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authorJelmer Vernooij <jelmer@samba.org>2008-09-24 15:30:23 +0200
committerJelmer Vernooij <jelmer@samba.org>2008-09-24 15:30:23 +0200
commit6925202bdee75d191bb5743659c53155ba1605ea (patch)
tree2a5c61b4ee46e66f637ebbe765b0eb8c07fbef0f /source4/lib/crypto/md4.c
parent1ca2e4b99fadac78fd9c58ea9ec9973f19659203 (diff)
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Move source4/lib/crypto to lib/crypto.
Diffstat (limited to 'source4/lib/crypto/md4.c')
-rw-r--r--source4/lib/crypto/md4.c176
1 files changed, 0 insertions, 176 deletions
diff --git a/source4/lib/crypto/md4.c b/source4/lib/crypto/md4.c
deleted file mode 100644
index 7ad93ce786..0000000000
--- a/source4/lib/crypto/md4.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
- a implementation of MD4 designed for use in the SMB authentication protocol
- Copyright (C) Andrew Tridgell 1997-1998.
-
- 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 3 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, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-
-/* NOTE: This code makes no attempt to be fast!
-
- It assumes that a int is at least 32 bits long
-*/
-
-struct mdfour_state {
- uint32_t A, B, C, D;
-};
-
-static uint32_t F(uint32_t X, uint32_t Y, uint32_t Z)
-{
- return (X&Y) | ((~X)&Z);
-}
-
-static uint32_t G(uint32_t X, uint32_t Y, uint32_t Z)
-{
- return (X&Y) | (X&Z) | (Y&Z);
-}
-
-static uint32_t H(uint32_t X, uint32_t Y, uint32_t Z)
-{
- return X^Y^Z;
-}
-
-static uint32_t lshift(uint32_t x, int s)
-{
- x &= 0xFFFFFFFF;
- return ((x<<s)&0xFFFFFFFF) | (x>>(32-s));
-}
-
-#define ROUND1(a,b,c,d,k,s) a = lshift(a + F(b,c,d) + X[k], s)
-#define ROUND2(a,b,c,d,k,s) a = lshift(a + G(b,c,d) + X[k] + (uint32_t)0x5A827999,s)
-#define ROUND3(a,b,c,d,k,s) a = lshift(a + H(b,c,d) + X[k] + (uint32_t)0x6ED9EBA1,s)
-
-/* this applies md4 to 64 byte chunks */
-static void mdfour64(struct mdfour_state *s, uint32_t *M)
-{
- int j;
- uint32_t AA, BB, CC, DD;
- uint32_t X[16];
-
- for (j=0;j<16;j++)
- X[j] = M[j];
-
- AA = s->A; BB = s->B; CC = s->C; DD = s->D;
-
- ROUND1(s->A,s->B,s->C,s->D, 0, 3); ROUND1(s->D,s->A,s->B,s->C, 1, 7);
- ROUND1(s->C,s->D,s->A,s->B, 2, 11); ROUND1(s->B,s->C,s->D,s->A, 3, 19);
- ROUND1(s->A,s->B,s->C,s->D, 4, 3); ROUND1(s->D,s->A,s->B,s->C, 5, 7);
- ROUND1(s->C,s->D,s->A,s->B, 6, 11); ROUND1(s->B,s->C,s->D,s->A, 7, 19);
- ROUND1(s->A,s->B,s->C,s->D, 8, 3); ROUND1(s->D,s->A,s->B,s->C, 9, 7);
- ROUND1(s->C,s->D,s->A,s->B, 10, 11); ROUND1(s->B,s->C,s->D,s->A, 11, 19);
- ROUND1(s->A,s->B,s->C,s->D, 12, 3); ROUND1(s->D,s->A,s->B,s->C, 13, 7);
