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NetTribute library with debug turned on in FShandler Donatien Garner -> Segundo Equipo -> this version

lwip/netif/ppp/md5.c@0:281d6ff68967, 2010-11-19 (annotated)

Committer:: hexley
Date:: Fri Nov 19 01:54:45 2010 +0000
Revision:: 0:281d6ff68967

Who changed what in which revision?

User	Revision	Line number	New contents of line
hexley	0:281d6ff68967	1	/*
hexley	0:281d6ff68967	2	***********************************************************************
hexley	0:281d6ff68967	3	md5.c -- the source code for MD5 routines
hexley	0:281d6ff68967	4	RSA Data Security, Inc. MD5 Message-Digest Algorithm
hexley	0:281d6ff68967	5	Created: 2/17/90 RLR
hexley	0:281d6ff68967	6	Revised: 1/91 SRD,AJ,BSK,JT Reference C ver., 7/10 constant corr.
hexley	0:281d6ff68967	7	***********************************************************************
hexley	0:281d6ff68967	8	*/
hexley	0:281d6ff68967	9
hexley	0:281d6ff68967	10	/*
hexley	0:281d6ff68967	11	***********************************************************************
hexley	0:281d6ff68967	12	Copyright (C) 1990, RSA Data Security, Inc. All rights reserved.
hexley	0:281d6ff68967	13
hexley	0:281d6ff68967	14	License to copy and use this software is granted provided that
hexley	0:281d6ff68967	15	it is identified as the "RSA Data Security, Inc. MD5 Message-
hexley	0:281d6ff68967	16	Digest Algorithm" in all material mentioning or referencing this
hexley	0:281d6ff68967	17	software or this function.
hexley	0:281d6ff68967	18
hexley	0:281d6ff68967	19	License is also granted to make and use derivative works
hexley	0:281d6ff68967	20	provided that such works are identified as "derived from the RSA
hexley	0:281d6ff68967	21	Data Security, Inc. MD5 Message-Digest Algorithm" in all
hexley	0:281d6ff68967	22	material mentioning or referencing the derived work.
hexley	0:281d6ff68967	23
hexley	0:281d6ff68967	24	RSA Data Security, Inc. makes no representations concerning
hexley	0:281d6ff68967	25	either the merchantability of this software or the suitability
hexley	0:281d6ff68967	26	of this software for any particular purpose. It is provided "as
hexley	0:281d6ff68967	27	is" without express or implied warranty of any kind.
hexley	0:281d6ff68967	28
hexley	0:281d6ff68967	29	These notices must be retained in any copies of any part of this
hexley	0:281d6ff68967	30	documentation and/or software.
hexley	0:281d6ff68967	31	***********************************************************************
hexley	0:281d6ff68967	32	*/
hexley	0:281d6ff68967	33
hexley	0:281d6ff68967	34	#include "lwip/opt.h"
hexley	0:281d6ff68967	35
hexley	0:281d6ff68967	36	#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
hexley	0:281d6ff68967	37
hexley	0:281d6ff68967	38	#if CHAP_SUPPORT \|\| MD5_SUPPORT
hexley	0:281d6ff68967	39
hexley	0:281d6ff68967	40	#include "ppp.h"
hexley	0:281d6ff68967	41	#include "pppdebug.h"
hexley	0:281d6ff68967	42
hexley	0:281d6ff68967	43	#include "md5.h"
hexley	0:281d6ff68967	44
hexley	0:281d6ff68967	45	#include <string.h>
hexley	0:281d6ff68967	46
hexley	0:281d6ff68967	47	/*
hexley	0:281d6ff68967	48	***********************************************************************
hexley	0:281d6ff68967	49	Message-digest routines:
hexley	0:281d6ff68967	50	To form the message digest for a message M
hexley	0:281d6ff68967	51	(1) Initialize a context buffer mdContext using MD5Init
hexley	0:281d6ff68967	52	(2) Call MD5Update on mdContext and M
