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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 |
3ea23631 DSH |
85 | * -pubin - Expect a public key in input file. |
86 | * -pubout - Output a public key. | |
d02b48c6 RE |
87 | */ |
88 | ||
6b691a5c | 89 | int MAIN(int argc, char **argv) |
d02b48c6 RE |
90 | { |
91 | int ret=1; | |
92 | RSA *rsa=NULL; | |
93 | int i,badops=0; | |
e778802f | 94 | const EVP_CIPHER *enc=NULL; |
d02b48c6 | 95 | BIO *in=NULL,*out=NULL; |
03cd4944 | 96 | int informat,outformat,text=0,check=0,noout=0; |
3ea23631 | 97 | int pubin = 0, pubout = 0; |
d02b48c6 | 98 | char *infile,*outfile,*prog; |
af29811e | 99 | char *passin = NULL, *passout = NULL; |
d02b48c6 RE |
100 | int modulus=0; |
101 | ||
102 | apps_startup(); | |
103 | ||
104 | if (bio_err == NULL) | |
105 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) | |
58964a49 | 106 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
d02b48c6 RE |
107 | |
108 | infile=NULL; | |
109 | outfile=NULL; | |
110 | informat=FORMAT_PEM; | |
111 | outformat=FORMAT_PEM; | |
112 | ||
113 | prog=argv[0]; | |
114 | argc--; | |
115 | argv++; | |
116 | while (argc >= 1) | |
117 | { | |
118 | if (strcmp(*argv,"-inform") == 0) | |
119 | { | |
120 | if (--argc < 1) goto bad; | |
121 | informat=str2fmt(*(++argv)); | |
122 | } | |
123 | else if (strcmp(*argv,"-outform") == 0) | |
124 | { | |
125 | if (--argc < 1) goto bad; | |
126 | outformat=str2fmt(*(++argv)); | |
127 | } | |
128 | else if (strcmp(*argv,"-in") == 0) | |
129 | { | |
130 | if (--argc < 1) goto bad; | |
131 | infile= *(++argv); | |
132 | } | |
133 | else if (strcmp(*argv,"-out") == 0) | |
134 | { | |
135 | if (--argc < 1) goto bad; | |
136 | outfile= *(++argv); | |
137 | } | |
af29811e DSH |
138 | else if (strcmp(*argv,"-passin") == 0) |
139 | { | |
140 | if (--argc < 1) goto bad; | |
141 | passin= *(++argv); | |
142 | } | |
143 | else if (strcmp(*argv,"-envpassin") == 0) | |
144 | { | |
145 | if (--argc < 1) goto bad; | |
146 | if(!(passin= getenv(*(++argv)))) | |
147 | { | |
148 | BIO_printf(bio_err, | |
149 | "Can't read environment variable %s\n", | |
150 | *argv); | |
151 | badops = 1; | |
152 | } | |
153 | } | |
154 | else if (strcmp(*argv,"-envpassout") == 0) | |
155 | { | |
156 | if (--argc < 1) goto bad; | |
157 | if(!(passout= getenv(*(++argv)))) | |
158 | { | |
159 | BIO_printf(bio_err, | |
160 | "Can't read environment variable %s\n", | |
161 | *argv); | |
162 | badops = 1; | |
163 | } | |
164 | argv++; | |
165 | } | |
166 | else if (strcmp(*argv,"-passout") == 0) | |
167 | { | |
168 | if (--argc < 1) goto bad; | |
169 | passout= *(++argv); | |
170 | } | |
3ea23631 DSH |
171 | else if (strcmp(*argv,"-pubin") == 0) |
172 | pubin=1; | |
173 | else if (strcmp(*argv,"-pubout") == 0) | |
174 | pubout=1; | |
d02b48c6 RE |
175 | else if (strcmp(*argv,"-noout") == 0) |
176 | noout=1; | |
177 | else if (strcmp(*argv,"-text") == 0) | |
178 | text=1; | |
179 | else if (strcmp(*argv,"-modulus") == 0) | |
180 | modulus=1; | |
03cd4944 BM |
181 | else if (strcmp(*argv,"-check") == 0) |
182 | check=1; | |
d02b48c6 RE |
183 | else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) |
184 | { | |
185 | BIO_printf(bio_err,"unknown option %s\n",*argv); | |
186 | badops=1; | |
187 | break; | |
188 | } | |
189 | argc--; | |
190 | argv++; | |
191 | } | |
192 | ||
193 | if (badops) | |
194 | { | |
195 | bad: | |
