]> git.ipfire.org Git - thirdparty/openssl.git/blame - apps/rsa.c
Fix krb5 external test
[thirdparty/openssl.git] / apps / rsa.c
CommitLineData
846e33c7 1/*
6738bf14 2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6 3 *
dffa7520 4 * Licensed under the Apache License 2.0 (the "License"). You may not use
846e33c7
RS
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
7e1b7485 8 */
d02b48c6 9
c5f87134
P
10/* We need to use the deprecated RSA low level calls */
11#define OPENSSL_SUPPRESS_DEPRECATED
12
3eeaab4b 13#include <openssl/opensslconf.h>
effaf4de
RS
14#ifdef OPENSSL_NO_RSA
15NON_EMPTY_TRANSLATION_UNIT
16#else
17
0f113f3e
MC
18# include <stdio.h>
19# include <stdlib.h>
20# include <string.h>
21# include <time.h>
22# include "apps.h"
dab2cd68 23# include "progs.h"
0f113f3e
MC
24# include <openssl/bio.h>
25# include <openssl/err.h>
26# include <openssl/rsa.h>
27# include <openssl/evp.h>
28# include <openssl/x509.h>
29# include <openssl/pem.h>
30# include <openssl/bn.h>
31
7e1b7485
RS
32typedef enum OPTION_choice {
33 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
34 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
35 OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
e7917e38
F
36 OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
37 /* Do not change the order here; see case statements below */
38 OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
6bd4e3f2
P
39 OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER,
40 OPT_PROV_ENUM
7e1b7485
RS
41} OPTION_CHOICE;
42
44c83ebd 43const OPTIONS rsa_options[] = {
5388f986 44 OPT_SECTION("General"),
7e1b7485 45 {"help", OPT_HELP, '-', "Display this summary"},
5388f986
RS
46 {"check", OPT_CHECK, '-', "Verify key consistency"},
47 {"", OPT_CIPHER, '-', "Any supported cipher"},
48# ifndef OPENSSL_NO_ENGINE
49 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
50# endif
51
52 OPT_SECTION("Input"),
dd958974 53 {"in", OPT_IN, 's', "Input file"},
5388f986 54 {"inform", OPT_INFORM, 'f', "Input format, one of DER PEM"},
7e1b7485 55 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
bc2f5803 56 {"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
5388f986
RS
57 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
58
59 OPT_SECTION("Output"),
60 {"out", OPT_OUT, '>', "Output file"},
61 {"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
62 {"pubout", OPT_PUBOUT, '-', "Output a public key"},
bc2f5803 63 {"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
5388f986 64 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
7e1b7485
RS
65 {"noout", OPT_NOOUT, '-', "Don't print key out"},
66 {"text", OPT_TEXT, '-', "Print the key in text"},
67 {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
5388f986 68
e5452d40 69# if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
5388f986 70 OPT_SECTION("PVK"),
e7917e38
F
71 {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
72 {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
73 {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
7e1b7485 74# endif
6bd4e3f2
P
75
76 OPT_PROV_OPTIONS,
7e1b7485
RS
77 {NULL}
78};
667ac4ec 79
7e1b7485 80int rsa_main(int argc, char **argv)
0f113f3e
MC
81{
82 ENGINE *e = NULL;
7e1b7485 83 BIO *out = NULL;
0f113f3e 84 RSA *rsa = NULL;
0f113f3e 85 const EVP_CIPHER *enc = NULL;
333b070e 86 char *infile = NULL, *outfile = NULL, *prog;
