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Diffstat (limited to 'apps/dsaparam.c')
| -rw-r--r-- | apps/dsaparam.c | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/apps/dsaparam.c b/apps/dsaparam.c new file mode 100644 index 0000000000..e9485c0036 --- /dev/null +++ b/apps/dsaparam.c @@ -0,0 +1,340 @@ +/* apps/dsaparam.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <string.h> +#include "apps.h" +#include "bio.h" +#include "err.h" +#include "bn.h" +#include "rand.h" +#include "dsa.h" +#include "x509.h" +#include "pem.h" + +#undef PROG +#define PROG dsaparam_main + +/* -inform arg - input format - default PEM (one of DER, TXT or PEM) + * -outform arg - output format - default PEM + * -in arg - input file - default stdin + * -out arg - output file - default stdout + * -noout + * -text + * -C + * -noout + */ + +#ifndef NOPROTO +static void MS_CALLBACK dsa_cb(int p, int n); +#else +static void MS_CALLBACK dsa_cb(); +#endif + +int MAIN(argc, argv) +int argc; +char **argv; + { + DSA *dsa=NULL; + int i,badops=0,text=0; + BIO *in=NULL,*out=NULL; + int informat,outformat,noout=0,C=0,ret=1; + char *infile,*outfile,*prog,*inrand=NULL; + int numbits= -1,num; + char buffer[200],*randfile=NULL; + + apps_startup(); + + if (bio_err == NULL) + if ((bio_err=BIO_new(BIO_s_file())) != NULL) + BIO_set_fp(bio_err,stderr,BIO_NOCLOSE); + + infile=NULL; + outfile=NULL; + informat=FORMAT_PEM; + outformat=FORMAT_PEM; + + prog=argv[0]; + argc--; + argv++; + while (argc >= 1) + { + if (strcmp(*argv,"-inform") == 0) + { + if (--argc < 1) goto bad; + informat=str2fmt(*(++argv)); + } + else if (strcmp(*argv,"-outform") == 0) + { + if (--argc < 1) goto bad; + outformat=str2fmt(*(++argv)); + } + else if (strcmp(*argv,"-in") == 0) + { + if (--argc < 1) goto bad; + infile= *(++argv); + } + else if (strcmp(*argv,"-out") == 0) + { + if (--argc < 1) goto bad; + outfile= *(++argv); + } + else if (strcmp(*argv,"-text") == 0) + text=1; + else if (strcmp(*argv,"-C") == 0) + C=1; + else if (strcmp(*argv,"-rand") == 0) + { + if (--argc < 1) goto bad; + inrand= *(++argv); + } + else if (strcmp(*argv,"-noout") == 0) + noout=1; + else if (sscanf(*argv,"%d",&num) == 1) + { + /* generate a key */ + numbits=num; + } + else + { + BIO_printf(bio_err,"unknown option %s\n",*argv); + badops=1; + break; + } + argc--; + argv++; + } + + if (badops) + { +bad: + BIO_printf(bio_err,"%s [options] [bits] <infile >outfile\n",prog); + BIO_printf(bio_err,"where options are\n"); + BIO_printf(bio_err," -inform arg input format - one of DER TXT PEM\n"); + BIO_printf(bio_err," -outform arg output format - one of DER TXT PEM\n"); + BIO_printf(bio_err," -in arg inout file\n"); + BIO_printf(bio_err," -out arg output file\n"); + BIO_printf(bio_err," -text check the DSA parameters\n"); + BIO_printf(bio_err," -C Output C code\n"); + BIO_printf(bio_err," -noout no output\n"); + BIO_printf(bio_err," -rand files to use for random number input\n"); + BIO_printf(bio_err," number number of bits to use for generating private key\n"); + goto end; + } + + ERR_load_crypto_strings(); + + in=BIO_new(BIO_s_file()); + out=BIO_new(BIO_s_file()); + if ((in == NULL) || (out == NULL)) + { + ERR_print_errors(bio_err); + goto