hexley	0:281d6ff68967	53	(3) Call MD5Final on mdContext
hexley	0:281d6ff68967	54	The message digest is now in mdContext->digest[0...15]
hexley	0:281d6ff68967	55	***********************************************************************
hexley	0:281d6ff68967	56	*/
hexley	0:281d6ff68967	57
hexley	0:281d6ff68967	58	/* forward declaration */
hexley	0:281d6ff68967	59	static void Transform (u32_t buf, u32_t in);
hexley	0:281d6ff68967	60
hexley	0:281d6ff68967	61	static unsigned char PADDING[64] = {
hexley	0:281d6ff68967	62	0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
hexley	0:281d6ff68967	63	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
hexley	0:281d6ff68967	64	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
hexley	0:281d6ff68967	65	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
hexley	0:281d6ff68967	66	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
hexley	0:281d6ff68967	67	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
hexley	0:281d6ff68967	68	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
hexley	0:281d6ff68967	69	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
hexley	0:281d6ff68967	70	};
hexley	0:281d6ff68967	71
hexley	0:281d6ff68967	72	/* F, G, H and I are basic MD5 functions */
hexley	0:281d6ff68967	73	#define F(x, y, z) (((x) & (y)) \| ((~x) & (z)))
hexley	0:281d6ff68967	74	#define G(x, y, z) (((x) & (z)) \| ((y) & (~z)))
hexley	0:281d6ff68967	75	#define H(x, y, z) ((x) ^ (y) ^ (z))
hexley	0:281d6ff68967	76	#define I(x, y, z) ((y) ^ ((x) \| (~z)))
hexley	0:281d6ff68967	77
hexley	0:281d6ff68967	78	/* ROTATE_LEFT rotates x left n bits */
hexley	0:281d6ff68967	79	#define ROTATE_LEFT(x, n) (((x) << (n)) \| ((x) >> (32-(n))))
hexley	0:281d6ff68967	80
hexley	0:281d6ff68967	81	/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4 */
hexley	0:281d6ff68967	82	/* Rotation is separate from addition to prevent recomputation */
hexley	0:281d6ff68967	83	#define FF(a, b, c, d, x, s, ac) \
hexley	0:281d6ff68967	84	{(a) += F ((b), (c), (d)) + (x) + (u32_t)(ac); \
hexley	0:281d6ff68967	85	(a) = ROTATE_LEFT ((a), (s)); \
hexley	0:281d6ff68967	86	(a) += (b); \
hexley	0:281d6ff68967	87	}
hexley	0:281d6ff68967	88	#define GG(a, b, c, d, x, s, ac) \
hexley	0:281d6ff68967	89	{(a) += G ((b), (c), (d)) + (x) + (u32_t)(ac); \
hexley	0:281d6ff68967	90	(a) = ROTATE_LEFT ((a), (s)); \
hexley	0:281d6ff68967	91	(a) += (b); \
hexley	0:281d6ff68967	92	}
hexley	0:281d6ff68967	93	#define HH(a, b, c, d, x, s, ac) \
hexley	0:281d6ff68967	94	{(a) += H ((b), (c), (d)) + (x) + (u32_t)(ac); \
hexley	0:281d6ff68967	95	(a) = ROTATE_LEFT ((a), (s)); \
hexley	0:281d6ff68967	96	(a) += (b); \
hexley	0:281d6ff68967	97	}
hexley	0:281d6ff68967	98	#define II(a, b, c, d, x, s, ac) \
hexley	0:281d6ff68967	99	{(a) += I ((b), (c), (d)) + (x) + (u32_t)(ac); \
hexley	0:281d6ff68967	100	(a) = ROTATE_LEFT ((a), (s)); \
hexley	0:281d6ff68967	101	(a) += (b); \
hexley	0:281d6ff68967	102	}
hexley	0:281d6ff68967	103
hexley	0:281d6ff68967	104	#ifdef __STDC__
hexley	0:281d6ff68967	105	#define UL(x) x##UL
hexley	0:281d6ff68967	106	#else
hexley	0:281d6ff68967	107	#ifdef WIN32
hexley	0:281d6ff68967	108	#define UL(x) x##UL
hexley	0:281d6ff68967	109	#else
hexley	0:281d6ff68967	110	#define UL(x) x
hexley	0:281d6ff68967	111	#endif
hexley	0:281d6ff68967	112	#endif
hexley	0:281d6ff68967	113
hexley	0:281d6ff68967	114	/* The routine MD5Init initializes the message-digest context
hexley	0:281d6ff68967	115	mdContext. All fields are set to zero.
