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Deprecate the low level RC5 functions
[thirdparty/openssl.git] / apps / rsa.c
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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
3eeaab4b 10#include <openssl/opensslconf.h>
effaf4de
RS
11#ifdef OPENSSL_NO_RSA
12NON_EMPTY_TRANSLATION_UNIT
13#else
14
0f113f3e
MC
15# include <stdio.h>
16# include <stdlib.h>
17# include <string.h>
18# include <time.h>
19# include "apps.h"
dab2cd68 20# include "progs.h"
0f113f3e
MC
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
7e1b7485
RS
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,
e7917e38
F
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
7e1b7485
RS
37} OPTION_CHOICE;
38
44c83ebd 39const OPTIONS rsa_options[] = {
5388f986 40 OPT_SECTION("General"),
7e1b7485 41 {"help", OPT_HELP, '-', "Display this summary"},
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RS
42 {"check", OPT_CHECK, '-', "Verify key consistency"},
43 {"", OPT_CIPHER, '-', "Any supported cipher"},
44# ifndef OPENSSL_NO_ENGINE
45 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
46# endif
47
48 OPT_SECTION("Input"),
dd958974 49 {"in", OPT_IN, 's', "Input file"},
5388f986 50 {"inform", OPT_INFORM, 'f', "Input format, one of DER PEM"},
7e1b7485 51 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
bc2f5803 52 {"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
5388f986
RS
53 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
54
55 OPT_SECTION("Output"),
56 {"out", OPT_OUT, '>', "Output file"},
57 {"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
58 {"pubout", OPT_PUBOUT, '-', "Output a public key"},
bc2f5803 59 {"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
5388f986 60 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
7e1b7485
RS
61 {"noout", OPT_NOOUT, '-', "Don't print key out"},
62 {"text", OPT_TEXT, '-', "Print the key in text"},
63 {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
5388f986 64
e5452d40 65# if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
5388f986 66 OPT_SECTION("PVK"),
e7917e38
F
67 {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
68 {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
69 {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
7e1b7485
RS
70# endif
71 {NULL}
72};
667ac4ec 73
7e1b7485 74int rsa_main(int argc, char **argv)
0f113f3e
MC
75{
76 ENGINE *e = NULL;
7e1b7485 77 BIO *out = NULL;
0f113f3e 78 RSA *rsa = NULL;
0f113f3e 79 const EVP_CIPHER *enc = NULL;
333b070e 80 char *infile = NULL, *outfile = NULL, *prog;
7e1b7485 81 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
3b061a00 82 int i, private = 0;
7e1b7485 83 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0;
83ae8124
MC
84 int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
85# if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
86 int pvk_encr = 2;
e5452d40 87# endif
7e1b7485
RS
88 OPTION_CHOICE o;
89
90 prog = opt_init(argc, argv, rsa_options);
91 while ((o = opt_next()) != OPT_EOF) {
92 switch (o) {
93 case OPT_EOF:
94 case OPT_ERR:
