[15529] | 1 | /* apps/dsa.c */ |
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| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * This package is an SSL implementation written |
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| 6 | * by Eric Young (eay@cryptsoft.com). |
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| 7 | * The implementation was written so as to conform with Netscapes SSL. |
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| 8 | * |
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| 9 | * This library is free for commercial and non-commercial use as long as |
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| 10 | * the following conditions are aheared to. The following conditions |
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| 11 | * apply to all code found in this distribution, be it the RC4, RSA, |
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| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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| 13 | * included with this distribution is covered by the same copyright terms |
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| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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| 15 | * |
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| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
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| 17 | * the code are not to be removed. |
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| 18 | * If this package is used in a product, Eric Young should be given attribution |
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| 19 | * as the author of the parts of the library used. |
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| 20 | * This can be in the form of a textual message at program startup or |
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| 21 | * in documentation (online or textual) provided with the package. |
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| 22 | * |
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| 23 | * Redistribution and use in source and binary forms, with or without |
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| 24 | * modification, are permitted provided that the following conditions |
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| 25 | * are met: |
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| 26 | * 1. Redistributions of source code must retain the copyright |
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| 27 | * notice, this list of conditions and the following disclaimer. |
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| 28 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 29 | * notice, this list of conditions and the following disclaimer in the |
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| 30 | * documentation and/or other materials provided with the distribution. |
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| 31 | * 3. All advertising materials mentioning features or use of this software |
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| 32 | * must display the following acknowledgement: |
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| 33 | * "This product includes cryptographic software written by |
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| 34 | * Eric Young (eay@cryptsoft.com)" |
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| 35 | * The word 'cryptographic' can be left out if the rouines from the library |
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| 36 | * being used are not cryptographic related :-). |
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| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
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| 38 | * the apps directory (application code) you must include an acknowledgement: |
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| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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| 40 | * |
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| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 51 | * SUCH DAMAGE. |
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| 52 | * |
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| 53 | * The licence and distribution terms for any publically available version or |
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| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be |
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| 55 | * copied and put under another distribution licence |
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| 56 | * [including the GNU Public Licence.] |
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| 57 | */ |
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| 58 | |
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| 59 | #ifndef NO_DSA |
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| 60 | #include <stdio.h> |
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| 61 | #include <stdlib.h> |
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| 62 | #include <string.h> |
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| 63 | #include <time.h> |
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| 64 | #include "apps.h" |
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| 65 | #include <openssl/bio.h> |
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| 66 | #include <openssl/err.h> |
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| 67 | #include <openssl/dsa.h> |
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| 68 | #include <openssl/evp.h> |
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| 69 | #include <openssl/x509.h> |
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| 70 | #include <openssl/pem.h> |
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| 71 | |
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| 72 | #undef PROG |
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| 73 | #define PROG dsa_main |
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| 74 | |
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| 75 | /* -inform arg - input format - default PEM (one of DER, NET or PEM) |
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| 76 | * -outform arg - output format - default PEM |
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| 77 | * -in arg - input file - default stdin |
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| 78 | * -out arg - output file - default stdout |
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| 79 | * -des - encrypt output if PEM format with DES in cbc mode |
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| 80 | * -des3 - encrypt output if PEM format |
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| 81 | * -idea - encrypt output if PEM format |
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| 82 | * -text - print a text version |
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| 83 | * -modulus - print the DSA public key |
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| 84 | */ |
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| 85 | |
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| 86 | int MAIN(int, char **); |
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| 87 | |
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| 88 | int MAIN(int argc, char **argv) |
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| 89 | { |
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| 90 | int ret=1; |
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| 91 | DSA *dsa=NULL; |
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| 92 | int i,badops=0; |
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| 93 | const EVP_CIPHER *enc=NULL; |
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| 94 | BIO *in=NULL,*out=NULL; |
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| 95 | int informat,outformat,text=0,noout=0; |
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| 96 | int pubin = 0, pubout = 0; |
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| 97 | char *infile,*outfile,*prog; |
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| 98 | char *passargin = NULL, *passargout = NULL; |
