/* apps/dsa.c */ /* Copyright (C) 1995-1998 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.] */ #ifndef NO_DSA #include #include #include #include #include "apps.h" #include #include #include #include #include #include #undef PROG #define PROG dsa_main /* -inform arg - input format - default PEM (one of DER, NET or PEM) * -outform arg - output format - default PEM * -in arg - input file - default stdin * -out arg - output file - default stdout * -des - encrypt output if PEM format with DES in cbc mode * -des3 - encrypt output if PEM format * -idea - encrypt output if PEM format * -text - print a text version * -modulus - print the DSA public key */ int MAIN(int, char **); int MAIN(int argc, char **argv) { int ret=1; DSA *dsa=NULL; int i,badops=0; const EVP_CIPHER *enc=NULL; BIO *in=NULL,*out=NULL; int informat,outformat,text=0,noout=0; int pubin = 0, pubout = 0; char *infile,*outfile,*prog; char *passargin = NULL, *passargout = NULL; char *passin = NULL, *passout = NULL; int modulus=0; apps_startup(); if (bio_err == NULL) if ((bio_err=BIO_new(BIO_s_file())) != NULL) BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 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,"-passin") == 0) { if (--argc < 1) goto bad; passargin= *(++argv); } else if (strcmp(*argv,"-passout") == 0) { if (--argc < 1) goto bad; passargout= *(++argv); } else if (strcmp(*argv,"-noout") == 0) noout=1; else if (strcmp(*argv,"-text") == 0) text=1; else if (strcmp(*argv,"-modulus") == 0) modulus=1; else if (strcmp(*argv,"-pubin") == 0) pubin=1; else if (strcmp(*argv,"-pubout") == 0) pubout=1; else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) { BIO_printf(bio_err,"unknown option %s\n",*argv); badops=1; break; } argc--; argv++; } if (badops) { bad: BIO_printf(bio_err,"%s [options] outfile\n",prog); BIO_printf(bio_err,"where options are\n"); BIO_printf(bio_err," -inform arg input format - DER or PEM\n"); BIO_printf(bio_err," -outform arg output format - DER or PEM\n"); BIO_printf(bio_err," -in arg input file\n"); BIO_printf(bio_err," -passin arg input file pass phrase source\n"); BIO_printf(bio_err," -out arg output file\n"); BIO_printf(bio_err," -passout arg output file pass phrase source\n"); BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); #ifndef NO_IDEA BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); #endif BIO_printf(bio_err," -text print the key in text\n"); BIO_printf(bio_err," -noout don't print key out\n"); BIO_printf(bio_err," -modulus print the DSA public value\n"); goto end; } ERR_load_crypto_strings(); if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { BIO_printf(bio_err, "Error getting passwords\n"); goto end; } 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; } } BIO_printf(bio_err,"read DSA key\n"); if (informat == FORMAT_ASN1) { if(pubin) dsa=d2i_DSA_PUBKEY_bio(in,NULL); else dsa=d2i_DSAPrivateKey_bio(in,NULL); } else if (informat == FORMAT_PEM) { if(pubin) dsa=PEM_read_bio_DSA_PUBKEY(in,NULL, NULL, NULL); else dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL,passin); } else { BIO_printf(bio_err,"bad input format specified for key\n"); goto end; } if (dsa == NULL) { BIO_printf(bio_err,"unable to load Key\n"); ERR_print_errors(bio_err); goto end; } if (outfile == NULL) { BIO_set_fp(out,stdout,BIO_NOCLOSE); #ifdef VMS { BIO *tmpbio = BIO_new(BIO_f_linebuffer()); out = BIO_push(tmpbio, out); } #endif } else { if (BIO_write_filename(out,outfile) <= 0) { perror(outfile); goto end; } } if (text) if (!DSA_print(out,dsa,0)) { perror(outfile); ERR_print_errors(bio_err); goto end; } if (modulus) { fprintf(stdout,"Public Key="); BN_print(out,dsa->pub_key); fprintf(stdout,"\n"); } if (noout) goto end; BIO_printf(bio_err,"writing DSA key\n"); if (outformat == FORMAT_ASN1) { if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa); else i=i2d_DSAPrivateKey_bio(out,dsa); } else if (outformat == FORMAT_PEM) { if(pubin || pubout) i=PEM_write_bio_DSA_PUBKEY(out,dsa); else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc, NULL,0,NULL, passout); } else { BIO_printf(bio_err,"bad output format specified for outfile\n"); goto end; } if (!i) { BIO_printf(bio_err,"unable to write private key\n"); ERR_print_errors(bio_err); } else ret=0; end: if(in != NULL) BIO_free(in); if(out != NULL) BIO_free_all(out); if(dsa != NULL) DSA_free(dsa); if(passin) OPENSSL_free(passin); if(passout) OPENSSL_free(passout); OPENSSL_EXIT(ret); } #endif