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>
70 static EVP_PKEY_CTX *init_ctx(const char *kdfalg, int *pkeysize,
71 const char *keyfile, int keyform, int key_type,
72 char *passinarg, int pkey_op, ENGINE *e,
75 static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file,
78 static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
79 unsigned char *out, size_t *poutlen,
80 unsigned char *in, size_t inlen);
82 typedef enum OPTION_choice {
83 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
84 OPT_ENGINE, OPT_ENGINE_IMPL, OPT_IN, OPT_OUT,
85 OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN,
86 OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
87 OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN,
88 OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT, OPT_KDF, OPT_KDFLEN
91 OPTIONS pkeyutl_options[] = {
92 {"help", OPT_HELP, '-', "Display this summary"},
93 {"in", OPT_IN, '<', "Input file - default stdin"},
94 {"out", OPT_OUT, '>', "Output file - default stdout"},
95 {"pubin", OPT_PUBIN, '-', "Input is a public key"},
96 {"certin", OPT_CERTIN, '-', "Input is a cert with a public key"},
97 {"asn1parse", OPT_ASN1PARSE, '-', "asn1parse the output data"},
98 {"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
99 {"sign", OPT_SIGN, '-', "Sign input data with private key"},
100 {"verify", OPT_VERIFY, '-', "Verify with public key"},
101 {"verifyrecover", OPT_VERIFYRECOVER, '-',
102 "Verify with public key, recover original data"},
103 {"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
104 {"encrypt", OPT_ENCRYPT, '-', "Encrypt input data with public key"},
105 {"decrypt", OPT_DECRYPT, '-', "Decrypt input data with private key"},
106 {"derive", OPT_DERIVE, '-', "Derive shared secret"},
107 {"kdf", OPT_KDF, 's', "Use KDF algorithm"},
108 {"kdflen", OPT_KDFLEN, 'p', "KDF algorithm output length"},
109 {"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"},
110 {"inkey", OPT_INKEY, 's', "Input private key file"},
111 {"peerkey", OPT_PEERKEY, 's', "Peer key file used in key derivation"},
112 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
113 {"peerform", OPT_PEERFORM, 'E', "Peer key format - default PEM"},
114 {"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"},
115 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
116 #ifndef OPENSSL_NO_ENGINE
117 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
118 {"engine_impl", OPT_ENGINE_IMPL, '-',
119 "Also use engine given by -engine for crypto operations"},
124 int pkeyutl_main(int argc, char **argv)
126 BIO *in = NULL, *out = NULL;
128 EVP_PKEY_CTX *ctx = NULL;
129 char *infile = NULL, *outfile = NULL, *sigfile = NULL, *passinarg = NULL;
130 char hexdump = 0, asn1parse = 0, rev = 0, *prog;
131 unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
133 int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform =
135 int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
137 int ret = 1, rv = -1;
139 const char *inkey = NULL;
140 const char *peerkey = NULL;
141 const char *kdfalg = NULL;
143 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
145 prog = opt_init(argc, argv, pkeyutl_options);
146 while ((o = opt_next()) != OPT_EOF) {
151 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
154 opt_help(pkeyutl_options);
166 case OPT_ENGINE_IMPL:
176 passinarg = opt_arg();
179 if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform))
183 if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform))
187 e = setup_engine(opt_arg(), 0);
190 key_type = KEY_PUBKEY;
202 pkey_op = EVP_PKEY_OP_SIGN;
205 pkey_op = EVP_PKEY_OP_VERIFY;
207 case OPT_VERIFYRECOVER:
208 pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
211 pkey_op = EVP_PKEY_OP_ENCRYPT;
214 pkey_op = EVP_PKEY_OP_DECRYPT;
217 pkey_op = EVP_PKEY_OP_DERIVE;
220 pkey_op = EVP_PKEY_OP_DERIVE;
225 kdflen = atoi(opt_arg());
231 if ((pkeyopts == NULL &&
232 (pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) ||
233 sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) {
234 BIO_puts(bio_err, "out of memory\n");
240 argc = opt_num_rest();
244 if (kdfalg != NULL) {
247 } else if ((inkey == NULL)
248 || (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE)) {
251 ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
252 passinarg, pkey_op, e, engine_impl);
254 BIO_printf(bio_err, "%s: Error initializing context\n", prog);
255 ERR_print_errors(bio_err);
258 if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
259 BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
260 ERR_print_errors(bio_err);
263 if (pkeyopts != NULL) {