7e1b7485
RS
95 opthelp:
96 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
97 goto end;
98 case OPT_HELP:
99 opt_help(rsa_options);
100 ret = 0;
101 goto end;
102 case OPT_INFORM:
103 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
104 goto opthelp;
105 break;
106 case OPT_IN:
107 infile = opt_arg();
108 break;
109 case OPT_OUTFORM:
110 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
111 goto opthelp;
112 break;
113 case OPT_OUT:
114 outfile = opt_arg();
115 break;
116 case OPT_PASSIN:
117 passinarg = opt_arg();
118 break;
119 case OPT_PASSOUT:
120 passoutarg = opt_arg();
121 break;
122 case OPT_ENGINE:
333b070e 123 e = setup_engine(opt_arg(), 0);
7e1b7485
RS
124 break;
125 case OPT_PUBIN:
0f113f3e 126 pubin = 1;
7e1b7485
RS
127 break;
128 case OPT_PUBOUT:
0f113f3e 129 pubout = 1;
7e1b7485
RS
130 break;
131 case OPT_RSAPUBKEY_IN:
0f113f3e 132 pubin = 2;
7e1b7485
RS
133 break;
134 case OPT_RSAPUBKEY_OUT:
0f113f3e 135 pubout = 2;
7e1b7485 136 break;
e7917e38
F
137 case OPT_PVK_STRONG: /* pvk_encr:= 2 */
138 case OPT_PVK_WEAK: /* pvk_encr:= 1 */
139 case OPT_PVK_NONE: /* pvk_encr:= 0 */
83ae8124 140# if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
e7917e38 141 pvk_encr = (o - OPT_PVK_NONE);
e5452d40 142# endif
e7917e38 143 break;
7e1b7485 144 case OPT_NOOUT:
0f113f3e 145 noout = 1;
7e1b7485
RS
146 break;
147 case OPT_TEXT:
0f113f3e 148 text = 1;
7e1b7485
RS
149 break;
150 case OPT_MODULUS:
0f113f3e 151 modulus = 1;
7e1b7485
RS
152 break;
153 case OPT_CHECK:
0f113f3e 154 check = 1;
7e1b7485
RS
155 break;
156 case OPT_CIPHER:
157 if (!opt_cipher(opt_unknown(), &enc))
158 goto opthelp;
0f113f3e
MC
159 break;
160 }
0f113f3e 161 }
7e1b7485 162 argc = opt_num_rest();
03358517
KR
163 if (argc != 0)
164 goto opthelp;
165
7eff6aa0 166 private = (text && !pubin) || (!pubout && !noout) ? 1 : 0;
0f113f3e 167
7e1b7485 168 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
0f113f3e
MC
169 BIO_printf(bio_err, "Error getting passwords\n");
170 goto end;
171 }
0f113f3e
MC
172 if (check && pubin) {
173 BIO_printf(bio_err, "Only private keys can be checked\n");
174 goto end;
175 }
176
0f113f3e
MC
177 {
178 EVP_PKEY *pkey;
179
180 if (pubin) {
181 int tmpformat = -1;
182 if (pubin == 2) {
183 if (informat == FORMAT_PEM)
184 tmpformat = FORMAT_PEMRSA;
185 else if (informat == FORMAT_ASN1)
186 tmpformat = FORMAT_ASN1RSA;
2234212c 187 } else {
0f113f3e 188 tmpformat = informat;
2234212c 189 }
0f113f3e 190
7e1b7485 191 pkey = load_pubkey(infile, tmpformat, 1, passin, e, "Public Key");
2234212c 192 } else {
7e1b7485 193 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
2234212c 194 }
0f113f3e
MC
195
196 if (pkey != NULL)
197 rsa = EVP_PKEY_get1_RSA(pkey);
198 EVP_PKEY_free(pkey);
199 }
200
201 if (rsa == NULL) {
202 ERR_print_errors(bio_err);
203 goto end;
204 }
205
bdd58d98 206 out = bio_open_owner(outfile, outformat, private);
7e1b7485
RS
207 if (out == NULL)
208 goto end;
0f113f3e 209
3b061a00 210 if (text) {
7eff6aa0 211 assert(pubin || private);
0f113f3e
MC
212 if (!RSA_print(out, rsa, 0)) {
213 perror(outfile);
