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d02b48c6 | 1 | /* apps/rsa.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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 | ||
f5d7a031 | 59 | #ifndef NO_RSA |
d02b48c6 RE |
60 | #include <stdio.h> |
61 | #include <stdlib.h> | |
62 | #include <string.h> | |
63 | #include <time.h> | |
64 | #include "apps.h" | |
ec577822 BM |
65 | #include <openssl/bio.h> |
66 | #include <openssl/err.h> | |
67 | #include <openssl/rsa.h> | |
68 | #include <openssl/evp.h> | |
69 | #include <openssl/x509.h> | |
70 | #include <openssl/pem.h> | |
d02b48c6 RE |
71 | |
72 | #undef PROG | |
73 | #define PROG rsa_main | |
74 | ||
75 | /* -inform arg - input format - default PEM (one of DER, NET or PEM) | |
76 | * -outform arg - output format - default PEM | |
77 | * -in arg - input file - default stdin | |
78 | * -out arg - output file - default stdout | |
79 | * -des - encrypt output if PEM format with DES in cbc mode | |
80 | * -des3 - encrypt output if PEM format | |
81 | * -idea - encrypt output if PEM format | |
82 | * -text - print a text version | |
83 | * -modulus - print the RSA key modulus | |
03cd4944 | 84 | * -check - verify key consistency |
d02b48c6 RE |
85 | */ |
86 | ||
6b691a5c | 87 | int MAIN(int argc, char **argv) |
d02b48c6 RE |
88 | { |
89 | int ret=1; | |
90 | RSA *rsa=NULL; | |
91 | int i,badops=0; | |
e778802f | 92 | const EVP_CIPHER *enc=NULL; |
d02b48c6 | 93 | BIO *in=NULL,*out=NULL; |
03cd4944 | 94 | int informat,outformat,text=0,check=0,noout=0; |
d02b48c6 RE |
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) | |
58964a49 | 102 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
d02b48c6 RE |
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; | |
03cd4944 BM |
140 | else if (strcmp(*argv,"-check") == 0) |
141 | check=1; | |
d02b48c6 RE |
142 | else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) |
143 | { | |
144 | BIO_printf(bio_err,"unknown option %s\n",*argv); | |
145 | badops=1; | |
146 | break; | |
147 | } | |
148 | argc--; | |
149 | argv++; | |
150 | } | |
151 | ||
152 | if (badops) | |
153 | { | |
154 | bad: | |
155 | BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); | |
156 | BIO_printf(bio_err,"where options are\n"); | |
157 | BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); | |
158 | BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); | |
9fe84296 | 159 | BIO_printf(bio_err," -in arg input file\n"); |
d02b48c6 RE |
160 | BIO_printf(bio_err," -out arg output file\n"); |
161 | BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); | |
162 | BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); | |
163 | #ifndef NO_IDEA | |
164 | BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); | |
165 | #endif | |
166 | BIO_printf(bio_err," -text print the key in text\n"); | |
167 | BIO_printf(bio_err," -noout don't print key out\n"); | |
168 | BIO_printf(bio_err," -modulus print the RSA key modulus\n"); | |
03cd4944 | 169 | BIO_printf(bio_err," -check verify key consistency\n"); |
d02b48c6 RE |
170 | goto end; |
171 | } | |
172 | ||
173 | ERR_load_crypto_strings(); | |
174 | ||
175 | in=BIO_new(BIO_s_file()); | |
176 | out=BIO_new(BIO_s_file()); | |
177 | if ((in == NULL) || (out == NULL)) | |
178 | { | |
179 | ERR_print_errors(bio_err); | |
180 | goto end; | |
181 | } | |
182 | ||
183 | if (infile == NULL) | |
184 | BIO_set_fp(in,stdin,BIO_NOCLOSE); | |
185 | else | |
186 | { | |
187 | if (BIO_read_filename(in,infile) <= 0) | |
188 | { | |
189 | perror(infile); | |
190 | goto end; | |
191 | } | |
192 | } | |
193 | ||
194 | BIO_printf(bio_err,"read RSA private key\n"); | |
195 | if (informat == FORMAT_ASN1) | |
196 | rsa=d2i_RSAPrivateKey_bio(in,NULL); | |
197 | #ifndef NO_RC4 | |
198 | else if (informat == FORMAT_NETSCAPE) | |
199 | { | |
