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source: vbox/trunk/src/libs/openssl-1.1.1f/apps/rsa.c@ 83531

Last change on this file since 83531 was 83531, checked in by vboxsync, 5 years ago

setting svn:sync-process=export for openssl-1.1.1f, all files except tests
File size: 9.4 KB
Line 
1/*
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <openssl/opensslconf.h>
11#ifdef OPENSSL_NO_RSA
12NON_EMPTY_TRANSLATION_UNIT
13#else
14
15# include <stdio.h>
16# include <stdlib.h>
17# include <string.h>
18# include <time.h>
19# include "apps.h"
20# include "progs.h"
21# include <openssl/bio.h>
22# include <openssl/err.h>
23# include <openssl/rsa.h>
24# include <openssl/evp.h>
25# include <openssl/x509.h>
26# include <openssl/pem.h>
27# include <openssl/bn.h>
28
29typedef enum OPTION_choice {
30 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
31 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
32 OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
33 OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
34 /* Do not change the order here; see case statements below */
35 OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
36 OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER
37} OPTION_CHOICE;
38
39const OPTIONS rsa_options[] = {
40 {"help", OPT_HELP, '-', "Display this summary"},
41 {"inform", OPT_INFORM, 'f', "Input format, one of DER PEM"},
42 {"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
43 {"in", OPT_IN, 's', "Input file"},
44 {"out", OPT_OUT, '>', "Output file"},
45 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
46 {"pubout", OPT_PUBOUT, '-', "Output a public key"},
47 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
48 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
49 {"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
50 {"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
51 {"noout", OPT_NOOUT, '-', "Don't print key out"},
52 {"text", OPT_TEXT, '-', "Print the key in text"},
53 {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
54 {"check", OPT_CHECK, '-', "Verify key consistency"},
55 {"", OPT_CIPHER, '-', "Any supported cipher"},
56# if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
57 {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
58 {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
59 {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
60# endif
61# ifndef OPENSSL_NO_ENGINE
62 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
63# endif
64 {NULL}
65};
66
67int rsa_main(int argc, char **argv)
68{
69 ENGINE *e = NULL;
70 BIO *out = NULL;
71 RSA *rsa = NULL;
72 const EVP_CIPHER *enc = NULL;
73 char *infile = NULL, *outfile = NULL, *prog;
74 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
75 int i, private = 0;
76 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0;
77 int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
78# if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
79 int pvk_encr = 2;
80# endif
81 OPTION_CHOICE o;
82
83 prog = opt_init(argc, argv, rsa_options);
84 while ((o = opt_next()) != OPT_EOF) {
85 switch (o) {
86 case OPT_EOF:
87 case OPT_ERR:
88 opthelp:
89 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
90 goto end;
91 case OPT_HELP:
92 opt_help(rsa_options);
93 ret = 0;
94 goto end;
95 case OPT_INFORM:
96 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
97 goto opthelp;
98 break;
99 case OPT_IN:
100 infile = opt_arg();
101 break;
102 case OPT_OUTFORM:
103 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
104 goto opthelp;
105 break;
106 case OPT_OUT:
107 outfile = opt_arg();
108 break;
109 case OPT_PASSIN:
110 passinarg = opt_arg();
111 break;
112 case OPT_PASSOUT:
113 passoutarg = opt_arg();
114 break;
115 case OPT_ENGINE:
116 e = setup_engine(opt_arg(), 0);
117 break;
118 case OPT_PUBIN:
119 pubin = 1;
120 break;
121 case OPT_PUBOUT:
122 pubout = 1;
123 break;
124 case OPT_RSAPUBKEY_IN:
125 pubin = 2;
126 break;
127 case OPT_RSAPUBKEY_OUT:
128 pubout = 2;
129 break;
130 case OPT_PVK_STRONG: /* pvk_encr:= 2 */
131 case OPT_PVK_WEAK: /* pvk_encr:= 1 */
132 case OPT_PVK_NONE: /* pvk_encr:= 0 */
133# if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
134 pvk_encr = (o - OPT_PVK_NONE);
