Import LibreSSL v2.4.2 to vendor branch
[dragonfly.git] / crypto / libressl / apps / openssl / pkeyutl.c
blobf36e60780f7b27c1954c954ae2ffca2f329bb690
1 /* $OpenBSD: pkeyutl.c,v 1.9 2015/10/17 07:51:10 semarie Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2006.
4 */
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
10 * are met:
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
18 * distribution.
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
35 * acknowledgment:
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).
59 #include <string.h>
61 #include "apps.h"
63 #include <openssl/err.h>
64 #include <openssl/evp.h>
65 #include <openssl/pem.h>
67 #define KEY_PRIVKEY 1
68 #define KEY_PUBKEY 2
69 #define KEY_CERT 3
71 static void usage(void);
73 static EVP_PKEY_CTX *init_ctx(int *pkeysize,
74 char *keyfile, int keyform, int key_type,
75 char *passargin, int pkey_op);
77 static int setup_peer(BIO * err, EVP_PKEY_CTX * ctx, int peerform,
78 const char *file);
80 static int do_keyop(EVP_PKEY_CTX * ctx, int pkey_op,
81 unsigned char *out, size_t * poutlen,
82 unsigned char *in, size_t inlen);
84 int
85 pkeyutl_main(int argc, char **argv)
87 BIO *in = NULL, *out = NULL;
88 char *infile = NULL, *outfile = NULL, *sigfile = NULL;
89 int pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
90 int keyform = FORMAT_PEM, peerform = FORMAT_PEM;
91 char badarg = 0, rev = 0;
92 char hexdump = 0, asn1parse = 0;
93 EVP_PKEY_CTX *ctx = NULL;
94 char *passargin = NULL;
95 int keysize = -1;
97 unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
98 size_t buf_outlen;
99 int buf_inlen = 0, siglen = -1;
101 int ret = 1, rv = -1;
103 if (single_execution) {
104 if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
105 perror("pledge");
106 exit(1);
110 argc--;
111 argv++;
113 while (argc >= 1) {
114 if (!strcmp(*argv, "-in")) {
115 if (--argc < 1)
116 badarg = 1;
117 else
118 infile = *(++argv);
119 } else if (!strcmp(*argv, "-out")) {
120 if (--argc < 1)
121 badarg = 1;
122 else
123 outfile = *(++argv);
124 } else if (!strcmp(*argv, "-sigfile")) {
125 if (--argc < 1)
126 badarg = 1;
127 else
128 sigfile = *(++argv);
129 } else if (!strcmp(*argv, "-inkey")) {
130 if (--argc < 1)
131 badarg = 1;
132 else {
133 ctx = init_ctx(&keysize,
134 *(++argv), keyform, key_type,
135 passargin, pkey_op);
136 if (!ctx) {
137 BIO_puts(bio_err,
138 "Error initializing context\n");
139 ERR_print_errors(bio_err);
140 badarg = 1;
143 } else if (!strcmp(*argv, "-peerkey")) {
144 if (--argc < 1)
145 badarg = 1;
146 else if (!setup_peer(bio_err, ctx, peerform, *(++argv)))
147 badarg = 1;
148 } else if (!strcmp(*argv, "-passin")) {
149 if (--argc < 1)
150 badarg = 1;
151 else
152 passargin = *(++argv);
153 } else if (strcmp(*argv, "-peerform") == 0) {
154 if (--argc < 1)
155 badarg = 1;
156 else
157 peerform = str2fmt(*(++argv));
158 } else if (strcmp(*argv, "-keyform") == 0) {
159 if (--argc < 1)
160 badarg = 1;
161 else
162 keyform = str2fmt(*(++argv));
164 else if (!strcmp(*argv, "-pubin"))
165 key_type = KEY_PUBKEY;
166 else if (!strcmp(*argv, "-certin"))
167 key_type = KEY_CERT;
168 else if (!strcmp(*argv, "-asn1parse"))
169 asn1parse = 1;
170 else if (!strcmp(*argv, "-hexdump"))
171 hexdump = 1;
172 else if (!strcmp(*argv, "-sign"))
173 pkey_op = EVP_PKEY_OP_SIGN;
174 else if (!strcmp(*argv, "-verify"))
175 pkey_op = EVP_PKEY_OP_VERIFY;
176 else if (!strcmp(*argv, "-verifyrecover"))