214 ERR_print_errors(bio_err);
215 goto end;
216 }
3b061a00 217 }
0f113f3e
MC
218
219 if (modulus) {
2ac6115d 220 const BIGNUM *n;
9862e9aa 221 RSA_get0_key(rsa, &n, NULL, NULL);
0f113f3e 222 BIO_printf(out, "Modulus=");
9862e9aa 223 BN_print(out, n);
0f113f3e
MC
224 BIO_printf(out, "\n");
225 }
226
227 if (check) {
03883e7e 228 int r = RSA_check_key_ex(rsa, NULL);
0f113f3e 229
2234212c 230 if (r == 1) {
0f113f3e 231 BIO_printf(out, "RSA key ok\n");
2234212c 232 } else if (r == 0) {
0f113f3e
MC
233 unsigned long err;
234
235 while ((err = ERR_peek_error()) != 0 &&
236 ERR_GET_LIB(err) == ERR_LIB_RSA &&
0f113f3e
MC
237 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) {
238 BIO_printf(out, "RSA key error: %s\n",
239 ERR_reason_error_string(err));
67d4fee8 240 ERR_get_error(); /* remove err from error stack */
0f113f3e 241 }
63db6b77 242 } else if (r == -1) {
0f113f3e
MC
243 ERR_print_errors(bio_err);
244 goto end;
245 }
246 }
247
248 if (noout) {
249 ret = 0;
250 goto end;
251 }
252 BIO_printf(bio_err, "writing RSA key\n");
253 if (outformat == FORMAT_ASN1) {
254 if (pubout || pubin) {
255 if (pubout == 2)
256 i = i2d_RSAPublicKey_bio(out, rsa);
257 else
258 i = i2d_RSA_PUBKEY_bio(out, rsa);
3b061a00
RS
259 } else {
260 assert(private);
0f113f3e 261 i = i2d_RSAPrivateKey_bio(out, rsa);
3b061a00 262 }
2234212c 263 } else if (outformat == FORMAT_PEM) {
0f113f3e
MC
264 if (pubout || pubin) {
265 if (pubout == 2)
266 i = PEM_write_bio_RSAPublicKey(out, rsa);
267 else
268 i = PEM_write_bio_RSA_PUBKEY(out, rsa);
3b061a00
RS
269 } else {
270 assert(private);
0f113f3e
MC
271 i = PEM_write_bio_RSAPrivateKey(out, rsa,
272 enc, NULL, 0, NULL, passout);
3b061a00 273 }
b6c68982 274# ifndef OPENSSL_NO_DSA
0f113f3e
MC
275 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
276 EVP_PKEY *pk;
277 pk = EVP_PKEY_new();
d896b79b
MA
278 if (pk == NULL)
279 goto end;
280
0f113f3e 281 EVP_PKEY_set1_RSA(pk, rsa);
7eff6aa0
VD
282 if (outformat == FORMAT_PVK) {
283 if (pubin) {
284 BIO_printf(bio_err, "PVK form impossible with public key input\n");
285 EVP_PKEY_free(pk);
286 goto end;
287 }
288 assert(private);
b6c68982
DSH
289# ifdef OPENSSL_NO_RC4
290 BIO_printf(bio_err, "PVK format not supported\n");
291 EVP_PKEY_free(pk);
292 goto end;
293# else
0f113f3e 294 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
b6c68982 295# endif
7eff6aa0 296 } else if (pubin || pubout) {
0f113f3e 297 i = i2b_PublicKey_bio(out, pk);
7eff6aa0 298 } else {
3b061a00 299 assert(private);
0f113f3e 300 i = i2b_PrivateKey_bio(out, pk);
3b061a00 301 }
0f113f3e
MC
302 EVP_PKEY_free(pk);
303# endif
304 } else {
305 BIO_printf(bio_err, "bad output format specified for outfile\n");
306 goto end;
307 }
308 if (i <= 0) {
309 BIO_printf(bio_err, "unable to write key\n");
310 ERR_print_errors(bio_err);
2234212c 311 } else {
0f113f3e 312 ret = 0;
2234212c 313 }
0f113f3e 314 end:
dd1abd44 315 release_engine(e);
ca3a82c3 316 BIO_free_all(out);
d6407083 317 RSA_free(rsa);
b548a1f1
RS
318 OPENSSL_free(passin);
319 OPENSSL_free(passout);
26a7d938 320 return ret;
0f113f3e 321}
f5d7a031 322#endif