/* * Copyright (c) 2001-2002 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Modification History * * December 10, 2001 Dieter Siegmund (dieter@apple.com) * - created */ /* * Function: CHAP_md5_hash * Purpose: * Compute the CHAP MD5 hash using the method described in * RFC 1994. */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <openssl/md5.h> #include "chap.h" void chap_md5(uint8_t identifier, const uint8_t * password, int password_len, const uint8_t * challenge, int challenge_len, uint8_t * hash) { int len; uint8_t * offset; uint8_t * value = NULL; /* MD5 hash over the identifier + password + challenge */ len = 1 + password_len + challenge_len; value = malloc(len); if (value == NULL) { return; } offset = value; *offset = identifier; offset += 1; bcopy(password, offset, password_len); offset += password_len; bcopy(challenge, offset, challenge_len); MD5(value, len, hash); free(value); return; }