177 pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
178 else if (!strcmp(*argv, "-rev"))
179 rev = 1;
180 else if (!strcmp(*argv, "-encrypt"))
181 pkey_op = EVP_PKEY_OP_ENCRYPT;
182 else if (!strcmp(*argv, "-decrypt"))
183 pkey_op = EVP_PKEY_OP_DECRYPT;
184 else if (!strcmp(*argv, "-derive"))
185 pkey_op = EVP_PKEY_OP_DERIVE;
186 else if (strcmp(*argv, "-pkeyopt") == 0) {
187 if (--argc < 1)
188 badarg = 1;
189 else if (!ctx) {
190 BIO_puts(bio_err,
191 "-pkeyopt command before -inkey\n");
192 badarg = 1;
193 } else if (pkey_ctrl_string(ctx, *(++argv)) <= 0) {
194 BIO_puts(bio_err, "parameter setting error\n");
195 ERR_print_errors(bio_err);
196 goto end;
198 } else
199 badarg = 1;
200 if (badarg) {
201 usage();
202 goto end;
204 argc--;
205 argv++;
208 if (!ctx) {
209 usage();
210 goto end;
212 if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
213 BIO_puts(bio_err, "Signature file specified for non verify\n");
214 goto end;
216 if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
217 BIO_puts(bio_err, "No signature file specified for verify\n");
218 goto end;
221 if (pkey_op != EVP_PKEY_OP_DERIVE) {
222 if (infile) {
223 if (!(in = BIO_new_file(infile, "rb"))) {
224 BIO_puts(bio_err,
225 "Error Opening Input File\n");
226 ERR_print_errors(bio_err);
227 goto end;
229 } else
230 in = BIO_new_fp(stdin, BIO_NOCLOSE);
232 if (outfile) {
233 if (!(out = BIO_new_file(outfile, "wb"))) {
234 BIO_printf(bio_err, "Error Creating Output File\n");
235 ERR_print_errors(bio_err);
236 goto end;
238 } else {
239 out = BIO_new_fp(stdout, BIO_NOCLOSE);
242 if (sigfile) {
243 BIO *sigbio = BIO_new_file(sigfile, "rb");
244 if (!sigbio) {
245 BIO_printf(bio_err, "Can't open signature file %s\n",
246 sigfile);
247 goto end;
249 siglen = bio_to_mem(&sig, keysize * 10, sigbio);
250 BIO_free(sigbio);
251 if (siglen <= 0) {
252 BIO_printf(bio_err, "Error reading signature data\n");
253 goto end;
256 if (in) {
257 /* Read the input data */
258 buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
259 if (buf_inlen <= 0) {
260 BIO_printf(bio_err, "Error reading input Data\n");
261 exit(1);
263 if (rev) {
264 size_t i;
265 unsigned char ctmp;
266 size_t l = (size_t) buf_inlen;
267 for (i = 0; i < l / 2; i++) {
268 ctmp = buf_in[i];
269 buf_in[i] = buf_in[l - 1 - i];
270 buf_in[l - 1 - i] = ctmp;
274 if (pkey_op == EVP_PKEY_OP_VERIFY) {
275 rv = EVP_PKEY_verify(ctx, sig, (size_t) siglen,
276 buf_in, (size_t) buf_inlen);
277 if (rv == 1) {
278 BIO_puts(out, "Signature Verified Successfully\n");
279 ret = 0;
280 } else
281 BIO_puts(out, "Signature Verification Failure\n");
282 if (rv >= 0)
283 goto end;
284 } else {
285 rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
286 buf_in, (size_t) buf_inlen);
287 if (rv > 0) {
288 buf_out = malloc(buf_outlen);
289 if (!buf_out)
290 rv = -1;
291 else
292 rv = do_keyop(ctx, pkey_op,
293 buf_out, (size_t *) & buf_outlen,
294 buf_in, (size_t) buf_inlen);
298 if (rv <= 0) {
299 BIO_printf(bio_err, "Public Key operation error\n");
300 ERR_print_errors(bio_err);
301 goto end;
303 ret = 0;
304 if (asn1parse) {
305 if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
306 ERR_print_errors(bio_err);
307 } else if (hexdump)
308 BIO_dump(out, (char *) buf_out, buf_outlen);
309 else
310 BIO_write(out, buf_out, buf_outlen);
312 end:
313 if (ctx)
314 EVP_PKEY_CTX_free(ctx);
315 BIO_free(in);
316 BIO_free_all(out);
317 free(buf_in);