196 | BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); | |
197 | BIO_printf(bio_err,"where options are\n"); | |
af29811e DSH |
198 | BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); |
199 | BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); | |
200 | BIO_printf(bio_err," -in arg input file\n"); | |
201 | BIO_printf(bio_err," -passin arg input file pass phrase\n"); | |
202 | BIO_printf(bio_err," -envpassin arg environment variable containing input file pass phrase\n"); | |
203 | BIO_printf(bio_err," -in arg input file\n"); | |
204 | BIO_printf(bio_err," -out arg output file\n"); | |
205 | BIO_printf(bio_err," -passout arg input file pass phrase\n"); | |
206 | BIO_printf(bio_err," -envpassout arg environment variable containing input file pass phrase\n"); | |
207 | BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); | |
208 | BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); | |
d02b48c6 | 209 | #ifndef NO_IDEA |
af29811e | 210 | BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); |
d02b48c6 | 211 | #endif |
af29811e DSH |
212 | BIO_printf(bio_err," -text print the key in text\n"); |
213 | BIO_printf(bio_err," -noout don't print key out\n"); | |
214 | BIO_printf(bio_err," -modulus print the RSA key modulus\n"); | |
215 | BIO_printf(bio_err," -check verify key consistency\n"); | |
216 | BIO_printf(bio_err," -pubin expect a public key in input file\n"); | |
217 | BIO_printf(bio_err," -pubout output a public key\n"); | |
d02b48c6 RE |
218 | goto end; |
219 | } | |
220 | ||
221 | ERR_load_crypto_strings(); | |
222 | ||
223 | in=BIO_new(BIO_s_file()); | |
224 | out=BIO_new(BIO_s_file()); | |
225 | if ((in == NULL) || (out == NULL)) | |
226 | { | |
227 | ERR_print_errors(bio_err); | |
228 | goto end; | |
229 | } | |
230 | ||
231 | if (infile == NULL) | |
232 | BIO_set_fp(in,stdin,BIO_NOCLOSE); | |
233 | else | |
234 | { | |
235 | if (BIO_read_filename(in,infile) <= 0) | |
236 | { | |
237 | perror(infile); | |
238 | goto end; | |
239 | } | |
240 | } | |
241 | ||
242 | BIO_printf(bio_err,"read RSA private key\n"); | |
3ea23631 DSH |
243 | if (informat == FORMAT_ASN1) { |
244 | if (pubin) rsa=d2i_RSAPublicKey_bio(in,NULL); | |
245 | else rsa=d2i_RSAPrivateKey_bio(in,NULL); | |
246 | } | |
d02b48c6 RE |
247 | #ifndef NO_RC4 |
248 | else if (informat == FORMAT_NETSCAPE) | |
249 | { | |
250 | BUF_MEM *buf=NULL; | |
251 | unsigned char *p; | |
252 | int size=0; | |
253 | ||
254 | buf=BUF_MEM_new(); | |
255 | for (;;) | |
256 | { | |
257 | if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10))) | |
258 | goto end; | |
259 | i=BIO_read(in,&(buf->data[size]),1024*10); | |
260 | size+=i; | |
261 | if (i == 0) break; | |
262 | if (i < 0) | |
263 | { | |
264 | perror("reading private key"); | |
265 | BUF_MEM_free(buf); | |
266 | goto end; | |
267 | } | |
268 | } | |
269 | p=(unsigned char *)buf->data; | |
270 | rsa=(RSA *)d2i_Netscape_RSA(NULL,&p,(long)size,NULL); | |
271 | BUF_MEM_free(buf); | |
272 | } | |
273 | #endif | |
3ea23631 DSH |
274 | else if (informat == FORMAT_PEM) { |
275 | if(pubin) rsa=PEM_read_bio_RSAPublicKey(in,NULL,NULL,NULL); | |
af29811e DSH |
276 | else { |
277 | if(passin) rsa=PEM_read_bio_RSAPrivateKey(in,NULL, | |
278 | key_cb,passin); | |
279 | else rsa=PEM_read_bio_RSAPrivateKey(in,NULL,NULL,NULL); | |
280 | } | |
3ea23631 | 281 | } |
d02b48c6 RE |
282 | else |
283 | { | |
284 | BIO_printf(bio_err,"bad input format specified for key\n"); | |