7e1b7485 87 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
3b061a00 88 int i, private = 0;
7e1b7485 89 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0;
83ae8124
MC
90 int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
91# if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
92 int pvk_encr = 2;
e5452d40 93# endif
7e1b7485
RS
94 OPTION_CHOICE o;
95
96 prog = opt_init(argc, argv, rsa_options);
97 while ((o = opt_next()) != OPT_EOF) {
98 switch (o) {
99 case OPT_EOF:
100 case OPT_ERR:
7e1b7485
RS
101 opthelp:
102 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
103 goto end;
104 case OPT_HELP:
105 opt_help(rsa_options);
106 ret = 0;
107 goto end;
108 case OPT_INFORM:
109 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
110 goto opthelp;
111 break;
112 case OPT_IN:
113 infile = opt_arg();
114 break;
115 case OPT_OUTFORM:
116 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
117 goto opthelp;
118 break;
119 case OPT_OUT:
120 outfile = opt_arg();
121 break;
122 case OPT_PASSIN:
123 passinarg = opt_arg();
124 break;
125 case OPT_PASSOUT:
126 passoutarg = opt_arg();
127 break;
128 case OPT_ENGINE:
333b070e 129 e = setup_engine(opt_arg(), 0);
7e1b7485
RS
130 break;
131 case OPT_PUBIN:
0f113f3e 132 pubin = 1;
7e1b7485
RS
133 break;
134 case OPT_PUBOUT:
0f113f3e 135 pubout = 1;
7e1b7485
RS
136 break;
137 case OPT_RSAPUBKEY_IN:
0f113f3e 138 pubin = 2;
7e1b7485
RS
139 break;
140 case OPT_RSAPUBKEY_OUT:
0f113f3e 141 pubout = 2;
7e1b7485 142 break;
e7917e38
F
143 case OPT_PVK_STRONG: /* pvk_encr:= 2 */
144 case OPT_PVK_WEAK: /* pvk_encr:= 1 */
145 case OPT_PVK_NONE: /* pvk_encr:= 0 */
83ae8124 146# if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
e7917e38 147 pvk_encr = (o - OPT_PVK_NONE);
e5452d40 148# endif
e7917e38 149 break;
7e1b7485 150 case OPT_NOOUT:
0f113f3e 151 noout = 1;
7e1b7485
RS
152 break;
153 case OPT_TEXT:
0f113f3e 154 text = 1;
7e1b7485
RS
155 break;
156 case OPT_MODULUS:
0f113f3e 157 modulus = 1;
7e1b7485
RS
158 break;
159 case OPT_CHECK:
0f113f3e 160 check = 1;
7e1b7485
RS
161 break;
162 case OPT_CIPHER:
163 if (!opt_cipher(opt_unknown(), &enc))
164 goto opthelp;
0f113f3e 165 break;
6bd4e3f2
P
166 case OPT_PROV_CASES:
167 if (!opt_provider(o))
168 goto end;
169 break;
0f113f3e 170 }
0f113f3e 171 }
7e1b7485 172 argc = opt_num_rest();
03358517
KR
173 if (argc != 0)
174 goto opthelp;
175
7eff6aa0 176 private = (text && !pubin) || (!pubout && !noout) ? 1 : 0;
0f113f3e 177
7e1b7485 178 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
0f113f3e
MC
179 BIO_printf(bio_err, "Error getting passwords\n");
180 goto end;
181 }
0f113f3e
MC
182 if (check && pubin) {
183 BIO_printf(bio_err, "Only private keys can be checked\n");
184 goto end;
185 }
186
0f113f3e
MC
187 {
188 EVP_PKEY *pkey;
189
190 if (pubin) {
191 int tmpformat = -1;
192 if (pubin == 2) {
193 if (informat == FORMAT_PEM)
194 tmpformat = FORMAT_PEMRSA;
195 else if (informat == FORMAT_ASN1)
196 tmpformat = FORMAT_ASN1RSA;
2234212c 197 } else {
0f113f3e 198 tmpformat = informat;
2234212c 199 }
0f113f3e 200
7e1b7485 201 pkey = load_pubkey(infile, tmpformat, 1, passin, e, "Public Key");
2234212c 202 } else {
7e1b7485 203 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
2234212c 204 }
0f113f3e
MC
205
206 if (pkey != NULL)
207 rsa = EVP_PKEY_get1_RSA(pkey);
208 EVP_PKEY_free(pkey);
209 }
210
211 if (rsa == NULL) {
212 ERR_print_errors(bio_err);
