mirror of
https://github.com/moparisthebest/curl
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5f830eaba0
In that case, use libcurl's internal MD4 routine. This fixes tests 1013 and 1014 which were failing due to configure assuming NTLM and SMB were always available whenever mbed TLS was in use (which is now true).
308 lines
9.3 KiB
C
308 lines
9.3 KiB
C
/*
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* This is an OpenSSL-compatible implementation of the RSA Data Security, Inc.
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* MD4 Message-Digest Algorithm (RFC 1320).
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*
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* Homepage:
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http://openwall.info/wiki/people/solar/software/public-domain-source-code/md4
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*
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* Author:
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* Alexander Peslyak, better known as Solar Designer <solar at openwall.com>
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*
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* This software was written by Alexander Peslyak in 2001. No copyright is
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* claimed, and the software is hereby placed in the public domain. In case
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* this attempt to disclaim copyright and place the software in the public
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* domain is deemed null and void, then the software is Copyright (c) 2001
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* Alexander Peslyak and it is hereby released to the general public under the
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* following terms:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted.
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*
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* There's ABSOLUTELY NO WARRANTY, express or implied.
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*
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* (This is a heavily cut-down "BSD license".)
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*
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* This differs from Colin Plumb's older public domain implementation in that
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* no exactly 32-bit integer data type is required (any 32-bit or wider
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* unsigned integer data type will do), there's no compile-time endianness
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* configuration, and the function prototypes match OpenSSL's. No code from
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* Colin Plumb's implementation has been reused; this comment merely compares
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* the properties of the two independent implementations.
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*
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* The primary goals of this implementation are portability and ease of use.
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* It is meant to be fast, but not as fast as possible. Some known
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* optimizations are not included to reduce source code size and avoid
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* compile-time configuration.
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*/
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#include "curl_setup.h"
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/* The NSS, OS/400 and sometimes mbed TLS crypto libraries do not provide the
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* MD4 hash algorithm, so we have a local implementation of it */
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#if defined(USE_NSS) || defined(USE_OS400CRYPTO) || \
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(defined(USE_MBEDTLS) && !defined(MBEDTLS_MD4_C))
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#include "curl_md4.h"
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#include "warnless.h"
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#ifndef HAVE_OPENSSL
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#include <string.h>
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/* Any 32-bit or wider unsigned integer data type will do */
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typedef unsigned int MD4_u32plus;
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typedef struct {
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MD4_u32plus lo, hi;
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MD4_u32plus a, b, c, d;
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unsigned char buffer[64];
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MD4_u32plus block[16];
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} MD4_CTX;
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static void MD4_Init(MD4_CTX *ctx);
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static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size);
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static void MD4_Final(unsigned char *result, MD4_CTX *ctx);
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/*
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* The basic MD4 functions.
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*
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* F and G are optimized compared to their RFC 1320 definitions, with the
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* optimization for F borrowed from Colin Plumb's MD5 implementation.
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*/
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#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
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#define G(x, y, z) (((x) & ((y) | (z))) | ((y) & (z)))
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#define H(x, y, z) ((x) ^ (y) ^ (z))
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/*
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* The MD4 transformation for all three rounds.
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*/
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#define STEP(f, a, b, c, d, x, s) \
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(a) += f((b), (c), (d)) + (x); \
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(a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s))));
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/*
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* SET reads 4 input bytes in little-endian byte order and stores them
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* in a properly aligned word in host byte order.
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*
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* The check for little-endian architectures that tolerate unaligned
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* memory accesses is just an optimization. Nothing will break if it
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* doesn't work.
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*/
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#if defined(__i386__) || defined(__x86_64__) || defined(__vax__)
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#define SET(n) \
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(*(MD4_u32plus *)&ptr[(n) * 4])
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#define GET(n) \
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SET(n)
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#else
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#define SET(n) \
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(ctx->block[(n)] = \
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(MD4_u32plus)ptr[(n) * 4] | \
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((MD4_u32plus)ptr[(n) * 4 + 1] << 8) | \
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((MD4_u32plus)ptr[(n) * 4 + 2] << 16) | \
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((MD4_u32plus)ptr[(n) * 4 + 3] << 24))
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#define GET(n) \
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(ctx->block[(n)])
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#endif
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/*
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* This processes one or more 64-byte data blocks, but does NOT update
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* the bit counters. There are no alignment requirements.
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*/
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static const void *body(MD4_CTX *ctx, const void *data, unsigned long size)
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{
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const unsigned char *ptr;
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MD4_u32plus a, b, c, d;
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MD4_u32plus saved_a, saved_b, saved_c, saved_d;
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ptr = (const unsigned char *)data;
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a = ctx->a;
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b = ctx->b;
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c = ctx->c;
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d = ctx->d;
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do {
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saved_a = a;
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saved_b = b;
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saved_c = c;
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saved_d = d;
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/* Round 1 */
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STEP(F, a, b, c, d, SET(0), 3)
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STEP(F, d, a, b, c, SET(1), 7)
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STEP(F, c, d, a, b, SET(2), 11)
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STEP(F, b, c, d, a, SET(3), 19)
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STEP(F, a, b, c, d, SET(4), 3)
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STEP(F, d, a, b, c, SET(5), 7)
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STEP(F, c, d, a, b, SET(6), 11)
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STEP(F, b, c, d, a, SET(7), 19)
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STEP(F, a, b, c, d, SET(8), 3)
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STEP(F, d, a, b, c, SET(9), 7)
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STEP(F, c, d, a, b, SET(10), 11)
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STEP(F, b, c, d, a, SET(11), 19)
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STEP(F, a, b, c, d, SET(12), 3)
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STEP(F, d, a, b, c, SET(13), 7)
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STEP(F, c, d, a, b, SET(14), 11)
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STEP(F, b, c, d, a, SET(15), 19)
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/* Round 2 */
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STEP(G, a, b, c, d, GET(0) + 0x5a827999, 3)
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STEP(G, d, a, b, c, GET(4) + 0x5a827999, 5)
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STEP(G, c, d, a, b, GET(8) + 0x5a827999, 9)
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STEP(G, b, c, d, a, GET(12) + 0x5a827999, 13)
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STEP(G, a, b, c, d, GET(1) + 0x5a827999, 3)
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STEP(G, d, a, b, c, GET(5) + 0x5a827999, 5)
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STEP(G, c, d, a, b, GET(9) + 0x5a827999, 9)
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STEP(G, b, c, d, a, GET(13) + 0x5a827999, 13)
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STEP(G, a, b, c, d, GET(2) + 0x5a827999, 3)
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STEP(G, d, a, b, c, GET(6) + 0x5a827999, 5)
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STEP(G, c, d, a, b, GET(10) + 0x5a827999, 9)
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STEP(G, b, c, d, a, GET(14) + 0x5a827999, 13)
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STEP(G, a, b, c, d, GET(3) + 0x5a827999, 3)
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STEP(G, d, a, b, c, GET(7) + 0x5a827999, 5)
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STEP(G, c, d, a, b, GET(11) + 0x5a827999, 9)
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STEP(G, b, c, d, a, GET(15) + 0x5a827999, 13)
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/* Round 3 */
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STEP(H, a, b, c, d, GET(0) + 0x6ed9eba1, 3)
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STEP(H, d, a, b, c, GET(8) + 0x6ed9eba1, 9)
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STEP(H, c, d, a, b, GET(4) + 0x6ed9eba1, 11)
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STEP(H, b, c, d, a, GET(12) + 0x6ed9eba1, 15)
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STEP(H, a, b, c, d, GET(2) + 0x6ed9eba1, 3)
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STEP(H, d, a, b, c, GET(10) + 0x6ed9eba1, 9)
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STEP(H, c, d, a, b, GET(6) + 0x6ed9eba1, 11)
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STEP(H, b, c, d, a, GET(14) + 0x6ed9eba1, 15)
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STEP(H, a, b, c, d, GET(1) + 0x6ed9eba1, 3)
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STEP(H, d, a, b, c, GET(9) + 0x6ed9eba1, 9)
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STEP(H, c, d, a, b, GET(5) + 0x6ed9eba1, 11)
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STEP(H, b, c, d, a, GET(13) + 0x6ed9eba1, 15)
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STEP(H, a, b, c, d, GET(3) + 0x6ed9eba1, 3)
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STEP(H, d, a, b, c, GET(11) + 0x6ed9eba1, 9)
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STEP(H, c, d, a, b, GET(7) + 0x6ed9eba1, 11)
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STEP(H, b, c, d, a, GET(15) + 0x6ed9eba1, 15)
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a += saved_a;
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b += saved_b;
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c += saved_c;
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d += saved_d;
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ptr += 64;
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} while(size -= 64);
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ctx->a = a;
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ctx->b = b;
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ctx->c = c;
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ctx->d = d;
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return ptr;
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}
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static void MD4_Init(MD4_CTX *ctx)
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{
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ctx->a = 0x67452301;
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ctx->b = 0xefcdab89;
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ctx->c = 0x98badcfe;
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ctx->d = 0x10325476;
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ctx->lo = 0;
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ctx->hi = 0;
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}
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static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
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{
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MD4_u32plus saved_lo;
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unsigned long used, available;
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saved_lo = ctx->lo;
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ctx->lo = (saved_lo + size) & 0x1fffffff;
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if(ctx->lo < saved_lo)
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ctx->hi++;
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ctx->hi += (MD4_u32plus)size >> 29;
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used = saved_lo & 0x3f;
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if(used) {
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available = 64 - used;
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if(size < available) {
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memcpy(&ctx->buffer[used], data, size);
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return;
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}
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memcpy(&ctx->buffer[used], data, available);
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data = (const unsigned char *)data + available;
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size -= available;
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body(ctx, ctx->buffer, 64);
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}
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if(size >= 64) {
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data = body(ctx, data, size & ~(unsigned long)0x3f);
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size &= 0x3f;
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}
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memcpy(ctx->buffer, data, size);
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}
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static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
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{
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unsigned long used, available;
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used = ctx->lo & 0x3f;
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ctx->buffer[used++] = 0x80;
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available = 64 - used;
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if(available < 8) {
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memset(&ctx->buffer[used], 0, available);
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body(ctx, ctx->buffer, 64);
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used = 0;
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available = 64;
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}
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memset(&ctx->buffer[used], 0, available - 8);
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ctx->lo <<= 3;
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ctx->buffer[56] = curlx_ultouc((ctx->lo)&0xff);
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ctx->buffer[57] = curlx_ultouc((ctx->lo >> 8)&0xff);
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ctx->buffer[58] = curlx_ultouc((ctx->lo >> 16)&0xff);
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ctx->buffer[59] = curlx_ultouc((ctx->lo >> 24)&0xff);
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ctx->buffer[60] = curlx_ultouc((ctx->hi)&0xff);
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ctx->buffer[61] = curlx_ultouc((ctx->hi >> 8)&0xff);
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ctx->buffer[62] = curlx_ultouc((ctx->hi >> 16)&0xff);
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ctx->buffer[63] = curlx_ultouc(ctx->hi >> 24);
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body(ctx, ctx->buffer, 64);
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result[0] = curlx_ultouc((ctx->a)&0xff);
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result[1] = curlx_ultouc((ctx->a >> 8)&0xff);
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result[2] = curlx_ultouc((ctx->a >> 16)&0xff);
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result[3] = curlx_ultouc(ctx->a >> 24);
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result[4] = curlx_ultouc((ctx->b)&0xff);
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result[5] = curlx_ultouc((ctx->b >> 8)&0xff);
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result[6] = curlx_ultouc((ctx->b >> 16)&0xff);
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result[7] = curlx_ultouc(ctx->b >> 24);
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result[8] = curlx_ultouc((ctx->c)&0xff);
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result[9] = curlx_ultouc((ctx->c >> 8)&0xff);
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result[10] = curlx_ultouc((ctx->c >> 16)&0xff);
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result[11] = curlx_ultouc(ctx->c >> 24);
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result[12] = curlx_ultouc((ctx->d)&0xff);
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result[13] = curlx_ultouc((ctx->d >> 8)&0xff);
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result[14] = curlx_ultouc((ctx->d >> 16)&0xff);
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result[15] = curlx_ultouc(ctx->d >> 24);
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memset(ctx, 0, sizeof(*ctx));
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}
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#endif
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void Curl_md4it(unsigned char *output, const unsigned char *input, size_t len)
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{
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MD4_CTX ctx;
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MD4_Init(&ctx);
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MD4_Update(&ctx, input, curlx_uztoui(len));
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MD4_Final(output, &ctx);
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}
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#endif /* defined(USE_NSS) || defined(USE_OS400CRYPTO) ||
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(defined(USE_MBEDTLS) && !defined(MBEDTLS_MD4_C)) */
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