1 2/* 3 * Copyright (c) 2001-2008 Apple Inc. All rights reserved. 4 * 5 * @APPLE_LICENSE_HEADER_START@ 6 * 7 * This file contains Original Code and/or Modifications of Original Code 8 * as defined in and that are subject to the Apple Public Source License 9 * Version 2.0 (the 'License'). You may not use this file except in 10 * compliance with the License. Please obtain a copy of the License at 11 * http://www.opensource.apple.com/apsl/ and read it before using this 12 * file. 13 * 14 * The Original Code and all software distributed under the License are 15 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 19 * Please see the License for the specific language governing rights and 20 * limitations under the License. 21 * 22 * @APPLE_LICENSE_HEADER_END@ 23 */ 24 25/* 26 * Modification History 27 * 28 * December 10, 2001 Dieter Siegmund (dieter@apple.com) 29 * - created 30 */ 31 32/* 33 * Function: CHAP_md5_hash 34 * Purpose: 35 * Compute the CHAP MD5 hash using the method described in 36 * RFC 1994. 37 */ 38 39#include <stdio.h> 40#include <stdlib.h> 41#include <unistd.h> 42#include <string.h> 43#include <CommonCrypto/CommonDigest.h> 44#include "chap.h" 45 46void 47chap_md5(uint8_t identifier, const uint8_t * password, int password_len, 48 const uint8_t * challenge, int challenge_len, 49 uint8_t * hash) 50{ 51 CC_MD5_CTX ctx; 52 53 /* MD5 hash over the identifier + password + challenge */ 54 CC_MD5_Init(&ctx); 55 CC_MD5_Update(&ctx, &identifier, sizeof(identifier)); 56 CC_MD5_Update(&ctx, password, password_len); 57 CC_MD5_Update(&ctx, challenge, challenge_len); 58 CC_MD5_Final(hash, &ctx); 59 return; 60} 61