addition to prevent recomputation. */

#define MD5_FF(a, b, c, d, x, s, ac) { \
	(a) += MD5_F ((b), (c), (d)) + (x) + (ULONG)(ac); \
	(a) = ROTATE_LEFT ((a), (s)); \
	(a) += (b); \
 	}
#define MD5_GG(a, b, c, d, x, s, ac) { \
	(a) += MD5_G ((b), (c), (d)) + (x) + (ULONG)(ac); \
	(a) = ROTATE_LEFT ((a), (s)); \
	(a) += (b); \
 	}
#define MD5_HH(a, b, c, d, x, s, ac) { \
	(a) += MD5_H ((b), (c), (d)) + (x) + (ULONG)(ac); \
	(a) = ROTATE_LEFT ((a), (s)); \
	(a) += (b); \
 	}
#define MD5_II(a, b, c, d, x, s, ac) { \
	(a) += MD5_I ((b), (c), (d)) + (x) + (ULONG)(ac); \
	(a) = ROTATE_LEFT ((a), (s)); \
	(a) += (b); \
 	}

void radius_hmac_md5 (unsigned char*, int, unsigned char*, int, caddr_t);

#endif	/* __INCradius_message_digesth */