3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
6 /* ====================================================================
7 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
60 #include <openssl/opensslconf.h>
61 #ifndef OPENSSL_NO_RSA
65 # include <openssl/err.h>
66 # include <openssl/pem.h>
67 # include <openssl/rsa.h>
71 # define RSA_ENCRYPT 3
72 # define RSA_DECRYPT 4
74 # define KEY_PRIVKEY 1
78 static void usage(void);
82 # define PROG rsautl_main
84 int MAIN(int argc, char **);
86 int MAIN(int argc, char **argv)
89 BIO *in = NULL, *out = NULL;
90 char *infile = NULL, *outfile = NULL;
91 # ifndef OPENSSL_NO_ENGINE
95 char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
96 int keyform = FORMAT_PEM;
97 char need_priv = 0, badarg = 0, rev = 0;
98 char hexdump = 0, asn1parse = 0;
100 EVP_PKEY *pkey = NULL;
102 unsigned char *rsa_in = NULL, *rsa_out = NULL, pad;
103 char *passargin = NULL, *passin = NULL;
104 int rsa_inlen, rsa_outlen = 0;
113 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
115 if (!load_config(bio_err, NULL))
117 ERR_load_crypto_strings();
118 OpenSSL_add_all_algorithms();
119 pad = RSA_PKCS1_PADDING;
122 if (!strcmp(*argv, "-in")) {
127 } else if (!strcmp(*argv, "-out")) {
132 } else if (!strcmp(*argv, "-inkey")) {
137 } else if (!strcmp(*argv, "-passin")) {
141 passargin = *(++argv);
142 } else if (strcmp(*argv, "-keyform") == 0) {
146 keyform = str2fmt(*(++argv));
147 # ifndef OPENSSL_NO_ENGINE
148 } else if (!strcmp(*argv, "-engine")) {
154 } else if (!strcmp(*argv, "-pubin")) {
155 key_type = KEY_PUBKEY;
156 } else if (!strcmp(*argv, "-certin")) {
158 } else if (!strcmp(*argv, "-asn1parse"))
160 else if (!strcmp(*argv, "-hexdump"))
162 else if (!strcmp(*argv, "-raw"))
163 pad = RSA_NO_PADDING;
164 else if (!strcmp(*argv, "-oaep"))
165 pad = RSA_PKCS1_OAEP_PADDING;
166 else if (!strcmp(*argv, "-ssl"))
167 pad = RSA_SSLV23_PADDING;
168 else if (!strcmp(*argv, "-pkcs"))
169 pad = RSA_PKCS1_PADDING;
170 else if (!strcmp(*argv, "-x931"))
171 pad = RSA_X931_PADDING;
172 else if (!strcmp(*argv, "-sign")) {
175 } else if (!strcmp(*argv, "-verify"))
176 rsa_mode = RSA_VERIFY;
177 else if (!strcmp(*argv, "-rev"))
179 else if (!strcmp(*argv, "-encrypt"))
180 rsa_mode = RSA_ENCRYPT;
181 else if (!strcmp(*argv, "-decrypt")) {
182 rsa_mode = RSA_DECRYPT;
194 if (need_priv && (key_type != KEY_PRIVKEY)) {
195 BIO_printf(bio_err, "A private key is needed for this operation\n");
198 # ifndef OPENSSL_NO_ENGINE
199 e = setup_engine(bio_err, engine, 0);
201 if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
202 BIO_printf(bio_err, "Error getting password\n");
206 /* FIXME: seed PRNG only if needed */
207 app_RAND_load_file(NULL, bio_err, 0);
211 pkey = load_key(bio_err, keyfile, keyform, 0,
212 passin, e, "Private Key");
216 pkey = load_pubkey(bio_err, keyfile, keyform, 0,
217 NULL, e, "Public Key");
221 x = load_cert(bio_err, keyfile, keyform, NULL, e, "Certificate");
223 pkey = X509_get_pubkey(x);
233 rsa = EVP_PKEY_get1_RSA(pkey);
237 BIO_printf(bio_err, "Error getting RSA key\n");
238 ERR_print_errors(bio_err);
243 if (!(in = BIO_new_file(infile, "rb"))) {
244 BIO_printf(bio_err, "Error Reading Input File\n");
245 ERR_print_errors(bio_err);
249 in = BIO_new_fp(stdin, BIO_NOCLOSE);
252 if (!(out = BIO_new_file(outfile, "wb"))) {
253 BIO_printf(bio_err, "Error Reading Output File\n");
254 ERR_print_errors(bio_err);
258 out = BIO_new_fp(stdout, BIO_NOCLOSE);
259 # ifdef OPENSSL_SYS_VMS
261 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
262 out = BIO_push(tmpbio, out);
267 keysize = RSA_size(rsa);
269 rsa_in = OPENSSL_malloc(keysize * 2);
270 rsa_out = OPENSSL_malloc(keysize);
271 if (!rsa_in || !rsa_out) {
272 BIO_printf(bio_err, "Out of memory\n");
273 ERR_print_errors(bio_err);
277 /* Read the input data */
278 rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
279 if (rsa_inlen <= 0) {
280 BIO_printf(bio_err, "Error reading input Data\n");
286 for (i = 0; i < rsa_inlen / 2; i++) {
288 rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
289 rsa_in[rsa_inlen - 1 - i] = ctmp;
295 rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
300 RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
304 rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
309 RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
314 if (rsa_outlen <= 0) {
315 BIO_printf(bio_err, "RSA operation error\n");
316 ERR_print_errors(bio_err);
321 if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
322 ERR_print_errors(bio_err);
325 BIO_dump(out, (char *)rsa_out, rsa_outlen);
327 BIO_write(out, rsa_out, rsa_outlen);
333 OPENSSL_free(rsa_in);
335 OPENSSL_free(rsa_out);
337 OPENSSL_free(passin);
343 BIO_printf(bio_err, "Usage: rsautl [options]\n");
344 BIO_printf(bio_err, "-in file input file\n");
345 BIO_printf(bio_err, "-out file output file\n");
346 BIO_printf(bio_err, "-inkey file input key\n");
347 BIO_printf(bio_err, "-keyform arg private key format - default PEM\n");
348 BIO_printf(bio_err, "-pubin input is an RSA public\n");
350 "-certin input is a certificate carrying an RSA public key\n");
351 BIO_printf(bio_err, "-ssl use SSL v2 padding\n");
352 BIO_printf(bio_err, "-raw use no padding\n");
354 "-pkcs use PKCS#1 v1.5 padding (default)\n");
355 BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n");
356 BIO_printf(bio_err, "-sign sign with private key\n");
357 BIO_printf(bio_err, "-verify verify with public key\n");
358 BIO_printf(bio_err, "-encrypt encrypt with public key\n");
359 BIO_printf(bio_err, "-decrypt decrypt with private key\n");
360 BIO_printf(bio_err, "-hexdump hex dump output\n");
361 # ifndef OPENSSL_NO_ENGINE
363 "-engine e use engine e, possibly a hardware device.\n");
364 BIO_printf(bio_err, "-passin arg pass phrase source\n");
369 #else /* !OPENSSL_NO_RSA */
372 static void *dummy = &dummy;