213 goto end;
214 }
215
bdd58d98 216 out = bio_open_owner(outfile, outformat, private);
7e1b7485
RS
217 if (out == NULL)
218 goto end;
0f113f3e 219
3b061a00 220 if (text) {
7eff6aa0 221 assert(pubin || private);
0f113f3e
MC
222 if (!RSA_print(out, rsa, 0)) {
223 perror(outfile);
224 ERR_print_errors(bio_err);
225 goto end;
226 }
3b061a00 227 }
0f113f3e
MC
228
229 if (modulus) {
2ac6115d 230 const BIGNUM *n;
9862e9aa 231 RSA_get0_key(rsa, &n, NULL, NULL);
0f113f3e 232 BIO_printf(out, "Modulus=");
9862e9aa 233 BN_print(out, n);
0f113f3e
MC
234 BIO_printf(out, "\n");
235 }
236
237 if (check) {
03883e7e 238 int r = RSA_check_key_ex(rsa, NULL);
0f113f3e 239
2234212c 240 if (r == 1) {
0f113f3e 241 BIO_printf(out, "RSA key ok\n");
2234212c 242 } else if (r == 0) {
0f113f3e
MC
243 unsigned long err;
244
245 while ((err = ERR_peek_error()) != 0 &&
246 ERR_GET_LIB(err) == ERR_LIB_RSA &&
0f113f3e
MC
247 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) {
248 BIO_printf(out, "RSA key error: %s\n",
249 ERR_reason_error_string(err));
67d4fee8 250 ERR_get_error(); /* remove err from error stack */
0f113f3e 251 }
63db6b77 252 } else if (r == -1) {
0f113f3e
MC
253 ERR_print_errors(bio_err);
254 goto end;
255 }
256 }
257
258 if (noout) {
259 ret = 0;
260 goto end;
261 }
262 BIO_printf(bio_err, "writing RSA key\n");
263 if (outformat == FORMAT_ASN1) {
264 if (pubout || pubin) {
265 if (pubout == 2)
266 i = i2d_RSAPublicKey_bio(out, rsa);
267 else
268 i = i2d_RSA_PUBKEY_bio(out, rsa);
3b061a00
RS
269 } else {
270 assert(private);
0f113f3e 271 i = i2d_RSAPrivateKey_bio(out, rsa);
3b061a00 272 }
2234212c 273 } else if (outformat == FORMAT_PEM) {
0f113f3e
MC
274 if (pubout || pubin) {
275 if (pubout == 2)
276 i = PEM_write_bio_RSAPublicKey(out, rsa);
277 else
278 i = PEM_write_bio_RSA_PUBKEY(out, rsa);
3b061a00
RS
279 } else {
280 assert(private);
0f113f3e
MC
281 i = PEM_write_bio_RSAPrivateKey(out, rsa,
282 enc, NULL, 0, NULL, passout);
3b061a00 283 }
b6c68982 284# ifndef OPENSSL_NO_DSA
0f113f3e
MC
285 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
286 EVP_PKEY *pk;
287 pk = EVP_PKEY_new();
d896b79b
MA
288 if (pk == NULL)
289 goto end;
290
0f113f3e 291 EVP_PKEY_set1_RSA(pk, rsa);
7eff6aa0
VD
292 if (outformat == FORMAT_PVK) {
293 if (pubin) {
294 BIO_printf(bio_err, "PVK form impossible with public key input\n");
295 EVP_PKEY_free(pk);
296 goto end;
297 }
298 assert(private);
b6c68982
DSH
299# ifdef OPENSSL_NO_RC4
300 BIO_printf(bio_err, "PVK format not supported\n");
301 EVP_PKEY_free(pk);
302 goto end;
303# else
0f113f3e 304 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
b6c68982 305# endif
7eff6aa0 306 } else if (pubin || pubout) {
0f113f3e 307 i = i2b_PublicKey_bio(out, pk);
7eff6aa0 308 } else {
3b061a00 309 assert(private);
0f113f3e 310 i = i2b_PrivateKey_bio(out, pk);
3b061a00 311 }
0f113f3e
MC
312 EVP_PKEY_free(pk);
313# endif
314 } else {
315 BIO_printf(bio_err, "bad output format specified for outfile\n");
316 goto end;
317 }
318 if (i <= 0) {
319 BIO_printf(bio_err, "unable to write key\n");
320 ERR_print_errors(bio_err);
2234212c 321 } else {
0f113f3e 322 ret = 0;
2234212c 323 }
0f113f3e 324 end:
dd1abd44 325 release_engine(e);
ca3a82c3 326 BIO_free_all(out);
d6407083 327 RSA_free(rsa);
b548a1f1
RS
328 OPENSSL_free(passin);
329 OPENSSL_free(passout);
26a7d938 330 return ret;
0f113f3e 331}
f5d7a031 332#endif