285 | goto end; | |
286 | } | |
287 | if (rsa == NULL) | |
288 | { | |
3ea23631 | 289 | BIO_printf(bio_err,"unable to load Key\n"); |
d02b48c6 RE |
290 | ERR_print_errors(bio_err); |
291 | goto end; | |
292 | } | |
293 | ||
294 | if (outfile == NULL) | |
295 | BIO_set_fp(out,stdout,BIO_NOCLOSE); | |
296 | else | |
297 | { | |
298 | if (BIO_write_filename(out,outfile) <= 0) | |
299 | { | |
300 | perror(outfile); | |
301 | goto end; | |
302 | } | |
303 | } | |
304 | ||
305 | if (text) | |
306 | if (!RSA_print(out,rsa,0)) | |
307 | { | |
308 | perror(outfile); | |
309 | ERR_print_errors(bio_err); | |
310 | goto end; | |
311 | } | |
312 | ||
313 | if (modulus) | |
314 | { | |
315 | fprintf(stdout,"Modulus="); | |
316 | BN_print(out,rsa->n); | |
317 | fprintf(stdout,"\n"); | |
318 | } | |
319 | ||
03cd4944 | 320 | if (check) |
3a55fc1a BM |
321 | { |
322 | int r = RSA_check_key(rsa); | |
323 | ||
324 | if (r == 1) | |
03cd4944 | 325 | BIO_printf(out,"RSA key ok\n"); |
3a55fc1a | 326 | else if (r == 0) |
03cd4944 BM |
327 | { |
328 | long e; | |
329 | ||
330 | while ((e = ERR_peek_error()) != 0 && | |
331 | ERR_GET_LIB(e) == ERR_LIB_RSA && | |
332 | ERR_GET_FUNC(e) == RSA_F_RSA_CHECK_KEY && | |
333 | ERR_GET_REASON(e) != ERR_R_MALLOC_FAILURE) | |
334 | { | |
335 | BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(e)); | |
336 | ERR_get_error(); /* remove e from error stack */ | |
337 | } | |
03cd4944 | 338 | } |
3a55fc1a BM |
339 | |
340 | if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ | |
341 | { | |
342 | ERR_print_errors(bio_err); | |
343 | goto end; | |
344 | } | |
345 | } | |
346 | ||
2cfa6921 BM |
347 | if (noout) |
348 | { | |
349 | ret = 0; | |
350 | goto end; | |
351 | } | |
3ea23631 DSH |
352 | BIO_printf(bio_err,"writing RSA key\n"); |
353 | if (outformat == FORMAT_ASN1) { | |
354 | if(pubout || pubin) i=i2d_RSAPublicKey_bio(out,rsa); | |
355 | else i=i2d_RSAPrivateKey_bio(out,rsa); | |
356 | } | |
d02b48c6 RE |
357 | #ifndef NO_RC4 |
358 | else if (outformat == FORMAT_NETSCAPE) | |
359 | { | |
360 | unsigned char *p,*pp; | |
361 | int size; | |
362 | ||
363 | i=1; | |
364 | size=i2d_Netscape_RSA(rsa,NULL,NULL); | |
365 | if ((p=(unsigned char *)Malloc(size)) == NULL) | |
366 | { | |
367 | BIO_printf(bio_err,"Malloc failure\n"); | |
368 | goto end; | |
369 | } | |
370 | pp=p; | |
371 | i2d_Netscape_RSA(rsa,&p,NULL); | |
372 | BIO_write(out,(char *)pp,size); | |
373 | Free(pp); | |
374 | } | |
375 | #endif | |
3ea23631 DSH |
376 | else if (outformat == FORMAT_PEM) { |
377 | if(pubout || pubin) | |
378 | i=PEM_write_bio_RSAPublicKey(out,rsa); | |
af29811e DSH |
379 | else { |
380 | if(passout) i=PEM_write_bio_RSAPrivateKey(out,rsa, | |
381 | enc,NULL,0,key_cb,passout); | |
382 | else i=PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL, | |
383 | 0,NULL,NULL); | |
384 | } | |
3ea23631 | 385 | } else { |
d02b48c6 RE |
386 | BIO_printf(bio_err,"bad output format specified for outfile\n"); |
387 | goto end; | |
388 | } | |
389 | if (!i) | |
390 | { | |
3ea23631 | 391 | BIO_printf(bio_err,"unable to write key\n"); |
d02b48c6 RE |
392 | ERR_print_errors(bio_err); |
393 | } | |
394 | else | |
395 | ret=0; | |
396 | end: | |
397 | if (in != NULL) BIO_free(in); | |
398 | if (out != NULL) BIO_free(out); | |
399 | if (rsa != NULL) RSA_free(rsa); | |
400 | EXIT(ret); | |
401 | } | |
f5d7a031 | 402 | #endif |