2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
60 #include <openssl/err.h>
61 #include <openssl/pem.h>
72 static void usage(void);
76 #define PROG rsautl_main
78 int MAIN(int argc, char **);
80 int MAIN(int argc, char **argv)
82 BIO *in = NULL, *out = NULL;
83 char *infile = NULL, *outfile = NULL;
85 char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
86 int keyform = FORMAT_PEM;
87 char need_priv = 0, badarg = 0, rev = 0;
88 char hexdump = 0, asn1parse = 0;
90 EVP_PKEY *pkey = NULL;
92 unsigned char *rsa_in = NULL, *rsa_out = NULL, pad;
93 int rsa_inlen, rsa_outlen = 0;
101 if(!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
102 ERR_load_crypto_strings();
103 OpenSSL_add_all_algorithms();
104 pad = RSA_PKCS1_PADDING;
108 if (!strcmp(*argv,"-in")) {
109 if (--argc < 1) badarg = 1;
111 } else if (!strcmp(*argv,"-out")) {
112 if (--argc < 1) badarg = 1;
114 } else if(!strcmp(*argv, "-inkey")) {
115 if (--argc < 1) badarg = 1;
117 } else if(!strcmp(*argv, "-pubin")) {
118 key_type = KEY_PUBKEY;
119 } else if(!strcmp(*argv, "-certin")) {
122 else if(!strcmp(*argv, "-asn1parse")) asn1parse = 1;
123 else if(!strcmp(*argv, "-hexdump")) hexdump = 1;
124 else if(!strcmp(*argv, "-raw")) pad = RSA_NO_PADDING;
125 else if(!strcmp(*argv, "-oaep")) pad = RSA_PKCS1_OAEP_PADDING;
126 else if(!strcmp(*argv, "-ssl")) pad = RSA_SSLV23_PADDING;
127 else if(!strcmp(*argv, "-pkcs")) pad = RSA_PKCS1_PADDING;
128 else if(!strcmp(*argv, "-sign")) {
131 } else if(!strcmp(*argv, "-verify")) rsa_mode = RSA_VERIFY;
132 else if(!strcmp(*argv, "-rev")) rev = 1;
133 else if(!strcmp(*argv, "-encrypt")) rsa_mode = RSA_ENCRYPT;
134 else if(!strcmp(*argv, "-decrypt")) {
135 rsa_mode = RSA_DECRYPT;
146 if(need_priv && (key_type != KEY_PRIVKEY)) {
147 BIO_printf(bio_err, "A private key is needed for this operation\n");
151 /* FIXME: seed PRNG only if needed */
152 app_RAND_load_file(NULL, bio_err, 0);
156 pkey = load_key(bio_err, keyfile, keyform, NULL);
160 pkey = load_pubkey(bio_err, keyfile, keyform);
164 x = load_cert(bio_err, keyfile, keyform);
166 pkey = X509_get_pubkey(x);
173 BIO_printf(bio_err, "Error loading key\n");
177 rsa = EVP_PKEY_get1_RSA(pkey);
181 BIO_printf(bio_err, "Error getting RSA key\n");
182 ERR_print_errors(bio_err);
188 if(!(in = BIO_new_file(infile, "rb"))) {
189 BIO_printf(bio_err, "Error Reading Input File\n");
190 ERR_print_errors(bio_err);
193 } else in = BIO_new_fp(stdin, BIO_NOCLOSE);
196 if(!(out = BIO_new_file(outfile, "wb"))) {
197 BIO_printf(bio_err, "Error Reading Output File\n");
198 ERR_print_errors(bio_err);
201 } else out = BIO_new_fp(stdout, BIO_NOCLOSE);
203 keysize = RSA_size(rsa);
205 rsa_in = OPENSSL_malloc(keysize * 2);
206 rsa_out = OPENSSL_malloc(keysize);
208 /* Read the input data */
209 rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
211 BIO_printf(bio_err, "Error reading input Data\n");
217 for(i = 0; i < rsa_inlen/2; i++) {
219 rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
220 rsa_in[rsa_inlen - 1 - i] = ctmp;
226 rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
230 rsa_outlen = RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
234 rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
238 rsa_outlen = RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
243 if(rsa_outlen <= 0) {
244 BIO_printf(bio_err, "RSA operation error\n");
245 ERR_print_errors(bio_err);
250 if(!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
251 ERR_print_errors(bio_err);
253 } else if(hexdump) BIO_dump(out, (char *)rsa_out, rsa_outlen);
254 else BIO_write(out, rsa_out, rsa_outlen);
259 if(rsa_in) OPENSSL_free(rsa_in);
260 if(rsa_out) OPENSSL_free(rsa_out);
266 BIO_printf(bio_err, "Usage: rsautl [options]\n");
267 BIO_printf(bio_err, "-in file input file\n");
268 BIO_printf(bio_err, "-out file output file\n");
269 BIO_printf(bio_err, "-inkey file input key\n");
270 BIO_printf(bio_err, "-pubin input is an RSA public\n");
271 BIO_printf(bio_err, "-certin input is a certificate carrying an RSA public key\n");
272 BIO_printf(bio_err, "-ssl use SSL v2 padding\n");
273 BIO_printf(bio_err, "-raw use no padding\n");
274 BIO_printf(bio_err, "-pkcs use PKCS#1 v1.5 padding (default)\n");
275 BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n");
276 BIO_printf(bio_err, "-sign sign with private key\n");
277 BIO_printf(bio_err, "-verify verify with public key\n");
278 BIO_printf(bio_err, "-encrypt encrypt with public key\n");
279 BIO_printf(bio_err, "-decrypt decrypt with private key\n");
280 BIO_printf(bio_err, "-hexdump hex dump output\n");