- ROUND1(s->C,s->D,s->A,s->B, 14, 11); ROUND1(s->B,s->C,s->D,s->A, 15, 19);
-
- ROUND2(s->A,s->B,s->C,s->D, 0, 3); ROUND2(s->D,s->A,s->B,s->C, 4, 5);
- ROUND2(s->C,s->D,s->A,s->B, 8, 9); ROUND2(s->B,s->C,s->D,s->A, 12, 13);
- ROUND2(s->A,s->B,s->C,s->D, 1, 3); ROUND2(s->D,s->A,s->B,s->C, 5, 5);
- ROUND2(s->C,s->D,s->A,s->B, 9, 9); ROUND2(s->B,s->C,s->D,s->A, 13, 13);
- ROUND2(s->A,s->B,s->C,s->D, 2, 3); ROUND2(s->D,s->A,s->B,s->C, 6, 5);
- ROUND2(s->C,s->D,s->A,s->B, 10, 9); ROUND2(s->B,s->C,s->D,s->A, 14, 13);
- ROUND2(s->A,s->B,s->C,s->D, 3, 3); ROUND2(s->D,s->A,s->B,s->C, 7, 5);
- ROUND2(s->C,s->D,s->A,s->B, 11, 9); ROUND2(s->B,s->C,s->D,s->A, 15, 13);
-
- ROUND3(s->A,s->B,s->C,s->D, 0, 3); ROUND3(s->D,s->A,s->B,s->C, 8, 9);
- ROUND3(s->C,s->D,s->A,s->B, 4, 11); ROUND3(s->B,s->C,s->D,s->A, 12, 15);
- ROUND3(s->A,s->B,s->C,s->D, 2, 3); ROUND3(s->D,s->A,s->B,s->C, 10, 9);
- ROUND3(s->C,s->D,s->A,s->B, 6, 11); ROUND3(s->B,s->C,s->D,s->A, 14, 15);
- ROUND3(s->A,s->B,s->C,s->D, 1, 3); ROUND3(s->D,s->A,s->B,s->C, 9, 9);
- ROUND3(s->C,s->D,s->A,s->B, 5, 11); ROUND3(s->B,s->C,s->D,s->A, 13, 15);
- ROUND3(s->A,s->B,s->C,s->D, 3, 3); ROUND3(s->D,s->A,s->B,s->C, 11, 9);
- ROUND3(s->C,s->D,s->A,s->B, 7, 11); ROUND3(s->B,s->C,s->D,s->A, 15, 15);
-
- s->A += AA;
- s->B += BB;
- s->C += CC;
- s->D += DD;
-
- s->A &= 0xFFFFFFFF;
- s->B &= 0xFFFFFFFF;
- s->C &= 0xFFFFFFFF;
- s->D &= 0xFFFFFFFF;
-
- for (j=0;j<16;j++)
- X[j] = 0;
-}
-
-static void copy64(uint32_t *M, const uint8_t *in)
-{
- int i;
-
- for (i=0;i<16;i++)
- M[i] = (in[i*4+3]<<24) | (in[i*4+2]<<16) |
- (in[i*4+1]<<8) | (in[i*4+0]<<0);
-}
-
-static void copy4(uint8_t *out, uint32_t x)
-{
- out[0] = x&0xFF;
- out[1] = (x>>8)&0xFF;
- out[2] = (x>>16)&0xFF;
- out[3] = (x>>24)&0xFF;
-}
-
-/**
- * produce a md4 message digest from data of length n bytes
- */
-_PUBLIC_ void mdfour(uint8_t *out, const uint8_t *in, int n)
-{
- uint8_t buf[128];
- uint32_t M[16];
- uint32_t b = n * 8;
- int i;
- struct mdfour_state state;
-
- state.A = 0x67452301;
- state.B = 0xefcdab89;
- state.C = 0x98badcfe;
- state.D = 0x10325476;
-
- while (n > 64) {
- copy64(M, in);
- mdfour64(&state, M);
- in += 64;
- n -= 64;
- }
-
- for (i=0;i<128;i++)
- buf[i] = 0;
- memcpy(buf, in, n);
- buf[n] = 0x80;
-
- if (n <= 55) {
- copy4(buf+56, b);
- copy64(M, buf);
- mdfour64(&state, M);
- } else {
- copy4(buf+120, b);
- copy64(M, buf);
- mdfour64(&state, M);
- copy64(M, buf+64);
- mdfour64(&state, M);
- }
-
- for (i=0;i<128;i++)
- buf[i] = 0;
- copy64(M, buf);
-
- copy4(out, state.A);
- copy4(out+4, state.B);
- copy4(out+8, state.C);
- copy4(out+12, state.D);
-}
-
-