hexley	0:281d6ff68967	116	*/
hexley	0:281d6ff68967	117	void
hexley	0:281d6ff68967	118	MD5Init (MD5_CTX *mdContext)
hexley	0:281d6ff68967	119	{
hexley	0:281d6ff68967	120	mdContext->i[0] = mdContext->i[1] = (u32_t)0;
hexley	0:281d6ff68967	121
hexley	0:281d6ff68967	122	/* Load magic initialization constants. */
hexley	0:281d6ff68967	123	mdContext->buf[0] = (u32_t)0x67452301UL;
hexley	0:281d6ff68967	124	mdContext->buf[1] = (u32_t)0xefcdab89UL;
hexley	0:281d6ff68967	125	mdContext->buf[2] = (u32_t)0x98badcfeUL;
hexley	0:281d6ff68967	126	mdContext->buf[3] = (u32_t)0x10325476UL;
hexley	0:281d6ff68967	127	}
hexley	0:281d6ff68967	128
hexley	0:281d6ff68967	129	/* The routine MD5Update updates the message-digest context to
hexley	0:281d6ff68967	130	account for the presence of each of the characters inBuf[0..inLen-1]
hexley	0:281d6ff68967	131	in the message whose digest is being computed.
hexley	0:281d6ff68967	132	*/
hexley	0:281d6ff68967	133	void
hexley	0:281d6ff68967	134	MD5Update(MD5_CTX mdContext, unsigned char inBuf, unsigned int inLen)
hexley	0:281d6ff68967	135	{
hexley	0:281d6ff68967	136	u32_t in[16];
hexley	0:281d6ff68967	137	int mdi;
hexley	0:281d6ff68967	138	unsigned int i, ii;
hexley	0:281d6ff68967	139
hexley	0:281d6ff68967	140	#if 0
hexley	0:281d6ff68967	141	PPPDEBUG(LOG_INFO, ("MD5Update: %u:%.H\n", inLen, LWIP_MIN(inLen, 20) 2, inBuf));
hexley	0:281d6ff68967	142	PPPDEBUG(LOG_INFO, ("MD5Update: %u:%s\n", inLen, inBuf));
hexley	0:281d6ff68967	143	#endif
hexley	0:281d6ff68967	144
hexley	0:281d6ff68967	145	/* compute number of bytes mod 64 */
hexley	0:281d6ff68967	146	mdi = (int)((mdContext->i[0] >> 3) & 0x3F);
hexley	0:281d6ff68967	147
hexley	0:281d6ff68967	148	/* update number of bits */
hexley	0:281d6ff68967	149	if ((mdContext->i[0] + ((u32_t)inLen << 3)) < mdContext->i[0]) {
hexley	0:281d6ff68967	150	mdContext->i[1]++;
hexley	0:281d6ff68967	151	}
hexley	0:281d6ff68967	152	mdContext->i[0] += ((u32_t)inLen << 3);
hexley	0:281d6ff68967	153	mdContext->i[1] += ((u32_t)inLen >> 29);
hexley	0:281d6ff68967	154
hexley	0:281d6ff68967	155	while (inLen--) {
hexley	0:281d6ff68967	156	/* add new character to buffer, increment mdi */
hexley	0:281d6ff68967	157	mdContext->in[mdi++] = *inBuf++;
hexley	0:281d6ff68967	158
hexley	0:281d6ff68967	159	/* transform if necessary */
hexley	0:281d6ff68967	160	if (mdi == 0x40) {
hexley	0:281d6ff68967	161	for (i = 0, ii = 0; i < 16; i++, ii += 4) {
hexley	0:281d6ff68967	162	in[i] = (((u32_t)mdContext->in[ii+3]) << 24) \|
hexley	0:281d6ff68967	163	(((u32_t)mdContext->in[ii+2]) << 16) \|
hexley	0:281d6ff68967	164	(((u32_t)mdContext->in[ii+1]) << 8) \|
hexley	0:281d6ff68967	165	((u32_t)mdContext->in[ii]);