end; + } + + if (infile == NULL) + BIO_set_fp(in,stdin,BIO_NOCLOSE); + else + { + if (BIO_read_filename(in,infile) <= 0) + { + perror(infile); + goto end; + } + } + if (outfile == NULL) + BIO_set_fp(out,stdout,BIO_NOCLOSE); + else + { + if (BIO_write_filename(out,outfile) <= 0) + { + perror(outfile); + goto end; + } + } + + if (numbits > 0) + { + randfile=RAND_file_name(buffer,200); + RAND_load_file(randfile,1024L*1024L); + + BIO_printf(bio_err,"Generating DSA parameters, %d bit long prime\n",num); + BIO_printf(bio_err,"This could take some time\n"); + dsa=DSA_generate_parameters(num,NULL,0,NULL,NULL,dsa_cb); + } + else if (informat == FORMAT_ASN1) + dsa=d2i_DSAparams_bio(in,NULL); + else if (informat == FORMAT_PEM) + dsa=PEM_read_bio_DSAparams(in,NULL,NULL); + else + { + BIO_printf(bio_err,"bad input format specified\n"); + goto end; + } + if (dsa == NULL) + { + BIO_printf(bio_err,"unable to load DSA parameters\n"); + ERR_print_errors(bio_err); + goto end; + } + + if (text) + { + DSAparams_print(out,dsa); + } + + if (C) + { + unsigned char *data; + int l,len,bits_p,bits_q,bits_g; + + len=BN_num_bytes(dsa->p); + bits_p=BN_num_bits(dsa->p); + bits_q=BN_num_bits(dsa->q); + bits_g=BN_num_bits(dsa->g); + data=(unsigned char *)Malloc(len+20); + if (data == NULL) + { + perror("Malloc"); + goto end; + } + l=BN_bn2bin(dsa->p,data); + printf("static unsigned char dsa%d_p[]={",bits_p); + for (i=0; i<l; i++) + { + if ((i%12) == 0) printf("\n\t"); + printf("0x%02X,",data[i]); + } + printf("\n\t};\n"); + + l=BN_bn2bin(dsa->q,data); + printf("static unsigned char dsa%d_q[]={",bits_p); + for (i=0; i<l; i++) + { + if ((i%12) == 0) printf("\n\t"); + printf("0x%02X,",data[i]); + } + printf("\n\t};\n"); + + l=BN_bn2bin(dsa->g,data); + printf("static unsigned char dsa%d_g[]={",bits_p); + for (i=0; i<l; i++) + { + if ((i%12) == 0) printf("\n\t"); + printf("0x%02X,",data[i]); + } + printf("\n\t};\n\n"); + + printf("DSA *get_dsa%d()\n\t{\n",bits_p); + printf("\tDSA *dsa;\n\n"); + printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n"); + printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n", + bits_p,bits_p); + printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n", + bits_p,bits_p); + printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n", + bits_p,bits_p); + printf("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n"); + printf("\t\treturn(NULL);\n"); + printf("\treturn(dsa);\n\t}\n"); + } + + + if (!noout) + { + if (outformat == FORMAT_ASN1) + i=i2d_DSAparams_bio(out,dsa); + else if (outformat == FORMAT_PEM) + i=PEM_write_bio_DSAparams(out,dsa); + else { + BIO_printf(bio_err,"bad output format specified for outfile\n"); + goto end; + } + if (!i) + { + BIO_printf(bio_err,"unable to write DSA paramaters\n"); + ERR_print_errors(bio_err); + goto end; + } + } + ret=0; +end: + if (in != NULL) BIO_free(in); + if (out != NULL) BIO_free(out); + if (dsa != NULL) DSA_free(dsa); + EXIT(ret); + } + +static void MS_CALLBACK dsa_cb(p, n) +int p; +int n; + { + char c='*'; + + if (p == 0) c='.'; + if (p == 1) c='+'; + if (p == 2) c='*'; + if (p == 3) c='\n'; + BIO_write(bio_err,&c,1); + BIO_flush(bio_err); +#ifdef LINT + p=n; +#endif + } |