Readd MD4.
Sadly this is needed by wpa_supplicant for NTLM hashes.
Change-Id: I1c362c676a11ee01f301ff6fbd33d0669396ea23
Reviewed-on: https://boringssl-review.googlesource.com/1620
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/crypto/md4/md4.c b/crypto/md4/md4.c
new file mode 100644
index 0000000..8e86945
--- /dev/null
+++ b/crypto/md4/md4.c
@@ -0,0 +1,222 @@
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/md4.h>
+
+
+/* Implemented from RFC1186 The MD4 Message-Digest Algorithm. */
+
+int MD4_Init(MD4_CTX *md4) {
+ memset(md4, 0, sizeof(MD4_CTX));
+ md4->A = 0x67452301UL;
+ md4->B = 0xefcdab89UL;
+ md4->C = 0x98badcfeUL;
+ md4->D = 0x10325476UL;
+ return 1;
+}
+
+void md4_block_data_order (MD4_CTX *md4, const void *p, size_t num);
+
+#define DATA_ORDER_IS_LITTLE_ENDIAN
+
+#define HASH_LONG uint32_t
+#define HASH_CTX MD4_CTX
+#define HASH_CBLOCK 64
+#define HASH_UPDATE MD4_Update
+#define HASH_TRANSFORM MD4_Transform
+#define HASH_FINAL MD4_Final
+#define HASH_MAKE_STRING(c, s) \
+ do { \
+ unsigned long ll; \
+ ll = (c)->A; \
+ (void) HOST_l2c(ll, (s)); \
+ ll = (c)->B; \
+ (void) HOST_l2c(ll, (s)); \
+ ll = (c)->C; \
+ (void) HOST_l2c(ll, (s)); \
+ ll = (c)->D; \
+ (void) HOST_l2c(ll, (s)); \
+ } while (0)
+#define HASH_BLOCK_DATA_ORDER md4_block_data_order
+
+#include "../digest/md32_common.h"
+
+/* As pointed out by Wei Dai <weidai@eskimo.com>, the above can be
+ * simplified to the code below. Wei attributes these optimizations
+ * to Peter Gutmann's SHS code, and he attributes it to Rich Schroeppel. */
+#define F(b, c, d) ((((c) ^ (d)) & (b)) ^ (d))
+#define G(b, c, d) (((b) & (c)) | ((b) & (d)) | ((c) & (d)))
+#define H(b, c, d) ((b) ^ (c) ^ (d))
+
+#define R0(a, b, c, d, k, s, t) \
+ { \
+ a += ((k) + (t)+F((b), (c), (d))); \
+ a = ROTATE(a, s); \
+ };
+
+#define R1(a, b, c, d, k, s, t) \
+ { \
+ a += ((k) + (t)+G((b), (c), (d))); \
+ a = ROTATE(a, s); \
+ };
+
+#define R2(a, b, c, d, k, s, t) \
+ { \
+ a += ((k) + (t)+H((b), (c), (d))); \
+ a = ROTATE(a, s); \
+ };
+
+void md4_block_data_order(MD4_CTX *c, const void *data_, size_t num) {
+ const uint8_t *data = data_;
+ uint32_t A, B, C, D, l;
+ uint32_t X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13, X14, X15;
+
+ A = c->A;
+ B = c->B;
+ C = c->C;
+ D = c->D;
+
+ for (; num--;) {
+ HOST_c2l(data, l);
