--- /dev/null
+/*
+ Unix SMB/Netbios implementation.
+ Version 1.9.
+ HMAC MD5 code for use in NTLMv2
+ Copyright (C) Luke Kenneth Casson Leighton 1996-2000
+ Copyright (C) Andrew Tridgell 1992-2000
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/* taken direct from rfc2104 implementation and modified for suitable use
+ * for ntlmv2.
+ */
+
+#include "includes.h"
+
+/***********************************************************************
+ the rfc 2104 version of hmac_md5 initialisation.
+***********************************************************************/
+void hmac_md5_init_rfc2104(uchar* key, int key_len, HMACMD5Context *ctx)
+{
+ int i;
+
+ /* if key is longer than 64 bytes reset it to key=MD5(key) */
+ if (key_len > 64)
+ {
+ uchar tk[16];
+ struct MD5Context tctx;
+
+ MD5Init(&tctx);
+ MD5Update(&tctx, key, key_len);
+ MD5Final(tk, &tctx);
+
+ key = tk;
+ key_len = 16;
+ }
+
+ /* start out by storing key in pads */
+ ZERO_STRUCT(ctx->k_ipad);
+ ZERO_STRUCT(ctx->k_opad);
+ bcopy( key, ctx->k_ipad, key_len);
+ bcopy( key, ctx->k_opad, key_len);
+
+ /* XOR key with ipad and opad values */
+ for (i=0; i<64; i++)
+ {
+ ctx->k_ipad[i] ^= 0x36;
+ ctx->k_opad[i] ^= 0x5c;
+ }
+
+ MD5Init(&ctx->ctx);
+ MD5Update(&ctx->ctx, ctx->k_ipad, 64);
+}
+
+/***********************************************************************
+ the microsoft version of hmac_md5 initialisation.
+***********************************************************************/
+void hmac_md5_init_limK_to_64(const uchar* key, int key_len,
+ HMACMD5Context *ctx)
+{
+ int i;
+
+ /* if key is longer than 64 bytes truncate it */
+ if (key_len > 64)
+ {
+ key_len = 64;
+ }
+
+ /* start out by storing key in pads */
+ ZERO_STRUCT(ctx->k_ipad);
+ ZERO_STRUCT(ctx->k_opad);
+ bcopy( key, ctx->k_ipad, key_len);
+ bcopy( key, ctx->k_opad, key_len);
+
+ /* XOR key with ipad and opad values */
+ for (i=0; i<64; i++)
+ {
+ ctx->k_ipad[i] ^= 0x36;
+ ctx->k_opad[i] ^= 0x5c;
+ }
+
+ MD5Init(&ctx->ctx);
+ MD5Update(&ctx->ctx, ctx->k_ipad, 64);
+}
+
+/***********************************************************************
+ update hmac_md5 "inner" buffer
+***********************************************************************/
+void hmac_md5_update(const uchar* text, int text_len, HMACMD5Context *ctx)
+{
+ MD5Update(&ctx->ctx, text, text_len); /* then text of datagram */
+}
+
+/***********************************************************************
+ finish off hmac_md5 "inner" buffer and generate outer one.
+***********************************************************************/
+void hmac_md5_final(uchar *digest, HMACMD5Context *ctx)
+
+{
+ struct MD5Context ctx_o;
+
+ MD5Final(digest, &ctx->ctx);
+
+ MD5Init(&ctx_o);
+ MD5Update(&ctx_o, ctx->k_opad, 64);
+ MD5Update(&ctx_o, digest, 16);
+ MD5Final(digest, &ctx_o);
+}
+
+/***********************************************************
+ single function to calculate an HMAC MD5 digest from data.
+ use the microsoft hmacmd5 init method because the key is 16 bytes.
+************************************************************/
+void hmac_md5( uchar key[16], uchar* data, int data_len, uchar* digest)
+{
+ HMACMD5Context ctx;
+ hmac_md5_init_limK_to_64(key, 16, &ctx);
+ if (data_len != 0)
+ {
+ hmac_md5_update(data, data_len, &ctx);
+ }
+ hmac_md5_final(digest, &ctx);
+}
+
--- /dev/null
+/*
+ * This code implements the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest. This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ *
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ */
+
+/* This code slightly modified to fit into Samba by
+ abartlet@samba.org Jun 2001 */
+
+#include "includes.h"
+
+#include "md5.h"
+
+/*
+ * Note: this code is harmless on little-endian machines.