hexley	0:281d6ff68967	166	}
hexley	0:281d6ff68967	167	Transform (mdContext->buf, in);
hexley	0:281d6ff68967	168	mdi = 0;
hexley	0:281d6ff68967	169	}
hexley	0:281d6ff68967	170	}
hexley	0:281d6ff68967	171	}
hexley	0:281d6ff68967	172
hexley	0:281d6ff68967	173	/* The routine MD5Final terminates the message-digest computation and
hexley	0:281d6ff68967	174	ends with the desired message digest in mdContext->digest[0...15].
hexley	0:281d6ff68967	175	*/
hexley	0:281d6ff68967	176	void
hexley	0:281d6ff68967	177	MD5Final (unsigned char hash[], MD5_CTX *mdContext)
hexley	0:281d6ff68967	178	{
hexley	0:281d6ff68967	179	u32_t in[16];
hexley	0:281d6ff68967	180	int mdi;
hexley	0:281d6ff68967	181	unsigned int i, ii;
hexley	0:281d6ff68967	182	unsigned int padLen;
hexley	0:281d6ff68967	183
hexley	0:281d6ff68967	184	/* save number of bits */
hexley	0:281d6ff68967	185	in[14] = mdContext->i[0];
hexley	0:281d6ff68967	186	in[15] = mdContext->i[1];
hexley	0:281d6ff68967	187
hexley	0:281d6ff68967	188	/* compute number of bytes mod 64 */
hexley	0:281d6ff68967	189	mdi = (int)((mdContext->i[0] >> 3) & 0x3F);
hexley	0:281d6ff68967	190
hexley	0:281d6ff68967	191	/* pad out to 56 mod 64 */
hexley	0:281d6ff68967	192	padLen = (mdi < 56) ? (56 - mdi) : (120 - mdi);
hexley	0:281d6ff68967	193	MD5Update (mdContext, PADDING, padLen);
hexley	0:281d6ff68967	194
hexley	0:281d6ff68967	195	/* append length in bits and transform */
hexley	0:281d6ff68967	196	for (i = 0, ii = 0; i < 14; i++, ii += 4) {
hexley	0:281d6ff68967	197	in[i] = (((u32_t)mdContext->in[ii+3]) << 24) \|
hexley	0:281d6ff68967	198	(((u32_t)mdContext->in[ii+2]) << 16) \|
hexley	0:281d6ff68967	199	(((u32_t)mdContext->in[ii+1]) << 8) \|
hexley	0:281d6ff68967	200	((u32_t)mdContext->in[ii]);
hexley	0:281d6ff68967	201	}
hexley	0:281d6ff68967	202	Transform (mdContext->buf, in);
hexley	0:281d6ff68967	203
hexley	0:281d6ff68967	204	/* store buffer in digest */
hexley	0:281d6ff68967	205	for (i = 0, ii = 0; i < 4; i++, ii += 4) {
hexley	0:281d6ff68967	206	mdContext->digest[ii] = (unsigned char)(mdContext->buf[i] & 0xFF);
hexley	0:281d6ff68967	207	mdContext->digest[ii+1] =
hexley	0:281d6ff68967	208	(unsigned char)((mdContext->buf[i] >> 8) & 0xFF);
hexley	0:281d6ff68967	209	mdContext->digest[ii+2] =
hexley	0:281d6ff68967	210	(unsigned char)((mdContext->buf[i] >> 16) & 0xFF);
hexley	0:281d6ff68967	211	mdContext->digest[ii+3] =
hexley	0:281d6ff68967	212	(unsigned char)((mdContext->buf[i] >> 24) & 0xFF);
hexley	0:281d6ff68967	213	}
hexley	0:281d6ff68967	214	SMEMCPY(hash, mdContext->digest, 16);
hexley	0:281d6ff68967	215	}
hexley	0:281d6ff68967	216
hexley	0:281d6ff68967	217	/* Basic MD5 step. Transforms buf based on in.