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| 99 | char *passin = NULL, *passout = NULL; |
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| 100 | int modulus=0; |
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| 101 | |
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| 102 | apps_startup(); |
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| 103 | |
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| 104 | if (bio_err == NULL) |
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| 105 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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| 106 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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| 107 | |
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| 108 | infile=NULL; |
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| 109 | outfile=NULL; |
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| 110 | informat=FORMAT_PEM; |
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| 111 | outformat=FORMAT_PEM; |
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| 112 | |
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| 113 | prog=argv[0]; |
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| 114 | argc--; |
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| 115 | argv++; |
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| 116 | while (argc >= 1) |
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| 117 | { |
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| 118 | if (strcmp(*argv,"-inform") == 0) |
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| 119 | { |
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| 120 | if (--argc < 1) goto bad; |
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| 121 | informat=str2fmt(*(++argv)); |
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| 122 | } |
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| 123 | else if (strcmp(*argv,"-outform") == 0) |
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| 124 | { |
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| 125 | if (--argc < 1) goto bad; |
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| 126 | outformat=str2fmt(*(++argv)); |
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| 127 | } |
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| 128 | else if (strcmp(*argv,"-in") == 0) |
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| 129 | { |
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| 130 | if (--argc < 1) goto bad; |
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| 131 | infile= *(++argv); |
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| 132 | } |
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| 133 | else if (strcmp(*argv,"-out") == 0) |
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| 134 | { |
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| 135 | if (--argc < 1) goto bad; |
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| 136 | outfile= *(++argv); |
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| 137 | } |
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| 138 | else if (strcmp(*argv,"-passin") == 0) |
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| 139 | { |
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| 140 | if (--argc < 1) goto bad; |
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| 141 | passargin= *(++argv); |
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| 142 | } |
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| 143 | else if (strcmp(*argv,"-passout") == 0) |
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| 144 | { |
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| 145 | if (--argc < 1) goto bad; |
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| 146 | passargout= *(++argv); |
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| 147 | } |
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| 148 | else if (strcmp(*argv,"-noout") == 0) |
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| 149 | noout=1; |
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| 150 | else if (strcmp(*argv,"-text") == 0) |
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| 151 | text=1; |
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| 152 | else if (strcmp(*argv,"-modulus") == 0) |
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| 153 | modulus=1; |
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| 154 | else if (strcmp(*argv,"-pubin") == 0) |
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| 155 | pubin=1; |
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| 156 | else if (strcmp(*argv,"-pubout") == 0) |
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| 157 | pubout=1; |
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| 158 | else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) |
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| 159 | { |
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| 160 | BIO_printf(bio_err,"unknown option %s\n",*argv); |
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| 161 | badops=1; |
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| 162 | break; |
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| 163 | } |
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| 164 | argc--; |
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| 165 | argv++; |
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| 166 | } |
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| 167 | |
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| 168 | if (badops) |
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| 169 | { |
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| 170 | bad: |
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| 171 | BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); |
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| 172 | BIO_printf(bio_err,"where options are\n"); |
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| 173 | BIO_printf(bio_err," -inform arg input format - DER or PEM\n"); |
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| 174 | BIO_printf(bio_err," -outform arg output format - DER or PEM\n"); |
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| 175 | BIO_printf(bio_err," -in arg input file\n"); |
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| 176 | BIO_printf(bio_err," -passin arg input file pass phrase source\n"); |
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| 177 | BIO_printf(bio_err," -out arg output file\n"); |
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| 178 | BIO_printf(bio_err," -passout arg output file pass phrase source\n"); |
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| 179 | BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); |
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| 180 | BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); |
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| 181 | #ifndef NO_IDEA |
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| 182 | BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); |
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| 183 | #endif |
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| 184 | BIO_printf(bio_err," -text print the key in text\n"); |
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| 185 | BIO_printf(bio_err," -noout don't print key out\n"); |
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| 186 | BIO_printf(bio_err," -modulus print the DSA public value\n"); |
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| 187 | goto end; |
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| 188 | } |
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| 189 | |
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| 190 | ERR_load_crypto_strings(); |
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| 191 | |
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| 192 | if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { |
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| 193 | BIO_printf(bio_err, "Error getting passwords\n"); |
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| 194 | goto end; |
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| 195 | } |
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| 196 | |