+ */
+static void byteReverse(unsigned char *buf, unsigned longs)
+{
+ uint32 t;
+ do {
+ t = (uint32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
+ ((unsigned) buf[1] << 8 | buf[0]);
+ *(uint32 *) buf = t;
+ buf += 4;
+ } while (--longs);
+}
+
+/*
+ * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
+ * initialization constants.
+ */
+void MD5Init(struct MD5Context *ctx)
+{
+ ctx->buf[0] = 0x67452301;
+ ctx->buf[1] = 0xefcdab89;
+ ctx->buf[2] = 0x98badcfe;
+ ctx->buf[3] = 0x10325476;
+
+ ctx->bits[0] = 0;
+ ctx->bits[1] = 0;
+}
+
+/*
+ * Update context to reflect the concatenation of another buffer full
+ * of bytes.
+ */
+void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len)
+{
+ register uint32 t;
+
+ /* Update bitcount */
+
+ t = ctx->bits[0];
+ if ((ctx->bits[0] = t + ((uint32) len << 3)) < t)
+ ctx->bits[1]++; /* Carry from low to high */
+ ctx->bits[1] += len >> 29;
+
+ t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
+
+ /* Handle any leading odd-sized chunks */
+
+ if (t) {
+ unsigned char *p = (unsigned char *) ctx->in + t;
+
+ t = 64 - t;
+ if (len < t) {
+ memmove(p, buf, len);
+ return;
+ }
+ memmove(p, buf, t);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (uint32 *) ctx->in);
+ buf += t;
+ len -= t;
+ }
+ /* Process data in 64-byte chunks */
+
+ while (len >= 64) {
+ memmove(ctx->in, buf, 64);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (uint32 *) ctx->in);
+ buf += 64;
+ len -= 64;
+ }
+
+ /* Handle any remaining bytes of data. */
+
+ memmove(ctx->in, buf, len);
+}
+
+/*
+ * Final wrapup - pad to 64-byte boundary with the bit pattern
+ * 1 0* (64-bit count of bits processed, MSB-first)
+ */
+void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
+{
+ unsigned int count;
+ unsigned char *p;
+
+ /* Compute number of bytes mod 64 */
+ count = (ctx->bits[0] >> 3) & 0x3F;
+
+ /* Set the first char of padding to 0x80. This is safe since there is
+ always at least one byte free */
+ p = ctx->in + count;
+ *p++ = 0x80;
+
+ /* Bytes of padding needed to make 64 bytes */
+ count = 64 - 1 - count;
+
+ /* Pad out to 56 mod 64 */
+ if (count < 8) {
+ /* Two lots of padding: Pad the first block to 64 bytes */
+ memset(p, 0, count);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (uint32 *) ctx->in);
+
+ /* Now fill the next block with 56 bytes */
+ memset(ctx->in, 0, 56);
+ } else {
+ /* Pad block to 56 bytes */
+ memset(p, 0, count - 8);
+ }
+ byteReverse(ctx->in, 14);
+
+ /* Append length in bits and transform */
+ ((uint32 *) ctx->in)[14] = ctx->bits[0];
+ ((uint32 *) ctx->in)[15] = ctx->bits[1];
+
+ MD5Transform(ctx->buf, (uint32 *) ctx->in);
+ byteReverse((unsigned char *) ctx->buf, 4);
+ memmove(digest, ctx->buf, 16);
+ memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */
+}
+
+/* The four core functions - F1 is optimized somewhat */
+
+/* #define F1(x, y, z) (x & y | ~x & z) */
+#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))
+
+/* This is the central step in the MD5 algorithm. */
+#define MD5STEP(f, w, x, y, z, data, s) \
+ ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
+
+/*
+ * The core of the MD5 algorithm, this alters an existing MD5 hash to
+ * reflect the addition of 16 longwords of new data. MD5Update blocks
+ * the data and converts bytes into longwords for this routine.
+ */
+void MD5Transform(uint32 buf[4], uint32 const in[16])
+{
+ register uint32 a, b, c, d;
+
+ a = buf[0];
+ b = buf[1];
+ c = buf[2];
+ d = buf[3];
+
+ MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+ MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+ MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+ MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+ MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+ MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+ MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+ MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+ MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+ MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+ MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+ MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+ MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+ MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+ MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+ MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+ MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+ MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+ MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+ MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+ MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+ MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+ MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+ MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+ MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+ MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+ MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+ MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+ MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+ MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+ MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+ MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+ MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+ MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+ MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+ MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+ MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+ MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+ MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+ MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+ MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+ MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+ MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+ MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+ MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+ MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+ MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+ MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+ MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+ MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+ MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+ MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+ MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+ MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+ MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+ MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+ MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+ MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+ MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+ MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+ MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+ MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+ MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+ MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+ buf[0] += a;
+ buf[1] += b;
+ buf[2] += c;
+ buf[3] += d;
+}
SMB parameters and setup
Copyright (C) Andrew Tridgell 1992-1998
Modified by Jeremy Allison 1995.