hexley	0:281d6ff68967	218	*/
hexley	0:281d6ff68967	219	static void
hexley	0:281d6ff68967	220	Transform (u32_t buf, u32_t in)
hexley	0:281d6ff68967	221	{
hexley	0:281d6ff68967	222	u32_t a = buf[0], b = buf[1], c = buf[2], d = buf[3];
hexley	0:281d6ff68967	223
hexley	0:281d6ff68967	224	/* Round 1 */
hexley	0:281d6ff68967	225	#define S11 7
hexley	0:281d6ff68967	226	#define S12 12
hexley	0:281d6ff68967	227	#define S13 17
hexley	0:281d6ff68967	228	#define S14 22
hexley	0:281d6ff68967	229	FF ( a, b, c, d, in[ 0], S11, UL(3614090360)); /* 1 */
hexley	0:281d6ff68967	230	FF ( d, a, b, c, in[ 1], S12, UL(3905402710)); /* 2 */
hexley	0:281d6ff68967	231	FF ( c, d, a, b, in[ 2], S13, UL( 606105819)); /* 3 */
hexley	0:281d6ff68967	232	FF ( b, c, d, a, in[ 3], S14, UL(3250441966)); /* 4 */
hexley	0:281d6ff68967	233	FF ( a, b, c, d, in[ 4], S11, UL(4118548399)); /* 5 */
hexley	0:281d6ff68967	234	FF ( d, a, b, c, in[ 5], S12, UL(1200080426)); /* 6 */
hexley	0:281d6ff68967	235	FF ( c, d, a, b, in[ 6], S13, UL(2821735955)); /* 7 */
hexley	0:281d6ff68967	236	FF ( b, c, d, a, in[ 7], S14, UL(4249261313)); /* 8 */
hexley	0:281d6ff68967	237	FF ( a, b, c, d, in[ 8], S11, UL(1770035416)); /* 9 */
hexley	0:281d6ff68967	238	FF ( d, a, b, c, in[ 9], S12, UL(2336552879)); /* 10 */
hexley	0:281d6ff68967	239	FF ( c, d, a, b, in[10], S13, UL(4294925233)); /* 11 */
hexley	0:281d6ff68967	240	FF ( b, c, d, a, in[11], S14, UL(2304563134)); /* 12 */
hexley	0:281d6ff68967	241	FF ( a, b, c, d, in[12], S11, UL(1804603682)); /* 13 */
hexley	0:281d6ff68967	242	FF ( d, a, b, c, in[13], S12, UL(4254626195)); /* 14 */
hexley	0:281d6ff68967	243	FF ( c, d, a, b, in[14], S13, UL(2792965006)); /* 15 */
hexley	0:281d6ff68967	244	FF ( b, c, d, a, in[15], S14, UL(1236535329)); /* 16 */
hexley	0:281d6ff68967	245
hexley	0:281d6ff68967	246	/* Round 2 */
hexley	0:281d6ff68967	247	#define S21 5
hexley	0:281d6ff68967	248	#define S22 9
hexley	0:281d6ff68967	249	#define S23 14
hexley	0:281d6ff68967	250	#define S24 20
hexley	0:281d6ff68967	251	GG ( a, b, c, d, in[ 1], S21, UL(4129170786)); /* 17 */
hexley	0:281d6ff68967	252	GG ( d, a, b, c, in[ 6], S22, UL(3225465664)); /* 18 */
hexley	0:281d6ff68967	253	GG ( c, d, a, b, in[11], S23, UL( 643717713)); /* 19 */
hexley	0:281d6ff68967	254	GG ( b, c, d, a, in[ 0], S24, UL(3921069994)); /* 20 */
