2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
5 /* ====================================================================
6 * Copyright (c) 2006 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).
61 #include <openssl/err.h>
62 #include <openssl/pem.h>
63 #include <openssl/evp.h>
69 static EVP_PKEY_CTX *init_ctx(int *pkeysize,
70 char *keyfile, int keyform, int key_type,
71 char *passinarg, int pkey_op, ENGINE *e);
73 static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file);
75 static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
76 unsigned char *out, size_t *poutlen,
77 unsigned char *in, size_t inlen);
79 typedef enum OPTION_choice {
80 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
81 OPT_ENGINE, OPT_IN, OPT_OUT,
82 OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN,
83 OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
84 OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN,
85 OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT
88 OPTIONS pkeyutl_options[] = {
89 {"help", OPT_HELP, '-', "Display this summary"},
90 {"in", OPT_IN, '<', "Input file"},
91 {"out", OPT_OUT, '>', "Output file"},
92 {"pubin", OPT_PUBIN, '-', "Input is a public key"},
93 {"certin", OPT_CERTIN, '-', "Input is a cert with a public key"},
94 {"asn1parse", OPT_ASN1PARSE, '-'},
95 {"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
96 {"sign", OPT_SIGN, '-', "Sign with private key"},
97 {"verify", OPT_VERIFY, '-', "Verify with public key"},
98 {"verifyrecover", OPT_VERIFYRECOVER, '-',
99 "Verify with public key, recover original data"},
100 {"rev", OPT_REV, '-'},
101 {"encrypt", OPT_ENCRYPT, '-', "Encrypt with public key"},
102 {"decrypt", OPT_DECRYPT, '-', "Decrypt with private key"},
103 {"derive", OPT_DERIVE, '-', "Derive shared secret"},
104 {"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"},
105 {"inkey", OPT_INKEY, 's', "Input key"},
106 {"peerkey", OPT_PEERKEY, 's'},
107 {"passin", OPT_PASSIN, 's', "Pass phrase source"},
108 {"peerform", OPT_PEERFORM, 'F'},
109 {"keyform", OPT_KEYFORM, 'F', "Private key format - default PEM"},
110 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
111 #ifndef OPENSSL_NO_ENGINE
112 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
117 int pkeyutl_main(int argc, char **argv)
119 BIO *in = NULL, *out = NULL;
121 EVP_PKEY_CTX *ctx = NULL;
122 char *infile = NULL, *outfile = NULL, *sigfile = NULL, *passinarg = NULL;
123 char hexdump = 0, asn1parse = 0, rev = 0, *prog;
124 unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
126 int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform =
128 int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
129 int ret = 1, rv = -1;
132 prog = opt_init(argc, argv, pkeyutl_options);
133 while ((o = opt_next()) != OPT_EOF) {
138 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
141 opt_help(pkeyutl_options);
154 ctx = init_ctx(&keysize, opt_arg(), keyform, key_type,
155 passinarg, pkey_op, e);
157 BIO_puts(bio_err, "%s: Error initializing context\n");
158 ERR_print_errors(bio_err);
163 if (!setup_peer(ctx, peerform, opt_arg()))
167 passinarg = opt_arg();
170 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &peerform))
174 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyform))
177 #ifndef OPENSSL_NO_ENGINE
179 e = setup_engine(opt_arg(), 0);
183 key_type = KEY_PUBKEY;
195 pkey_op = EVP_PKEY_OP_SIGN;
198 pkey_op = EVP_PKEY_OP_VERIFY;
200 case OPT_VERIFYRECOVER:
201 pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
206 pkey_op = EVP_PKEY_OP_ENCRYPT;
209 pkey_op = EVP_PKEY_OP_DECRYPT;
212 pkey_op = EVP_PKEY_OP_DERIVE;
217 "%s: Must have -inkey before -pkeyopt\n", prog);
220 if (pkey_ctrl_string(ctx, opt_arg()) <= 0) {
221 BIO_printf(bio_err, "%s: Can't set parameter:\n", prog);
222 ERR_print_errors(bio_err);
228 argc = opt_num_rest();
234 if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
