Index: net/http/md4.cc |
=================================================================== |
--- net/http/md4.cc (revision 0) |
+++ net/http/md4.cc (revision 0) |
@@ -0,0 +1,184 @@ |
+// This is mozilla/security/manager/ssl/src/md4.c, CVS rev. 1.1, with trivial |
+// changes to port it to our source tree. |
+// |
+// WARNING: MD4 is cryptographically weak. Do not use MD4 except in NTLM |
+// authentication. |
+ |
+/* vim:set ts=2 sw=2 et cindent: */ |
+/* ***** BEGIN LICENSE BLOCK ***** |
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
+ * |
+ * The contents of this file are subject to the Mozilla Public License Version |
+ * 1.1 (the "License"); you may not use this file except in compliance with |
+ * the License. You may obtain a copy of the License at |
+ * http://www.mozilla.org/MPL/ |
+ * |
+ * Software distributed under the License is distributed on an "AS IS" basis, |
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
+ * for the specific language governing rights and limitations under the |
+ * License. |
+ * |
+ * The Original Code is Mozilla. |
+ * |
+ * The Initial Developer of the Original Code is IBM Corporation. |
+ * Portions created by IBM Corporation are Copyright (C) 2003 |
+ * IBM Corporation. All Rights Reserved. |
+ * |
+ * Contributor(s): |
+ * Darin Fisher <darin@meer.net> |
+ * |
+ * Alternatively, the contents of this file may be used under the terms of |
+ * either the GNU General Public License Version 2 or later (the "GPL"), or |
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
+ * in which case the provisions of the GPL or the LGPL are applicable instead |
+ * of those above. If you wish to allow use of your version of this file only |
+ * under the terms of either the GPL or the LGPL, and not to allow others to |
+ * use your version of this file under the terms of the MPL, indicate your |
+ * decision by deleting the provisions above and replace them with the notice |
+ * and other provisions required by the GPL or the LGPL. If you do not delete |
+ * the provisions above, a recipient may use your version of this file under |
+ * the terms of any one of the MPL, the GPL or the LGPL. |
+ * |
+ * ***** END LICENSE BLOCK ***** */ |
+ |
+/* |
+ * "clean room" MD4 implementation (see RFC 1320) |
+ */ |
+ |
+#include "net/http/md4.h" |
+ |
+#include <string.h> |
+ |
+typedef uint32 Uint32; |
+typedef uint8 Uint8; |
+ |
+/* the "conditional" function */ |
+#define F(x,y,z) (((x) & (y)) | (~(x) & (z))) |
+ |
+/* the "majority" function */ |
+#define G(x,y,z) (((x) & (y)) | ((x) & (z)) | ((y) & (z))) |
+ |
+/* the "parity" function */ |
+#define H(x,y,z) ((x) ^ (y) ^ (z)) |
+ |
+/* rotate n-bits to the left */ |
+#define ROTL(x,n) (((x) << (n)) | ((x) >> (0x20 - n))) |
+ |
+/* round 1: [abcd k s]: a = (a + F(b,c,d) + X[k]) <<< s */ |
+#define RD1(a,b,c,d,k,s) a += F(b,c,d) + X[k]; a = ROTL(a,s) |
+ |
+/* round 2: [abcd k s]: a = (a + G(b,c,d) + X[k] + MAGIC) <<< s */ |
+#define RD2(a,b,c,d,k,s) a += G(b,c,d) + X[k] + 0x5A827999; a = ROTL(a,s) |
+ |
+/* round 3: [abcd k s]: a = (a + H(b,c,d) + X[k] + MAGIC) <<< s */ |
+#define RD3(a,b,c,d,k,s) a += H(b,c,d) + X[k] + 0x6ED9EBA1; a = ROTL(a,s) |
+ |
+/* converts from word array to byte array, len is number of bytes */ |
