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1 | /* apps/dsa.c */ |
2 | /* Copyright (C) 1995-1997 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 | #include <stdio.h> | |
60 | #include <stdlib.h> | |
61 | #include <string.h> | |
62 | #include <time.h> | |
63 | #include "apps.h" | |
64 | #include "bio.h" | |
65 | #include "err.h" | |
66 | #include "dsa.h" | |
67 | #include "evp.h" | |
68 | #include "x509.h" | |
69 | #include "pem.h" | |
70 | ||
71 | #undef PROG | |
72 | #define PROG dsa_main | |
73 | ||
74 | /* -inform arg - input format - default PEM (one of DER, NET or PEM) | |
75 | * -outform arg - output format - default PEM | |
76 | * -in arg - input file - default stdin | |
77 | * -out arg - output file - default stdout | |
78 | * -des - encrypt output if PEM format with DES in cbc mode | |
79 | * -des3 - encrypt output if PEM format | |
80 | * -idea - encrypt output if PEM format | |
81 | * -text - print a text version | |
82 | * -modulus - print the DSA public key | |
83 | */ | |
84 | ||
85 | int MAIN(argc, argv) | |
86 | int argc; | |
87 | char **argv; | |
88 | { | |
89 | int ret=1; | |
90 | DSA *dsa=NULL; | |
91 | int i,badops=0; | |
92 | EVP_CIPHER *enc=NULL; | |
93 | BIO *in=NULL,*out=NULL; | |
94 | int informat,outformat,text=0,noout=0; | |
95 | char *infile,*outfile,*prog; | |
96 | int modulus=0; | |
97 | ||
98 | apps_startup(); | |
99 | ||
100 | if (bio_err == NULL) | |
101 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) | |
102 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE); | |
103 | ||
104 | infile=NULL; | |
105 | outfile=NULL; | |
106 | informat=FORMAT_PEM; | |
107 | outformat=FORMAT_PEM; | |
108 | ||
109 | prog=argv[0]; | |
110 | argc--; | |
111 | argv++; | |
112 | while (argc >= 1) | |
113 | { | |
114 | if (strcmp(*argv,"-inform") == 0) | |
115 | { | |
116 | if (--argc < 1) goto bad; | |
117 | informat=str2fmt(*(++argv)); | |
118 | } | |
119 | else if (strcmp(*argv,"-outform") == 0) | |
120 | { | |
121 | if (--argc < 1) goto bad; | |
122 | outformat=str2fmt(*(++argv)); | |
123 | } | |
124 | else if (strcmp(*argv,"-in") == 0) | |
125 | { | |
126 | if (--argc < 1) goto bad; | |
127 | infile= *(++argv); | |
128 | } | |
129 | else if (strcmp(*argv,"-out") == 0) | |
130 | { | |
131 | if (--argc < 1) goto bad; | |
132 | outfile= *(++argv); | |
133 | } | |
134 | else if (strcmp(*argv,"-noout") == 0) | |
135 | noout=1; | |
136 | else if (strcmp(*argv,"-text") == 0) | |
137 | text=1; | |
138 | else if (strcmp(*argv,"-modulus") == 0) | |
139 | modulus=1; | |
140 | else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) | |
141 | { | |
142 | BIO_printf(bio_err,"unknown option %s\n",*argv); | |
143 | badops=1; | |
144 | break; | |
145 | } | |
146 | argc--; | |
147 | argv++; | |
148 | } | |
149 | ||
150 | if (badops) | |
151 | { | |
152 | bad: | |
153 | BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); | |
154 | BIO_printf(bio_err,"where options are\n"); | |
155 | BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); | |
156 | BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); | |
157 | BIO_printf(bio_err," -in arg inout file\n"); | |
158 | BIO_printf(bio_err," -out arg output file\n"); | |
159 | BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); | |
160 | BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); | |
161 | #ifndef NO_IDEA | |
162 | BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); | |
163 | #endif | |
164 | BIO_printf(bio_err," -text print the key in text\n"); | |
165 | BIO_printf(bio_err," -noout don't print key out\n"); | |
166 | BIO_printf(bio_err," -modulus print the DSA public value\n"); | |
167 | goto end; | |
168 | } | |
169 | ||
170 | ERR_load_crypto_strings(); | |
171 | ||
172 | in=BIO_new(BIO_s_file()); | |
173 | out=BIO_new(BIO_s_file()); | |
174 | if ((in == NULL) || (out == NULL)) | |
175 | { | |
176 | ERR_print_errors(bio_err); | |
177 | goto end; | |
178 | } | |
179 | ||
180 | if (infile == NULL) | |
181 | BIO_set_fp(in,stdin,BIO_NOCLOSE); | |
182 | else | |
183 | { | |
184 | if (BIO_read_filename(in,infile) <= 0) | |
185 | { | |
186 | perror(infile); | |
187 | goto end; | |
188 | } | |
189 | } | |
190 | ||
191 | BIO_printf(bio_err,"read DSA private key\n"); | |
192 | if (informat == FORMAT_ASN1) | |
193 | dsa=d2i_DSAPrivateKey_bio(in,NULL); | |
194 | else if (informat == FORMAT_PEM) | |
195 | dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL); | |
196 | else | |
197 | { | |
198 | BIO_printf(bio_err,"bad input format specified for key\n"); | |
199 | goto end; | |
200 | } | |
201 | if (dsa == NULL) | |
202 | { | |
203 | BIO_printf(bio_err,"unable to load Private Key\n"); | |
204 | ERR_print_errors(bio_err); | |
205 | goto end; | |
206 | } | |
207 | ||
208 | if (outfile == NULL) | |
209 | BIO_set_fp(out,stdout,BIO_NOCLOSE); | |
210 | else | |
211 | { | |
212 | if (BIO_write_filename(out,outfile) <= 0) | |
213 | { | |
214 | perror(outfile); | |
215 | goto end; | |
216 | } | |
217 | } | |
218 | ||
219 | if (text) | |
220 | if (!DSA_print(out,dsa,0)) | |
221 | { | |
222 | perror(outfile); | |
223 | ERR_print_errors(bio_err); | |
224 | goto end; | |
225 | } | |
226 | ||
227 | if (modulus) | |
228 | { | |
229 | fprintf(stdout,"Public Key="); | |
230 | BN_print(out,dsa->pub_key); | |
231 | fprintf(stdout,"\n"); | |
232 | } | |
233 | ||
234 | if (noout) goto end; | |
235 | BIO_printf(bio_err,"writing DSA private key\n"); | |
236 | if (outformat == FORMAT_ASN1) | |
237 | i=i2d_DSAPrivateKey_bio(out,dsa); | |
238 | else if (outformat == FORMAT_PEM) | |
239 | i=PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL); | |
240 | else { | |
241 | BIO_printf(bio_err,"bad output format specified for outfile\n"); | |
242 | goto end; | |
243 | } | |
244 | if (!i) | |
245 | { | |
246 | BIO_printf(bio_err,"unable to write private key\n"); | |
247 | ERR_print_errors(bio_err); | |
248 | } | |
249 | else | |
250 | ret=0; | |
251 | end: | |
252 | if (in != NULL) BIO_free(in); | |
253 | if (out != NULL) BIO_free(out); | |
254 | if (dsa != NULL) DSA_free(dsa); | |
255 | EXIT(ret); | |
256 | } | |
257 |