236 "%s: Signature file specified for non verify\n", prog);
240 if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
242 "%s: No signature file specified for verify\n", prog);
246 /* FIXME: seed PRNG only if needed */
247 app_RAND_load_file(NULL, 0);
249 if (pkey_op != EVP_PKEY_OP_DERIVE) {
250 in = bio_open_default(infile, "rb");
254 out = bio_open_default(outfile, "wb");
259 BIO *sigbio = BIO_new_file(sigfile, "rb");
261 BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
264 siglen = bio_to_mem(&sig, keysize * 10, sigbio);
267 BIO_printf(bio_err, "Error reading signature data\n");
273 /* Read the input data */
274 buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
275 if (buf_inlen <= 0) {
276 BIO_printf(bio_err, "Error reading input Data\n");
282 size_t l = (size_t)buf_inlen;
283 for (i = 0; i < l / 2; i++) {
285 buf_in[i] = buf_in[l - 1 - i];
286 buf_in[l - 1 - i] = ctmp;
291 if (pkey_op == EVP_PKEY_OP_VERIFY) {
292 rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
293 buf_in, (size_t)buf_inlen);
295 BIO_puts(out, "Signature Verified Successfully\n");
298 BIO_puts(out, "Signature Verification Failure\n");
301 rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
302 buf_in, (size_t)buf_inlen);
304 buf_out = OPENSSL_malloc(buf_outlen);
308 rv = do_keyop(ctx, pkey_op,
309 buf_out, (size_t *)&buf_outlen,
310 buf_in, (size_t)buf_inlen);
313 ERR_print_errors(bio_err);
319 if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
320 ERR_print_errors(bio_err);
322 BIO_dump(out, (char *)buf_out, buf_outlen);
324 BIO_write(out, buf_out, buf_outlen);
327 EVP_PKEY_CTX_free(ctx);
331 OPENSSL_free(buf_in);
333 OPENSSL_free(buf_out);
339 static EVP_PKEY_CTX *init_ctx(int *pkeysize,
340 char *keyfile, int keyform, int key_type,
341 char *passinarg, int pkey_op, ENGINE *e)
343 EVP_PKEY *pkey = NULL;
344 EVP_PKEY_CTX *ctx = NULL;
348 if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
349 || (pkey_op == EVP_PKEY_OP_DERIVE))
350 && (key_type != KEY_PRIVKEY)) {
351 BIO_printf(bio_err, "A private key is needed for this operation\n");
354 if (!app_passwd(passinarg, NULL, &passin, NULL)) {
355 BIO_printf(bio_err, "Error getting password\n");
360 pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
364 pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "Public Key");
368 x = load_cert(keyfile, keyform, NULL, e, "Certificate");
370 pkey = X509_get_pubkey(x);
377 *pkeysize = EVP_PKEY_size(pkey);
382 ctx = EVP_PKEY_CTX_new(pkey, e);
390 case EVP_PKEY_OP_SIGN:
391 rv = EVP_PKEY_sign_init(ctx);
394 case EVP_PKEY_OP_VERIFY:
395 rv = EVP_PKEY_verify_init(ctx);
398 case EVP_PKEY_OP_VERIFYRECOVER:
399 rv = EVP_PKEY_verify_recover_init(ctx);
402 case EVP_PKEY_OP_ENCRYPT:
403 rv = EVP_PKEY_encrypt_init(ctx);
406 case EVP_PKEY_OP_DECRYPT:
407 rv = EVP_PKEY_decrypt_init(ctx);
410 case EVP_PKEY_OP_DERIVE:
411 rv = EVP_PKEY_derive_init(ctx);
416 EVP_PKEY_CTX_free(ctx);
423 OPENSSL_free(passin);
429 static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file)
431 EVP_PKEY *peer = NULL;
434 BIO_puts(bio_err, "-peerkey command before -inkey\n");
438 peer = load_pubkey(file, peerform, 0, NULL, NULL, "Peer Key");
441 BIO_printf(bio_err, "Error reading peer key %s\n", file);
442 ERR_print_errors(bio_err);
446 ret = EVP_PKEY_derive_set_peer(ctx, peer);
450 ERR_print_errors(bio_err);
454 static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
455 unsigned char *out, size_t *poutlen,
456 unsigned char *in, size_t inlen)
460 case EVP_PKEY_OP_VERIFYRECOVER:
461 rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
464 case EVP_PKEY_OP_SIGN:
465 rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
468 case EVP_PKEY_OP_ENCRYPT:
469 rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
472 case EVP_PKEY_OP_DECRYPT:
473 rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
476 case EVP_PKEY_OP_DERIVE:
477 rv = EVP_PKEY_derive(ctx, out, poutlen);