+static void w2b(Uint8 *out, const Uint32 *in, Uint32 len) |
+{ |
+ Uint8 *bp; const Uint32 *wp, *wpend; |
+ |
+ bp = out; |
+ wp = in; |
+ wpend = wp + (len >> 2); |
+ |
+ for (; wp != wpend; ++wp, bp += 4) |
+ { |
+ bp[0] = (Uint8) ((*wp ) & 0xFF); |
+ bp[1] = (Uint8) ((*wp >> 8) & 0xFF); |
+ bp[2] = (Uint8) ((*wp >> 16) & 0xFF); |
+ bp[3] = (Uint8) ((*wp >> 24) & 0xFF); |
+ } |
+} |
+ |
+/* converts from byte array to word array, len is number of bytes */ |
+static void b2w(Uint32 *out, const Uint8 *in, Uint32 len) |
+{ |
+ Uint32 *wp; const Uint8 *bp, *bpend; |
+ |
+ wp = out; |
+ bp = in; |
+ bpend = in + len; |
+ |
+ for (; bp != bpend; bp += 4, ++wp) |
+ { |
+ *wp = (Uint32) (bp[0] ) | |
+ (Uint32) (bp[1] << 8) | |
+ (Uint32) (bp[2] << 16) | |
+ (Uint32) (bp[3] << 24); |
+ } |
+} |
+ |
+/* update state: data is 64 bytes in length */ |
+static void md4step(Uint32 state[4], const Uint8 *data) |
+{ |
+ Uint32 A, B, C, D, X[16]; |
+ |
+ b2w(X, data, 64); |
+ |
+ A = state[0]; |
+ B = state[1]; |
+ C = state[2]; |
+ D = state[3]; |
+ |
+ RD1(A,B,C,D, 0,3); RD1(D,A,B,C, 1,7); RD1(C,D,A,B, 2,11); RD1(B,C,D,A, 3,19); |
+ RD1(A,B,C,D, 4,3); RD1(D,A,B,C, 5,7); RD1(C,D,A,B, 6,11); RD1(B,C,D,A, 7,19); |
+ RD1(A,B,C,D, 8,3); RD1(D,A,B,C, 9,7); RD1(C,D,A,B,10,11); RD1(B,C,D,A,11,19); |
+ RD1(A,B,C,D,12,3); RD1(D,A,B,C,13,7); RD1(C,D,A,B,14,11); RD1(B,C,D,A,15,19); |
+ |
+ RD2(A,B,C,D, 0,3); RD2(D,A,B,C, 4,5); RD2(C,D,A,B, 8, 9); RD2(B,C,D,A,12,13); |
+ RD2(A,B,C,D, 1,3); RD2(D,A,B,C, 5,5); RD2(C,D,A,B, 9, 9); RD2(B,C,D,A,13,13); |
+ RD2(A,B,C,D, 2,3); RD2(D,A,B,C, 6,5); RD2(C,D,A,B,10, 9); RD2(B,C,D,A,14,13); |
+ RD2(A,B,C,D, 3,3); RD2(D,A,B,C, 7,5); RD2(C,D,A,B,11, 9); RD2(B,C,D,A,15,13); |
+ |
+ RD3(A,B,C,D, 0,3); RD3(D,A,B,C, 8,9); RD3(C,D,A,B, 4,11); RD3(B,C,D,A,12,15); |
+ RD3(A,B,C,D, 2,3); RD3(D,A,B,C,10,9); RD3(C,D,A,B, 6,11); RD3(B,C,D,A,14,15); |
+ RD3(A,B,C,D, 1,3); RD3(D,A,B,C, 9,9); RD3(C,D,A,B, 5,11); RD3(B,C,D,A,13,15); |
+ RD3(A,B,C,D, 3,3); RD3(D,A,B,C,11,9); RD3(C,D,A,B, 7,11); RD3(B,C,D,A,15,15); |
+ |
+ state[0] += A; |
+ state[1] += B; |
+ state[2] += C; |
+ state[3] += D; |
+} |
+ |
+namespace net { |
+namespace weak_crypto { |
+ |
+void MD4Sum(const Uint8 *input, Uint32 inputLen, Uint8 *result) |
+{ |
+ Uint8 final[128]; |
+ Uint32 i, n, m, state[4]; |
+ |
+ /* magic initial states */ |
+ state[0] = 0x67452301; |
+ state[1] = 0xEFCDAB89; |
+ state[2] = 0x98BADCFE; |
+ state[3] = 0x10325476; |
+ |
+ /* compute number of complete 64-byte segments contained in input */ |
+ m = inputLen >> 6; |
+ |
+ /* digest first m segments */ |
+ for (i=0; i<m; ++i) |
+ md4step(state, (input + (i << 6))); |
+ |
+ /* build final buffer */ |
+ n = inputLen % 64; |
+ memcpy(final, input + (m << 6), n); |
+ final[n] = 0x80; |
+ memset(final + n + 1, 0, 120 - (n + 1)); |
+ |
+ inputLen = inputLen << 3; |
+ w2b(final + (n >= 56 ? 120 : 56), &inputLen, 4); |
+ |
+ md4step(state, final); |
+ if (n >= 56) |
+ md4step(state, final + 64); |
+ |
+ /* copy state to result */ |
+ w2b(result, state, 16); |
+} |
+ |
+} // namespace net::weak_crypto |
+} // namespace net |
Property changes on: net\http\md4.cc |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |