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563 lines
16 KiB
563 lines
16 KiB
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "curl_setup.h"
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#ifndef CURL_DISABLE_CRYPTO_AUTH
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#include <curl/curl.h>
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#include "curl_md5.h"
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#include "curl_hmac.h"
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#include "warnless.h"
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#if defined(USE_GNUTLS_NETTLE)
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#include <nettle/md5.h>
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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typedef struct md5_ctx MD5_CTX;
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static void MD5_Init(MD5_CTX * ctx)
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{
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md5_init(ctx);
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}
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static void MD5_Update(MD5_CTX * ctx,
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const unsigned char * input,
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unsigned int inputLen)
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{
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md5_update(ctx, inputLen, input);
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}
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static void MD5_Final(unsigned char digest[16], MD5_CTX * ctx)
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{
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md5_digest(ctx, 16, digest);
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}
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#elif defined(USE_GNUTLS)
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#include <gcrypt.h>
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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typedef gcry_md_hd_t MD5_CTX;
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static void MD5_Init(MD5_CTX * ctx)
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{
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gcry_md_open(ctx, GCRY_MD_MD5, 0);
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}
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static void MD5_Update(MD5_CTX * ctx,
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const unsigned char * input,
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unsigned int inputLen)
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{
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gcry_md_write(*ctx, input, inputLen);
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}
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static void MD5_Final(unsigned char digest[16], MD5_CTX * ctx)
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{
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memcpy(digest, gcry_md_read(*ctx, 0), 16);
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gcry_md_close(*ctx);
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}
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#elif defined(USE_OPENSSL)
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/* When OpenSSL is available we use the MD5-function from OpenSSL */
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#include <openssl/md5.h>
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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#elif (defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && \
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(__MAC_OS_X_VERSION_MAX_ALLOWED >= 1040)) || \
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(defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && \
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(__IPHONE_OS_VERSION_MAX_ALLOWED >= 20000))
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/* For Apple operating systems: CommonCrypto has the functions we need.
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These functions are available on Tiger and later, as well as iOS 2.0
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and later. If you're building for an older cat, well, sorry.
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Declaring the functions as static like this seems to be a bit more
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reliable than defining COMMON_DIGEST_FOR_OPENSSL on older cats. */
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# include <CommonCrypto/CommonDigest.h>
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# define MD5_CTX CC_MD5_CTX
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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static void MD5_Init(MD5_CTX *ctx)
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{
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CC_MD5_Init(ctx);
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}
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static void MD5_Update(MD5_CTX *ctx,
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const unsigned char *input,
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unsigned int inputLen)
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{
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CC_MD5_Update(ctx, input, inputLen);
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}
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static void MD5_Final(unsigned char digest[16], MD5_CTX *ctx)
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{
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CC_MD5_Final(digest, ctx);
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}
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#elif defined(_WIN32)
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#include <wincrypt.h>
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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typedef struct {
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HCRYPTPROV hCryptProv;
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HCRYPTHASH hHash;
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} MD5_CTX;
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static void MD5_Init(MD5_CTX *ctx)
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{
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if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL,
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PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
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CryptCreateHash(ctx->hCryptProv, CALG_MD5, 0, 0, &ctx->hHash);
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}
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}
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static void MD5_Update(MD5_CTX *ctx,
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const unsigned char *input,
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unsigned int inputLen)
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{
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CryptHashData(ctx->hHash, (unsigned char *)input, inputLen, 0);
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}
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static void MD5_Final(unsigned char digest[16], MD5_CTX *ctx)
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{
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unsigned long length = 0;
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CryptGetHashParam(ctx->hHash, HP_HASHVAL, NULL, &length, 0);
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if(length == 16)
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CryptGetHashParam(ctx->hHash, HP_HASHVAL, digest, &length, 0);
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if(ctx->hHash)
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CryptDestroyHash(ctx->hHash);
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if(ctx->hCryptProv)
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CryptReleaseContext(ctx->hCryptProv, 0);
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}
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#elif defined(USE_AXTLS)
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#include <axTLS/config.h>
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#include <axTLS/os_int.h>
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#include <axTLS/crypto.h>
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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#else
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/* When no other crypto library is available we use this code segment */
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/*
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* This is an OpenSSL-compatible implementation of the RSA Data Security, Inc.
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* MD5 Message-Digest Algorithm (RFC 1321).
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*
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* Homepage:
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http://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
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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.
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* In case this attempt to disclaim copyright and place the software in the
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* public domain is deemed null and void, then the software is
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* Copyright (c) 2001 Alexander Peslyak and it is hereby released to the
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* general public under the 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 <string.h>
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/* The last #include files should be: */
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#include "curl_memory.h"
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#include "memdebug.h"
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/* Any 32-bit or wider unsigned integer data type will do */
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typedef unsigned int MD5_u32plus;
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typedef struct {
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MD5_u32plus lo, hi;
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MD5_u32plus a, b, c, d;
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unsigned char buffer[64];
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MD5_u32plus block[16];
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} MD5_CTX;
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static void MD5_Init(MD5_CTX *ctx);
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static void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size);
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static void MD5_Final(unsigned char *result, MD5_CTX *ctx);
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/*
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* The basic MD5 functions.
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*
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* F and G are optimized compared to their RFC 1321 definitions for
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* architectures that lack an AND-NOT instruction, just like in Colin Plumb's
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* 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) ((y) ^ ((z) & ((x) ^ (y))))
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#define H(x, y, z) (((x) ^ (y)) ^ (z))
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#define H2(x, y, z) ((x) ^ ((y) ^ (z)))
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#define I(x, y, z) ((y) ^ ((x) | ~(z)))
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/*
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* The MD5 transformation for all four rounds.
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*/
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#define STEP(f, a, b, c, d, x, t, s) \
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(a) += f((b), (c), (d)) + (x) + (t); \
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(a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s)))); \
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(a) += (b);
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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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(*(MD5_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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(MD5_u32plus)ptr[(n) * 4] | \
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((MD5_u32plus)ptr[(n) * 4 + 1] << 8) | \
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((MD5_u32plus)ptr[(n) * 4 + 2] << 16) | \
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((MD5_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(MD5_CTX *ctx, const void *data, unsigned long size)
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{
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const unsigned char *ptr;
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MD5_u32plus a, b, c, d;
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MD5_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), 0xd76aa478, 7)
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STEP(F, d, a, b, c, SET(1), 0xe8c7b756, 12)
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STEP(F, c, d, a, b, SET(2), 0x242070db, 17)
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STEP(F, b, c, d, a, SET(3), 0xc1bdceee, 22)
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STEP(F, a, b, c, d, SET(4), 0xf57c0faf, 7)
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STEP(F, d, a, b, c, SET(5), 0x4787c62a, 12)
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STEP(F, c, d, a, b, SET(6), 0xa8304613, 17)
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STEP(F, b, c, d, a, SET(7), 0xfd469501, 22)
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STEP(F, a, b, c, d, SET(8), 0x698098d8, 7)
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STEP(F, d, a, b, c, SET(9), 0x8b44f7af, 12)
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STEP(F, c, d, a, b, SET(10), 0xffff5bb1, 17)
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STEP(F, b, c, d, a, SET(11), 0x895cd7be, 22)
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STEP(F, a, b, c, d, SET(12), 0x6b901122, 7)
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STEP(F, d, a, b, c, SET(13), 0xfd987193, 12)
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STEP(F, c, d, a, b, SET(14), 0xa679438e, 17)
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STEP(F, b, c, d, a, SET(15), 0x49b40821, 22)
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/* Round 2 */
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STEP(G, a, b, c, d, GET(1), 0xf61e2562, 5)
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STEP(G, d, a, b, c, GET(6), 0xc040b340, 9)
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STEP(G, c, d, a, b, GET(11), 0x265e5a51, 14)
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STEP(G, b, c, d, a, GET(0), 0xe9b6c7aa, 20)
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STEP(G, a, b, c, d, GET(5), 0xd62f105d, 5)
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STEP(G, d, a, b, c, GET(10), 0x02441453, 9)
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STEP(G, c, d, a, b, GET(15), 0xd8a1e681, 14)
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STEP(G, b, c, d, a, GET(4), 0xe7d3fbc8, 20)
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STEP(G, a, b, c, d, GET(9), 0x21e1cde6, 5)
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STEP(G, d, a, b, c, GET(14), 0xc33707d6, 9)
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STEP(G, c, d, a, b, GET(3), 0xf4d50d87, 14)
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STEP(G, b, c, d, a, GET(8), 0x455a14ed, 20)
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STEP(G, a, b, c, d, GET(13), 0xa9e3e905, 5)
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STEP(G, d, a, b, c, GET(2), 0xfcefa3f8, 9)
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STEP(G, c, d, a, b, GET(7), 0x676f02d9, 14)
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STEP(G, b, c, d, a, GET(12), 0x8d2a4c8a, 20)
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/* Round 3 */
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STEP(H, a, b, c, d, GET(5), 0xfffa3942, 4)
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STEP(H2, d, a, b, c, GET(8), 0x8771f681, 11)
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STEP(H, c, d, a, b, GET(11), 0x6d9d6122, 16)
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STEP(H2, b, c, d, a, GET(14), 0xfde5380c, 23)
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STEP(H, a, b, c, d, GET(1), 0xa4beea44, 4)
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STEP(H2, d, a, b, c, GET(4), 0x4bdecfa9, 11)
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STEP(H, c, d, a, b, GET(7), 0xf6bb4b60, 16)
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STEP(H2, b, c, d, a, GET(10), 0xbebfbc70, 23)
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STEP(H, a, b, c, d, GET(13), 0x289b7ec6, 4)
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STEP(H2, d, a, b, c, GET(0), 0xeaa127fa, 11)
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STEP(H, c, d, a, b, GET(3), 0xd4ef3085, 16)
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STEP(H2, b, c, d, a, GET(6), 0x04881d05, 23)
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STEP(H, a, b, c, d, GET(9), 0xd9d4d039, 4)
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STEP(H2, d, a, b, c, GET(12), 0xe6db99e5, 11)
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STEP(H, c, d, a, b, GET(15), 0x1fa27cf8, 16)
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STEP(H2, b, c, d, a, GET(2), 0xc4ac5665, 23)
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/* Round 4 */
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STEP(I, a, b, c, d, GET(0), 0xf4292244, 6)
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STEP(I, d, a, b, c, GET(7), 0x432aff97, 10)
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STEP(I, c, d, a, b, GET(14), 0xab9423a7, 15)
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STEP(I, b, c, d, a, GET(5), 0xfc93a039, 21)
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STEP(I, a, b, c, d, GET(12), 0x655b59c3, 6)
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STEP(I, d, a, b, c, GET(3), 0x8f0ccc92, 10)
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STEP(I, c, d, a, b, GET(10), 0xffeff47d, 15)
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STEP(I, b, c, d, a, GET(1), 0x85845dd1, 21)
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STEP(I, a, b, c, d, GET(8), 0x6fa87e4f, 6)
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STEP(I, d, a, b, c, GET(15), 0xfe2ce6e0, 10)
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STEP(I, c, d, a, b, GET(6), 0xa3014314, 15)
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STEP(I, b, c, d, a, GET(13), 0x4e0811a1, 21)
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STEP(I, a, b, c, d, GET(4), 0xf7537e82, 6)
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STEP(I, d, a, b, c, GET(11), 0xbd3af235, 10)
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STEP(I, c, d, a, b, GET(2), 0x2ad7d2bb, 15)
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STEP(I, b, c, d, a, GET(9), 0xeb86d391, 21)
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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 MD5_Init(MD5_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 MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size)
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{
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MD5_u32plus saved_lo;
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unsigned long used, available;
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saved_lo = ctx->lo;
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if((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo)
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ctx->hi++;
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ctx->hi += (MD5_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 MD5_Final(unsigned char *result, MD5_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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|
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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;
|
|
available = 64;
|
|
}
|
|
|
|
memset(&ctx->buffer[used], 0, available - 8);
|
|
|
|
ctx->lo <<= 3;
|
|
ctx->buffer[56] = curlx_ultouc((ctx->lo)&0xff);
|
|
ctx->buffer[57] = curlx_ultouc((ctx->lo >> 8)&0xff);
|
|
ctx->buffer[58] = curlx_ultouc((ctx->lo >> 16)&0xff);
|
|
ctx->buffer[59] = curlx_ultouc(ctx->lo >> 24);
|
|
ctx->buffer[60] = curlx_ultouc((ctx->hi)&0xff);
|
|
ctx->buffer[61] = curlx_ultouc((ctx->hi >> 8)&0xff);
|
|
ctx->buffer[62] = curlx_ultouc((ctx->hi >> 16)&0xff);
|
|
ctx->buffer[63] = curlx_ultouc(ctx->hi >> 24);
|
|
|
|
body(ctx, ctx->buffer, 64);
|
|
|
|
result[0] = curlx_ultouc((ctx->a)&0xff);
|
|
result[1] = curlx_ultouc((ctx->a >> 8)&0xff);
|
|
result[2] = curlx_ultouc((ctx->a >> 16)&0xff);
|
|
result[3] = curlx_ultouc(ctx->a >> 24);
|
|
result[4] = curlx_ultouc((ctx->b)&0xff);
|
|
result[5] = curlx_ultouc((ctx->b >> 8)&0xff);
|
|
result[6] = curlx_ultouc((ctx->b >> 16)&0xff);
|
|
result[7] = curlx_ultouc(ctx->b >> 24);
|
|
result[8] = curlx_ultouc((ctx->c)&0xff);
|
|
result[9] = curlx_ultouc((ctx->c >> 8)&0xff);
|
|
result[10] = curlx_ultouc((ctx->c >> 16)&0xff);
|
|
result[11] = curlx_ultouc(ctx->c >> 24);
|
|
result[12] = curlx_ultouc((ctx->d)&0xff);
|
|
result[13] = curlx_ultouc((ctx->d >> 8)&0xff);
|
|
result[14] = curlx_ultouc((ctx->d >> 16)&0xff);
|
|
result[15] = curlx_ultouc(ctx->d >> 24);
|
|
|
|
memset(ctx, 0, sizeof(*ctx));
|
|
}
|
|
|
|
#endif /* CRYPTO LIBS */
|
|
|
|
const HMAC_params Curl_HMAC_MD5[] = {
|
|
{
|
|
(HMAC_hinit_func) MD5_Init, /* Hash initialization function. */
|
|
(HMAC_hupdate_func) MD5_Update, /* Hash update function. */
|
|
(HMAC_hfinal_func) MD5_Final, /* Hash computation end function. */
|
|
sizeof(MD5_CTX), /* Size of hash context structure. */
|
|
64, /* Maximum key length. */
|
|
16 /* Result size. */
|
|
}
|
|
};
|
|
|
|
const MD5_params Curl_DIGEST_MD5[] = {
|
|
{
|
|
(Curl_MD5_init_func) MD5_Init, /* Digest initialization function */
|
|
(Curl_MD5_update_func) MD5_Update, /* Digest update function */
|
|
(Curl_MD5_final_func) MD5_Final, /* Digest computation end function */
|
|
sizeof(MD5_CTX), /* Size of digest context struct */
|
|
16 /* Result size */
|
|
}
|
|
};
|
|
|
|
/*
|
|
* @unittest: 1601
|
|
*/
|
|
void Curl_md5it(unsigned char *outbuffer, /* 16 bytes */
|
|
const unsigned char *input)
|
|
{
|
|
MD5_CTX ctx;
|
|
MD5_Init(&ctx);
|
|
MD5_Update(&ctx, input, curlx_uztoui(strlen((char *)input)));
|
|
MD5_Final(outbuffer, &ctx);
|
|
}
|
|
|
|
MD5_context *Curl_MD5_init(const MD5_params *md5params)
|
|
{
|
|
MD5_context *ctxt;
|
|
|
|
/* Create MD5 context */
|
|
ctxt = malloc(sizeof *ctxt);
|
|
|
|
if(!ctxt)
|
|
return ctxt;
|
|
|
|
ctxt->md5_hashctx = malloc(md5params->md5_ctxtsize);
|
|
|
|
if(!ctxt->md5_hashctx) {
|
|
free(ctxt);
|
|
return NULL;
|
|
}
|
|
|
|
ctxt->md5_hash = md5params;
|
|
|
|
(*md5params->md5_init_func)(ctxt->md5_hashctx);
|
|
|
|
return ctxt;
|
|
}
|
|
|
|
int Curl_MD5_update(MD5_context *context,
|
|
const unsigned char *data,
|
|
unsigned int len)
|
|
{
|
|
(*context->md5_hash->md5_update_func)(context->md5_hashctx, data, len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int Curl_MD5_final(MD5_context *context, unsigned char *result)
|
|
{
|
|
(*context->md5_hash->md5_final_func)(result, context->md5_hashctx);
|
|
|
|
free(context->md5_hashctx);
|
|
free(context);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CURL_DISABLE_CRYPTO_AUTH */
|