135# endif
136 break;
137 case OPT_NOOUT:
138 noout = 1;
139 break;
140 case OPT_TEXT:
141 text = 1;
142 break;
143 case OPT_MODULUS:
144 modulus = 1;
145 break;
146 case OPT_CHECK:
147 check = 1;
148 break;
149 case OPT_CIPHER:
150 if (!opt_cipher(opt_unknown(), &enc))
151 goto opthelp;
152 break;
153 }
154 }
155 argc = opt_num_rest();
156 if (argc != 0)
157 goto opthelp;
158
159 private = (text && !pubin) || (!pubout && !noout) ? 1 : 0;
160
161 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
162 BIO_printf(bio_err, "Error getting passwords\n");
163 goto end;
164 }
165 if (check && pubin) {
166 BIO_printf(bio_err, "Only private keys can be checked\n");
167 goto end;
168 }
169
170 {
171 EVP_PKEY *pkey;
172
173 if (pubin) {
174 int tmpformat = -1;
175 if (pubin == 2) {
176 if (informat == FORMAT_PEM)
177 tmpformat = FORMAT_PEMRSA;
178 else if (informat == FORMAT_ASN1)
179 tmpformat = FORMAT_ASN1RSA;
180 } else {
181 tmpformat = informat;
182 }
183
184 pkey = load_pubkey(infile, tmpformat, 1, passin, e, "Public Key");
185 } else {
186 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
187 }
188
189 if (pkey != NULL)
190 rsa = EVP_PKEY_get1_RSA(pkey);
191 EVP_PKEY_free(pkey);
192 }
193
194 if (rsa == NULL) {
195 ERR_print_errors(bio_err);
196 goto end;
197 }
198
199 out = bio_open_owner(outfile, outformat, private);
200 if (out == NULL)
201 goto end;
202
203 if (text) {
204 assert(pubin || private);
205 if (!RSA_print(out, rsa, 0)) {
206 perror(outfile);
207 ERR_print_errors(bio_err);
208 goto end;
209 }
210 }
211
212 if (modulus) {
213 const BIGNUM *n;
214 RSA_get0_key(rsa, &n, NULL, NULL);
215 BIO_printf(out, "Modulus=");
216 BN_print(out, n);
217 BIO_printf(out, "\n");
218 }
219
220 if (check) {
221 int r = RSA_check_key_ex(rsa, NULL);
222
223 if (r == 1) {
224 BIO_printf(out, "RSA key ok\n");
225 } else if (r == 0) {
226 unsigned long err;
227
228 while ((err = ERR_peek_error()) != 0 &&
229 ERR_GET_LIB(err) == ERR_LIB_RSA &&
230 ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY_EX &&
231 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) {
232 BIO_printf(out, "RSA key error: %s\n",
233 ERR_reason_error_string(err));
234 ERR_get_error(); /* remove err from error stack */
235 }
236 } else if (r == -1) {
237 ERR_print_errors(bio_err);
238 goto end;
239 }
240 }
241
242 if (noout) {
243 ret = 0;
244 goto end;
245 }
246 BIO_printf(bio_err, "writing RSA key\n");
247 if (outformat == FORMAT_ASN1) {
248 if (pubout || pubin) {
249 if (pubout == 2)
250 i = i2d_RSAPublicKey_bio(out, rsa);
251 else
252 i = i2d_RSA_PUBKEY_bio(out, rsa);
253 } else {
254 assert(private);
255 i = i2d_RSAPrivateKey_bio(out, rsa);
256 }
257 } else if (outformat == FORMAT_PEM) {
258 if (pubout || pubin) {
259 if (pubout == 2)
260 i = PEM_write_bio_RSAPublicKey(out, rsa);
261 else
262 i = PEM_write_bio_RSA_PUBKEY(out, rsa);
263 } else {
264 assert(private);
265 i = PEM_write_bio_RSAPrivateKey(out, rsa,
266 enc, NULL, 0, NULL, passout);
267 }
268# ifndef OPENSSL_NO_DSA
269 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
270 EVP_PKEY *pk;
271 pk = EVP_PKEY_new();
272 if (pk == NULL)
273 goto end;
274
275 EVP_PKEY_set1_RSA(pk, rsa);
276 if (outformat == FORMAT_PVK) {
277 if (pubin) {
278 BIO_printf(bio_err, "PVK form impossible with public key input\n");
279 EVP_PKEY_free(pk);
280 goto end;
281 }
282 assert(private);
283# ifdef OPENSSL_NO_RC4
284 BIO_printf(bio_err, "PVK format not supported\n");
285 EVP_PKEY_free(pk);
286 goto end;
287# else
288 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
289# endif
290 } else if (pubin || pubout) {
291 i = i2b_PublicKey_bio(out, pk);
292 } else {
293 assert(private);
294 i = i2b_PrivateKey_bio(out, pk);
295 }
296 EVP_PKEY_free(pk);
297# endif
298 } else {
299 BIO_printf(bio_err, "bad output format specified for outfile\n");
300 goto end;
301 }
302 if (i <= 0) {
303 BIO_printf(bio_err, "unable to write key\n");
304 ERR_print_errors(bio_err);
305 } else {
306 ret = 0;
307 }
308 end:
309 release_engine(e);
310 BIO_free_all(out);
311 RSA_free(rsa);
312 OPENSSL_free(passin);
313 OPENSSL_free(passout);
314 return ret;
315}
316#endif
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