rand_lcl.h revision 296465
1/* crypto/rand/rand_lcl.h */ 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58/* ==================================================================== 59 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in 70 * the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3. All advertising materials mentioning features or use of this 74 * software must display the following acknowledgment: 75 * "This product includes software developed by the OpenSSL Project 76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77 * 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79 * endorse or promote products derived from this software without 80 * prior written permission. For written permission, please contact 81 * openssl-core@openssl.org. 82 * 83 * 5. Products derived from this software may not be called "OpenSSL" 84 * nor may "OpenSSL" appear in their names without prior written 85 * permission of the OpenSSL Project. 86 * 87 * 6. Redistributions of any form whatsoever must retain the following 88 * acknowledgment: 89 * "This product includes software developed by the OpenSSL Project 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91 * 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103 * OF THE POSSIBILITY OF SUCH DAMAGE. 104 * ==================================================================== 105 * 106 * This product includes cryptographic software written by Eric Young 107 * (eay@cryptsoft.com). This product includes software written by Tim 108 * Hudson (tjh@cryptsoft.com). 109 * 110 */ 111 112#ifndef HEADER_RAND_LCL_H 113# define HEADER_RAND_LCL_H 114 115# define ENTROPY_NEEDED 32 /* require 256 bits = 32 bytes of randomness */ 116 117# if !defined(USE_MD5_RAND) && !defined(USE_SHA1_RAND) && !defined(USE_MDC2_RAND) && !defined(USE_MD2_RAND) 118# if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1) 119# define USE_SHA1_RAND 120# elif !defined(OPENSSL_NO_MD5) 121# define USE_MD5_RAND 122# elif !defined(OPENSSL_NO_MDC2) && !defined(OPENSSL_NO_DES) 123# define USE_MDC2_RAND 124# elif !defined(OPENSSL_NO_MD2) 125# define USE_MD2_RAND 126# else 127# error No message digest algorithm available 128# endif 129# endif 130 131# include <openssl/evp.h> 132# define MD_Update(a,b,c) EVP_DigestUpdate(a,b,c) 133# define MD_Final(a,b) EVP_DigestFinal_ex(a,b,NULL) 134# if defined(USE_MD5_RAND) 135# include <openssl/md5.h> 136# define MD_DIGEST_LENGTH MD5_DIGEST_LENGTH 137# define MD_Init(a) EVP_DigestInit_ex(a,EVP_md5(), NULL) 138# define MD(a,b,c) EVP_Digest(a,b,c,NULL,EVP_md5(), NULL) 139# elif defined(USE_SHA1_RAND) 140# include <openssl/sha.h> 141# define MD_DIGEST_LENGTH SHA_DIGEST_LENGTH 142# define MD_Init(a) EVP_DigestInit_ex(a,EVP_sha1(), NULL) 143# define MD(a,b,c) EVP_Digest(a,b,c,NULL,EVP_sha1(), NULL) 144# elif defined(USE_MDC2_RAND) 145# include <openssl/mdc2.h> 146# define MD_DIGEST_LENGTH MDC2_DIGEST_LENGTH 147# define MD_Init(a) EVP_DigestInit_ex(a,EVP_mdc2(), NULL) 148# define MD(a,b,c) EVP_Digest(a,b,c,NULL,EVP_mdc2(), NULL) 149# elif defined(USE_MD2_RAND) 150# include <openssl/md2.h> 151# define MD_DIGEST_LENGTH MD2_DIGEST_LENGTH 152# define MD_Init(a) EVP_DigestInit_ex(a,EVP_md2(), NULL) 153# define MD(a,b,c) EVP_Digest(a,b,c,NULL,EVP_md2(), NULL) 154# endif 155 156# ifndef OPENSSL_NO_ENGINE 157void int_RAND_set_callbacks(int (*set_rand_func) (const RAND_METHOD *meth, 158 const RAND_METHOD **pmeth), 159 const RAND_METHOD *(*get_rand_func) 160 (const RAND_METHOD **pmeth)); 161int eng_RAND_set_rand_method(const RAND_METHOD *meth, 162 const RAND_METHOD **pmeth); 163const RAND_METHOD *eng_RAND_get_rand_method(const RAND_METHOD **pmeth); 164# endif 165 166#endif 167