+ X0 = l;
+ HOST_c2l(data, l);
+ X1 = l;
+ /* Round 0 */
+ R0(A, B, C, D, X0, 3, 0);
+ HOST_c2l(data, l);
+ X2 = l;
+ R0(D, A, B, C, X1, 7, 0);
+ HOST_c2l(data, l);
+ X3 = l;
+ R0(C, D, A, B, X2, 11, 0);
+ HOST_c2l(data, l);
+ X4 = l;
+ R0(B, C, D, A, X3, 19, 0);
+ HOST_c2l(data, l);
+ X5 = l;
+ R0(A, B, C, D, X4, 3, 0);
+ HOST_c2l(data, l);
+ X6 = l;
+ R0(D, A, B, C, X5, 7, 0);
+ HOST_c2l(data, l);
+ X7 = l;
+ R0(C, D, A, B, X6, 11, 0);
+ HOST_c2l(data, l);
+ X8 = l;
+ R0(B, C, D, A, X7, 19, 0);
+ HOST_c2l(data, l);
+ X9 = l;
+ R0(A, B, C, D, X8, 3, 0);
+ HOST_c2l(data, l);
+ X10 = l;
+ R0(D, A, B, C, X9, 7, 0);
+ HOST_c2l(data, l);
+ X11 = l;
+ R0(C, D, A, B, X10, 11, 0);
+ HOST_c2l(data, l);
+ X12 = l;
+ R0(B, C, D, A, X11, 19, 0);
+ HOST_c2l(data, l);
+ X13 = l;
+ R0(A, B, C, D, X12, 3, 0);
+ HOST_c2l(data, l);
+ X14 = l;
+ R0(D, A, B, C, X13, 7, 0);
+ HOST_c2l(data, l);
+ X15 = l;
+ R0(C, D, A, B, X14, 11, 0);
+ R0(B, C, D, A, X15, 19, 0);
+ /* Round 1 */
+ R1(A, B, C, D, X0, 3, 0x5A827999L);
+ R1(D, A, B, C, X4, 5, 0x5A827999L);
+ R1(C, D, A, B, X8, 9, 0x5A827999L);
+ R1(B, C, D, A, X12, 13, 0x5A827999L);
+ R1(A, B, C, D, X1, 3, 0x5A827999L);
+ R1(D, A, B, C, X5, 5, 0x5A827999L);
+ R1(C, D, A, B, X9, 9, 0x5A827999L);
+ R1(B, C, D, A, X13, 13, 0x5A827999L);
+ R1(A, B, C, D, X2, 3, 0x5A827999L);
+ R1(D, A, B, C, X6, 5, 0x5A827999L);
+ R1(C, D, A, B, X10, 9, 0x5A827999L);
+ R1(B, C, D, A, X14, 13, 0x5A827999L);
+ R1(A, B, C, D, X3, 3, 0x5A827999L);
+ R1(D, A, B, C, X7, 5, 0x5A827999L);
+ R1(C, D, A, B, X11, 9, 0x5A827999L);
+ R1(B, C, D, A, X15, 13, 0x5A827999L);
+ /* Round 2 */
+ R2(A, B, C, D, X0, 3, 0x6ED9EBA1L);
+ R2(D, A, B, C, X8, 9, 0x6ED9EBA1L);
+ R2(C, D, A, B, X4, 11, 0x6ED9EBA1L);
+ R2(B, C, D, A, X12, 15, 0x6ED9EBA1L);
+ R2(A, B, C, D, X2, 3, 0x6ED9EBA1L);
+ R2(D, A, B, C, X10, 9, 0x6ED9EBA1L);
+ R2(C, D, A, B, X6, 11, 0x6ED9EBA1L);
+ R2(B, C, D, A, X14, 15, 0x6ED9EBA1L);
+ R2(A, B, C, D, X1, 3, 0x6ED9EBA1L);
+ R2(D, A, B, C, X9, 9, 0x6ED9EBA1L);
+ R2(C, D, A, B, X5, 11, 0x6ED9EBA1L);
+ R2(B, C, D, A, X13, 15, 0x6ED9EBA1L);
+ R2(A, B, C, D, X3, 3, 0x6ED9EBA1L);
+ R2(D, A, B, C, X11, 9, 0x6ED9EBA1L);
+ R2(C, D, A, B, X7, 11, 0x6ED9EBA1L);
+ R2(B, C, D, A, X15, 15, 0x6ED9EBA1L);
+
+ A = c->A += A;
+ B = c->B += B;
+ C = c->C += C;
+ D = c->D += D;
+ }
+}