hexley	0:281d6ff68967	255	GG ( a, b, c, d, in[ 5], S21, UL(3593408605)); /* 21 */
hexley	0:281d6ff68967	256	GG ( d, a, b, c, in[10], S22, UL( 38016083)); /* 22 */
hexley	0:281d6ff68967	257	GG ( c, d, a, b, in[15], S23, UL(3634488961)); /* 23 */
hexley	0:281d6ff68967	258	GG ( b, c, d, a, in[ 4], S24, UL(3889429448)); /* 24 */
hexley	0:281d6ff68967	259	GG ( a, b, c, d, in[ 9], S21, UL( 568446438)); /* 25 */
hexley	0:281d6ff68967	260	GG ( d, a, b, c, in[14], S22, UL(3275163606)); /* 26 */
hexley	0:281d6ff68967	261	GG ( c, d, a, b, in[ 3], S23, UL(4107603335)); /* 27 */
hexley	0:281d6ff68967	262	GG ( b, c, d, a, in[ 8], S24, UL(1163531501)); /* 28 */
hexley	0:281d6ff68967	263	GG ( a, b, c, d, in[13], S21, UL(2850285829)); /* 29 */
hexley	0:281d6ff68967	264	GG ( d, a, b, c, in[ 2], S22, UL(4243563512)); /* 30 */
hexley	0:281d6ff68967	265	GG ( c, d, a, b, in[ 7], S23, UL(1735328473)); /* 31 */
hexley	0:281d6ff68967	266	GG ( b, c, d, a, in[12], S24, UL(2368359562)); /* 32 */
hexley	0:281d6ff68967	267
hexley	0:281d6ff68967	268	/* Round 3 */
hexley	0:281d6ff68967	269	#define S31 4
hexley	0:281d6ff68967	270	#define S32 11
hexley	0:281d6ff68967	271	#define S33 16
hexley	0:281d6ff68967	272	#define S34 23
hexley	0:281d6ff68967	273	HH ( a, b, c, d, in[ 5], S31, UL(4294588738)); /* 33 */
hexley	0:281d6ff68967	274	HH ( d, a, b, c, in[ 8], S32, UL(2272392833)); /* 34 */
hexley	0:281d6ff68967	275	HH ( c, d, a, b, in[11], S33, UL(1839030562)); /* 35 */
hexley	0:281d6ff68967	276	HH ( b, c, d, a, in[14], S34, UL(4259657740)); /* 36 */
hexley	0:281d6ff68967	277	HH ( a, b, c, d, in[ 1], S31, UL(2763975236)); /* 37 */
hexley	0:281d6ff68967	278	HH ( d, a, b, c, in[ 4], S32, UL(1272893353)); /* 38 */
hexley	0:281d6ff68967	279	HH ( c, d, a, b, in[ 7], S33, UL(4139469664)); /* 39 */
hexley	0:281d6ff68967	280	HH ( b, c, d, a, in[10], S34, UL(3200236656)); /* 40 */
hexley	0:281d6ff68967	281	HH ( a, b, c, d, in[13], S31, UL( 681279174)); /* 41 */
hexley	0:281d6ff68967	282	HH ( d, a, b, c, in[ 0], S32, UL(3936430074)); /* 42 */
hexley	0:281d6ff68967	283	HH ( c, d, a, b, in[ 3], S33, UL(3572445317)); /* 43 */
hexley	0:281d6ff68967	284	HH ( b, c, d, a, in[ 6], S34, UL( 76029189)); /* 44 */
hexley	0:281d6ff68967	285	HH ( a, b, c, d, in[ 9], S31, UL(3654602809)); /* 45 */
hexley	0:281d6ff68967	286	HH ( d, a, b, c, in[12], S32, UL(3873151461)); /* 46 */