+ Copyright (C) Jeremy Allison 1995-2000.
+ Copyright (C) Luke Kennethc Casson Leighton 1996-2000.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
return i;
}
+static int _my_mbstowcsupper(int16 * dst, const uchar * src, int len)
+{
+ int i;
+ int16 val;
+
+ for (i = 0; i < len; i++)
+ {
+ val = toupper(*src);
+ SSVAL(dst, 0, val);
+ dst++;
+ src++;
+ if (val == 0)
+ break;
+ }
+ return i;
+}
+
+
/*
* Creates the MD4 Hash of the users password in NT UNICODE.
*/
memset(passwd, '\0', sizeof(passwd));
}
+/* Does both the NTLMv2 owfs of a user's password */
+void ntv2_owf_gen(const uchar owf[16],
+ const char *user_n, const char *domain_n, uchar kr_buf[16])
+{
+ pstring user_u;
+ pstring dom_u;
+ HMACMD5Context ctx;
+
+ int user_l = strlen(user_n);
+ int domain_l = strlen(domain_n);
+
+ _my_mbstowcsupper((int16 *) user_u, user_n, user_l * 2);
+ _my_mbstowcsupper((int16 *) dom_u, domain_n, domain_l * 2);
+
+ hmac_md5_init_limK_to_64(owf, 16, &ctx);
+ hmac_md5_update(user_u, user_l * 2, &ctx);
+ hmac_md5_update(dom_u, domain_l * 2, &ctx);
+ hmac_md5_final(kr_buf, &ctx);
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(100, ("ntv2_owf_gen: user, domain, owfkey, kr\n"));
+ dump_data(100, user_u, user_l * 2);
+ dump_data(100, dom_u, domain_l * 2);
+ dump_data(100, owf, 16);
+ dump_data(100, kr_buf, 16);
+#endif
+}
+
/* Does the des encryption from the NT or LM MD4 hash. */
-void SMBOWFencrypt(uchar passwd[16], uchar *c8, uchar p24[24])
+void SMBOWFencrypt(const uchar passwd[16], const uchar *c8, uchar p24[24])
{
uchar p21[21];
return True;
}
+/* Does the md5 encryption from the NT hash for NTLMv2. */
+void SMBOWFencrypt_ntv2(const uchar kr[16],
+ const uchar * srv_chal, int srv_chal_len,
+ const uchar * cli_chal, int cli_chal_len,
+ char resp_buf[16])
+{
+ HMACMD5Context ctx;
+
+ hmac_md5_init_limK_to_64(kr, 16, &ctx);
+ hmac_md5_update(srv_chal, srv_chal_len, &ctx);
+ hmac_md5_update(cli_chal, cli_chal_len, &ctx);
+ hmac_md5_final(resp_buf, &ctx);
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(100, ("SMBOWFencrypt_ntv2: srv_chal, cli_chal, resp_buf\n"));
+ dump_data(100, srv_chal, srv_chal_len);
+ dump_data(100, cli_chal, cli_chal_len);
+ dump_data(100, resp_buf, 16);
+#endif
+}
+
+void SMBsesskeygen_ntv2(const uchar kr[16],
+ const uchar * nt_resp, char sess_key[16])
+{
+ HMACMD5Context ctx;
+
+ hmac_md5_init_limK_to_64(kr, 16, &ctx);
+ hmac_md5_update(nt_resp, 16, &ctx);
+ hmac_md5_final(sess_key, &ctx);
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(100, ("SMBsesskeygen_ntv2:\n"));
+ dump_data(100, sess_key, 16);
+#endif
+}
+
+void SMBsesskeygen_ntv1(const uchar kr[16],
+ const uchar * nt_resp, char sess_key[16])
+{
+ mdfour(sess_key, kr, 16);
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(100, ("SMBsesskeygen_ntv1:\n"));
+ dump_data(100, sess_key, 16);
+#endif
+}
+
/***********************************************************
encode a password buffer
************************************************************/
git.samba.org / samba.git / commitdiff