200 | BUF_MEM *buf=NULL; | |
201 | unsigned char *p; | |
202 | int size=0; | |
203 | ||
204 | buf=BUF_MEM_new(); | |
205 | for (;;) | |
206 | { | |
207 | if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10))) | |
208 | goto end; | |
209 | i=BIO_read(in,&(buf->data[size]),1024*10); | |
210 | size+=i; | |
211 | if (i == 0) break; | |
212 | if (i < 0) | |
213 | { | |
214 | perror("reading private key"); | |
215 | BUF_MEM_free(buf); | |
216 | goto end; | |
217 | } | |
218 | } | |
219 | p=(unsigned char *)buf->data; | |
220 | rsa=(RSA *)d2i_Netscape_RSA(NULL,&p,(long)size,NULL); | |
221 | BUF_MEM_free(buf); | |
222 | } | |
223 | #endif | |
224 | else if (informat == FORMAT_PEM) | |
74678cc2 | 225 | rsa=PEM_read_bio_RSAPrivateKey(in,NULL,NULL,NULL); |
d02b48c6 RE |
226 | else |
227 | { | |
228 | BIO_printf(bio_err,"bad input format specified for key\n"); | |
229 | goto end; | |
230 | } | |
231 | if (rsa == NULL) | |
232 | { | |
233 | BIO_printf(bio_err,"unable to load Private Key\n"); | |
234 | ERR_print_errors(bio_err); | |
235 | goto end; | |
236 | } | |
237 | ||
238 | if (outfile == NULL) | |
239 | BIO_set_fp(out,stdout,BIO_NOCLOSE); | |
240 | else | |
241 | { | |
242 | if (BIO_write_filename(out,outfile) <= 0) | |
243 | { | |
244 | perror(outfile); | |
245 | goto end; | |
246 | } | |
247 | } | |
248 | ||
249 | if (text) | |
250 | if (!RSA_print(out,rsa,0)) | |
251 | { | |
252 | perror(outfile); | |
253 | ERR_print_errors(bio_err); | |
254 | goto end; | |
255 | } | |
256 | ||
257 | if (modulus) | |
258 | { | |
259 | fprintf(stdout,"Modulus="); | |
260 | BN_print(out,rsa->n); | |
261 | fprintf(stdout,"\n"); | |
262 | } | |
263 | ||
03cd4944 | 264 | if (check) |
3a55fc1a BM |
265 | { |
266 | int r = RSA_check_key(rsa); | |
267 | ||
268 | if (r == 1) | |
03cd4944 | 269 | BIO_printf(out,"RSA key ok\n"); |
3a55fc1a | 270 | else if (r == 0) |
03cd4944 BM |
271 | { |
272 | long e; | |
273 | ||
274 | while ((e = ERR_peek_error()) != 0 && | |
275 | ERR_GET_LIB(e) == ERR_LIB_RSA && | |
276 | ERR_GET_FUNC(e) == RSA_F_RSA_CHECK_KEY && | |
277 | ERR_GET_REASON(e) != ERR_R_MALLOC_FAILURE) | |
278 | { | |
279 | BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(e)); | |
280 | ERR_get_error(); /* remove e from error stack */ | |
281 | } | |
03cd4944 | 282 | } |
3a55fc1a BM |
283 | |
284 | if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ | |
285 | { | |
286 | ERR_print_errors(bio_err); | |
287 | goto end; | |
288 | } | |
289 | } | |
290 | ||
d02b48c6 RE |
291 | if (noout) goto end; |
292 | BIO_printf(bio_err,"writing RSA private key\n"); | |
293 | if (outformat == FORMAT_ASN1) | |
294 | i=i2d_RSAPrivateKey_bio(out,rsa); | |
295 | #ifndef NO_RC4 | |
296 | else if (outformat == FORMAT_NETSCAPE) | |
297 | { | |
298 | unsigned char *p,*pp; | |
299 | int size; | |
300 | ||
301 | i=1; | |
302 | size=i2d_Netscape_RSA(rsa,NULL,NULL); | |
303 | if ((p=(unsigned char *)Malloc(size)) == NULL) | |
304 | { | |
305 | BIO_printf(bio_err,"Malloc failure\n"); | |
306 | goto end; | |
307 | } | |
308 | pp=p; | |
309 | i2d_Netscape_RSA(rsa,&p,NULL); | |
310 | BIO_write(out,(char *)pp,size); | |
311 | Free(pp); | |
312 | } | |
313 | #endif | |
314 | else if (outformat == FORMAT_PEM) | |
74678cc2 | 315 | i=PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0,NULL,NULL); |
d02b48c6 RE |
316 | else { |
317 | BIO_printf(bio_err,"bad output format specified for outfile\n"); | |
318 | goto end; | |
319 | } | |
320 | if (!i) | |
321 | { | |
322 | BIO_printf(bio_err,"unable to write private key\n"); | |
323 | ERR_print_errors(bio_err); | |
324 | } | |
325 | else | |
326 | ret=0; | |
327 | end: | |
328 | if (in != NULL) BIO_free(in); | |
329 | if (out != NULL) BIO_free(out); | |
330 | if (rsa != NULL) RSA_free(rsa); | |
331 | EXIT(ret); | |
332 | } | |
f5d7a031 | 333 | #endif |