hexley	0:281d6ff68967	287	HH ( c, d, a, b, in[15], S33, UL( 530742520)); /* 47 */
hexley	0:281d6ff68967	288	HH ( b, c, d, a, in[ 2], S34, UL(3299628645)); /* 48 */
hexley	0:281d6ff68967	289
hexley	0:281d6ff68967	290	/* Round 4 */
hexley	0:281d6ff68967	291	#define S41 6
hexley	0:281d6ff68967	292	#define S42 10
hexley	0:281d6ff68967	293	#define S43 15
hexley	0:281d6ff68967	294	#define S44 21
hexley	0:281d6ff68967	295	II ( a, b, c, d, in[ 0], S41, UL(4096336452)); /* 49 */
hexley	0:281d6ff68967	296	II ( d, a, b, c, in[ 7], S42, UL(1126891415)); /* 50 */
hexley	0:281d6ff68967	297	II ( c, d, a, b, in[14], S43, UL(2878612391)); /* 51 */
hexley	0:281d6ff68967	298	II ( b, c, d, a, in[ 5], S44, UL(4237533241)); /* 52 */
hexley	0:281d6ff68967	299	II ( a, b, c, d, in[12], S41, UL(1700485571)); /* 53 */
hexley	0:281d6ff68967	300	II ( d, a, b, c, in[ 3], S42, UL(2399980690)); /* 54 */
hexley	0:281d6ff68967	301	II ( c, d, a, b, in[10], S43, UL(4293915773)); /* 55 */
hexley	0:281d6ff68967	302	II ( b, c, d, a, in[ 1], S44, UL(2240044497)); /* 56 */
hexley	0:281d6ff68967	303	II ( a, b, c, d, in[ 8], S41, UL(1873313359)); /* 57 */
hexley	0:281d6ff68967	304	II ( d, a, b, c, in[15], S42, UL(4264355552)); /* 58 */
hexley	0:281d6ff68967	305	II ( c, d, a, b, in[ 6], S43, UL(2734768916)); /* 59 */
hexley	0:281d6ff68967	306	II ( b, c, d, a, in[13], S44, UL(1309151649)); /* 60 */
hexley	0:281d6ff68967	307	II ( a, b, c, d, in[ 4], S41, UL(4149444226)); /* 61 */
hexley	0:281d6ff68967	308	II ( d, a, b, c, in[11], S42, UL(3174756917)); /* 62 */
hexley	0:281d6ff68967	309	II ( c, d, a, b, in[ 2], S43, UL( 718787259)); /* 63 */
hexley	0:281d6ff68967	310	II ( b, c, d, a, in[ 9], S44, UL(3951481745)); /* 64 */
hexley	0:281d6ff68967	311
hexley	0:281d6ff68967	312	buf[0] += a;
hexley	0:281d6ff68967	313	buf[1] += b;
hexley	0:281d6ff68967	314	buf[2] += c;
hexley	0:281d6ff68967	315	buf[3] += d;
hexley	0:281d6ff68967	316	}
hexley	0:281d6ff68967	317
hexley	0:281d6ff68967	318	#endif /* CHAP_SUPPORT \|\| MD5_SUPPORT */
hexley	0:281d6ff68967	319
hexley	0:281d6ff68967	320	#endif /* PPP_SUPPORT */

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Type:	Library
Created:	19 Nov 2010
Imports:	44
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	1

lwip/netif/ppp/md5.c@0:281d6ff68967, 2010-11-19 (annotated)

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