264 int num = sk_OPENSSL_STRING_num(pkeyopts);
267 for (i = 0; i < num; ++i) {
268 const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
270 if (pkey_ctrl_string(ctx, opt) <= 0) {
271 BIO_printf(bio_err, "%s: Can't set parameter:\n", prog);
272 ERR_print_errors(bio_err);
278 if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
280 "%s: Signature file specified for non verify\n", prog);
284 if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
286 "%s: No signature file specified for verify\n", prog);
290 /* FIXME: seed PRNG only if needed */
291 app_RAND_load_file(NULL, 0);
293 if (pkey_op != EVP_PKEY_OP_DERIVE) {
294 in = bio_open_default(infile, 'r', FORMAT_BINARY);
298 out = bio_open_default(outfile, 'w', FORMAT_BINARY);
303 BIO *sigbio = BIO_new_file(sigfile, "rb");
305 BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
308 siglen = bio_to_mem(&sig, keysize * 10, sigbio);
311 BIO_printf(bio_err, "Error reading signature data\n");
317 /* Read the input data */
318 buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
320 BIO_printf(bio_err, "Error reading input Data\n");
326 size_t l = (size_t)buf_inlen;
327 for (i = 0; i < l / 2; i++) {
329 buf_in[i] = buf_in[l - 1 - i];
330 buf_in[l - 1 - i] = ctmp;
335 if (pkey_op == EVP_PKEY_OP_VERIFY) {
336 rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
337 buf_in, (size_t)buf_inlen);
339 BIO_puts(out, "Signature Verified Successfully\n");
342 BIO_puts(out, "Signature Verification Failure\n");
349 rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
350 buf_in, (size_t)buf_inlen);
352 if (rv > 0 && buf_outlen != 0) {
353 buf_out = app_malloc(buf_outlen, "buffer output");
354 rv = do_keyop(ctx, pkey_op,
355 buf_out, (size_t *)&buf_outlen,
356 buf_in, (size_t)buf_inlen);
359 BIO_puts(bio_err, "Public Key operation error\n");
360 ERR_print_errors(bio_err);
366 if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
367 ERR_print_errors(bio_err);
369 BIO_dump(out, (char *)buf_out, buf_outlen);
371 BIO_write(out, buf_out, buf_outlen);
374 EVP_PKEY_CTX_free(ctx);
377 OPENSSL_free(buf_in);
378 OPENSSL_free(buf_out);
380 sk_OPENSSL_STRING_free(pkeyopts);
384 static EVP_PKEY_CTX *init_ctx(const char *kdfalg, int *pkeysize,
385 const char *keyfile, int keyform, int key_type,
386 char *passinarg, int pkey_op, ENGINE *e,
387 const int engine_impl)
389 EVP_PKEY *pkey = NULL;
390 EVP_PKEY_CTX *ctx = NULL;
395 if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
396 || (pkey_op == EVP_PKEY_OP_DERIVE))
397 && (key_type != KEY_PRIVKEY && kdfalg == NULL)) {
398 BIO_printf(bio_err, "A private key is needed for this operation\n");
401 if (!app_passwd(passinarg, NULL, &passin, NULL)) {
402 BIO_printf(bio_err, "Error getting password\n");
407 pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
411 pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "Public Key");
415 x = load_cert(keyfile, keyform, "Certificate");
417 pkey = X509_get_pubkey(x);
427 #ifndef OPENSSL_NO_ENGINE
433 int kdfnid = OBJ_sn2nid(kdfalg);
434 if (kdfnid == NID_undef)
436 ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
440 *pkeysize = EVP_PKEY_size(pkey);
441 ctx = EVP_PKEY_CTX_new(pkey, impl);
449 case EVP_PKEY_OP_SIGN:
450 rv = EVP_PKEY_sign_init(ctx);
453 case EVP_PKEY_OP_VERIFY:
454 rv = EVP_PKEY_verify_init(ctx);
457 case EVP_PKEY_OP_VERIFYRECOVER:
458 rv = EVP_PKEY_verify_recover_init(ctx);
461 case EVP_PKEY_OP_ENCRYPT:
462 rv = EVP_PKEY_encrypt_init(ctx);
465 case EVP_PKEY_OP_DECRYPT:
466 rv = EVP_PKEY_decrypt_init(ctx);
469 case EVP_PKEY_OP_DERIVE:
470 rv = EVP_PKEY_derive_init(ctx);
475 EVP_PKEY_CTX_free(ctx);
480 OPENSSL_free(passin);
485 static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file,
488 EVP_PKEY *peer = NULL;
489 ENGINE* engine = NULL;
492 if (peerform == FORMAT_ENGINE)
494 peer = load_pubkey(file, peerform, 0, NULL, engine, "Peer Key");
496 BIO_printf(bio_err, "Error reading peer key %s\n", file);
497 ERR_print_errors(bio_err);
501 ret = EVP_PKEY_derive_set_peer(ctx, peer);
505 ERR_print_errors(bio_err);
509 static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
510 unsigned char *out, size_t *poutlen,
511 unsigned char *in, size_t inlen)
515 case EVP_PKEY_OP_VERIFYRECOVER:
516 rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
519 case EVP_PKEY_OP_SIGN:
520 rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
523 case EVP_PKEY_OP_ENCRYPT:
524 rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
527 case EVP_PKEY_OP_DECRYPT:
528 rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
531 case EVP_PKEY_OP_DERIVE:
532 rv = EVP_PKEY_derive(ctx, out, poutlen);