dsagen.c revision 55714
155714Skris/* crypto/dsa/dsagen.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 855714Skris * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1555714Skris * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 2255714Skris * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 3755714Skris * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 4055714Skris * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 5255714Skris * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include <openssl/dsa.h> 6155714Skris 6255714Skris#define TEST 6355714Skris#define GENUINE_DSA 6455714Skris 6555714Skris#ifdef GENUINE_DSA 6655714Skris#define LAST_VALUE 0xbd 6755714Skris#else 6855714Skris#define LAST_VALUE 0xd3 6955714Skris#endif 7055714Skris 7155714Skris#ifdef TEST 7255714Skrisunsigned char seed[20]={ 7355714Skris 0xd5,0x01,0x4e,0x4b, 7455714Skris 0x60,0xef,0x2b,0xa8, 7555714Skris 0xb6,0x21,0x1b,0x40, 7655714Skris 0x62,0xba,0x32,0x24, 7755714Skris 0xe0,0x42,0x7d,LAST_VALUE}; 7855714Skris#endif 7955714Skris 8055714Skrisint cb(int p, int n) 8155714Skris { 8255714Skris char c='*'; 8355714Skris 8455714Skris if (p == 0) c='.'; 8555714Skris if (p == 1) c='+'; 8655714Skris if (p == 2) c='*'; 8755714Skris if (p == 3) c='\n'; 8855714Skris printf("%c",c); 8955714Skris fflush(stdout); 9055714Skris } 9155714Skris 9255714Skrismain() 9355714Skris { 9455714Skris int i; 9555714Skris BIGNUM *n; 9655714Skris BN_CTX *ctx; 9755714Skris unsigned char seed_buf[20]; 9855714Skris DSA *dsa; 9955714Skris int counter,h; 10055714Skris BIO *bio_err=NULL; 10155714Skris 10255714Skris if (bio_err == NULL) 10355714Skris bio_err=BIO_new_fp(stderr,BIO_NOCLOSE); 10455714Skris 10555714Skris memcpy(seed_buf,seed,20); 10655714Skris dsa=DSA_generate_parameters(1024,seed,20,&counter,&h,cb); 10755714Skris 10855714Skris if (dsa == NULL) 10955714Skris DSA_print(bio_err,dsa,0); 11055714Skris } 11155714Skris 112