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| 197 | in=BIO_new(BIO_s_file()); |
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| 198 | out=BIO_new(BIO_s_file()); |
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| 199 | if ((in == NULL) || (out == NULL)) |
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| 200 | { |
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| 201 | ERR_print_errors(bio_err); |
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| 202 | goto end; |
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| 203 | } |
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| 204 | |
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| 205 | if (infile == NULL) |
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| 206 | BIO_set_fp(in,stdin,BIO_NOCLOSE); |
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| 207 | else |
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| 208 | { |
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| 209 | if (BIO_read_filename(in,infile) <= 0) |
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| 210 | { |
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| 211 | perror(infile); |
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| 212 | goto end; |
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| 213 | } |
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| 214 | } |
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| 215 | |
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| 216 | BIO_printf(bio_err,"read DSA key\n"); |
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| 217 | if (informat == FORMAT_ASN1) { |
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| 218 | if(pubin) dsa=d2i_DSA_PUBKEY_bio(in,NULL); |
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| 219 | else dsa=d2i_DSAPrivateKey_bio(in,NULL); |
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| 220 | } else if (informat == FORMAT_PEM) { |
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| 221 | if(pubin) dsa=PEM_read_bio_DSA_PUBKEY(in,NULL, NULL, NULL); |
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| 222 | else dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL,passin); |
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| 223 | } else |
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| 224 | { |
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| 225 | BIO_printf(bio_err,"bad input format specified for key\n"); |
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| 226 | goto end; |
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| 227 | } |
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| 228 | if (dsa == NULL) |
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| 229 | { |
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| 230 | BIO_printf(bio_err,"unable to load Key\n"); |
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| 231 | ERR_print_errors(bio_err); |
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| 232 | goto end; |
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| 233 | } |
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| 234 | |
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| 235 | if (outfile == NULL) |
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| 236 | { |
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| 237 | BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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| 238 | #ifdef VMS |
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| 239 | { |
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| 240 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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| 241 | out = BIO_push(tmpbio, out); |
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| 242 | } |
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| 243 | #endif |
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| 244 | } |
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| 245 | else |
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| 246 | { |
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| 247 | if (BIO_write_filename(out,outfile) <= 0) |
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| 248 | { |
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| 249 | perror(outfile); |
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| 250 | goto end; |
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| 251 | } |
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| 252 | } |
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| 253 | |
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| 254 | if (text) |
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| 255 | if (!DSA_print(out,dsa,0)) |
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| 256 | { |
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| 257 | perror(outfile); |
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| 258 | ERR_print_errors(bio_err); |
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| 259 | goto end; |
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| 260 | } |
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| 261 | |
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| 262 | if (modulus) |
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| 263 | { |
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| 264 | fprintf(stdout,"Public Key="); |
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| 265 | BN_print(out,dsa->pub_key); |
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| 266 | fprintf(stdout,"\n"); |
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| 267 | } |
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| 268 | |
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| 269 | if (noout) goto end; |
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| 270 | BIO_printf(bio_err,"writing DSA key\n"); |
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| 271 | if (outformat == FORMAT_ASN1) { |
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| 272 | if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa); |
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| 273 | else i=i2d_DSAPrivateKey_bio(out,dsa); |
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| 274 | } else if (outformat == FORMAT_PEM) { |
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| 275 | if(pubin || pubout) |
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| 276 | i=PEM_write_bio_DSA_PUBKEY(out,dsa); |
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| 277 | else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc, |
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| 278 | NULL,0,NULL, passout); |
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| 279 | } else { |
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| 280 | BIO_printf(bio_err,"bad output format specified for outfile\n"); |
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| 281 | goto end; |
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| 282 | } |
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| 283 | if (!i) |
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| 284 | { |
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| 285 | BIO_printf(bio_err,"unable to write private key\n"); |
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| 286 | ERR_print_errors(bio_err); |
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| 287 | } |
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| 288 | else |
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| 289 | ret=0; |
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| 290 | end: |
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| 291 | if(in != NULL) BIO_free(in); |
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| 292 | if(out != NULL) BIO_free_all(out); |
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| 293 | if(dsa != NULL) DSA_free(dsa); |
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| 294 | if(passin) OPENSSL_free(passin); |
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| 295 | if(passout) OPENSSL_free(passout); |
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| 296 | EXIT(ret); |
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| 297 | } |
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| 298 | #endif |
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