318 free(buf_out);
319 free(sig);
321 return ret;
324 static void
325 usage()
327 BIO_printf(bio_err, "Usage: pkeyutl [options]\n");
328 BIO_printf(bio_err, "-in file input file\n");
329 BIO_printf(bio_err, "-out file output file\n");
330 BIO_printf(bio_err, "-sigfile file signature file (verify operation only)\n");
331 BIO_printf(bio_err, "-inkey file input key\n");
332 BIO_printf(bio_err, "-keyform arg private key format - default PEM\n");
333 BIO_printf(bio_err, "-pubin input is a public key\n");
334 BIO_printf(bio_err, "-certin input is a certificate carrying a public key\n");
335 BIO_printf(bio_err, "-pkeyopt X:Y public key options\n");
336 BIO_printf(bio_err, "-sign sign with private key\n");
337 BIO_printf(bio_err, "-verify verify with public key\n");
338 BIO_printf(bio_err, "-verifyrecover verify with public key, recover original data\n");
339 BIO_printf(bio_err, "-encrypt encrypt with public key\n");
340 BIO_printf(bio_err, "-decrypt decrypt with private key\n");
341 BIO_printf(bio_err, "-derive derive shared secret\n");
342 BIO_printf(bio_err, "-hexdump hex dump output\n");
343 BIO_printf(bio_err, "-passin arg pass phrase source\n");
347 static EVP_PKEY_CTX *
348 init_ctx(int *pkeysize,
349 char *keyfile, int keyform, int key_type,
350 char *passargin, int pkey_op)
352 EVP_PKEY *pkey = NULL;
353 EVP_PKEY_CTX *ctx = NULL;
354 char *passin = NULL;
355 int rv = -1;
356 X509 *x;
357 if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
358 || (pkey_op == EVP_PKEY_OP_DERIVE))
359 && (key_type != KEY_PRIVKEY)) {
360 BIO_printf(bio_err, "A private key is needed for this operation\n");
361 goto end;
363 if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
364 BIO_printf(bio_err, "Error getting password\n");
365 goto end;
367 switch (key_type) {
368 case KEY_PRIVKEY:
369 pkey = load_key(bio_err, keyfile, keyform, 0,
370 passin, "Private Key");
371 break;
373 case KEY_PUBKEY:
374 pkey = load_pubkey(bio_err, keyfile, keyform, 0,
375 NULL, "Public Key");
376 break;
378 case KEY_CERT:
379 x = load_cert(bio_err, keyfile, keyform,
380 NULL, "Certificate");
381 if (x) {
382 pkey = X509_get_pubkey(x);
383 X509_free(x);
385 break;
389 *pkeysize = EVP_PKEY_size(pkey);
391 if (!pkey)
392 goto end;
394 ctx = EVP_PKEY_CTX_new(pkey, NULL);
396 EVP_PKEY_free(pkey);
398 if (!ctx)
399 goto end;
401 switch (pkey_op) {
402 case EVP_PKEY_OP_SIGN:
403 rv = EVP_PKEY_sign_init(ctx);
404 break;
406 case EVP_PKEY_OP_VERIFY:
407 rv = EVP_PKEY_verify_init(ctx);
408 break;
410 case EVP_PKEY_OP_VERIFYRECOVER:
411 rv = EVP_PKEY_verify_recover_init(ctx);
412 break;
414 case EVP_PKEY_OP_ENCRYPT:
415 rv = EVP_PKEY_encrypt_init(ctx);
416 break;
418 case EVP_PKEY_OP_DECRYPT:
419 rv = EVP_PKEY_decrypt_init(ctx);
420 break;
422 case EVP_PKEY_OP_DERIVE:
423 rv = EVP_PKEY_derive_init(ctx);
424 break;
427 if (rv <= 0) {
428 EVP_PKEY_CTX_free(ctx);
429 ctx = NULL;
431 end:
433 free(passin);
435 return ctx;
440 static int
441 setup_peer(BIO * err, EVP_PKEY_CTX * ctx, int peerform,
442 const char *file)
444 EVP_PKEY *peer = NULL;
445 int ret;
446 if (!ctx) {
447 BIO_puts(err, "-peerkey command before -inkey\n");
448 return 0;
450 peer = load_pubkey(bio_err, file, peerform, 0, NULL, "Peer Key");
452 if (!peer) {
453 BIO_printf(bio_err, "Error reading peer key %s\n", file);
454 ERR_print_errors(err);
455 return 0;
457 ret = EVP_PKEY_derive_set_peer(ctx, peer);
459 EVP_PKEY_free(peer);
460 if (ret <= 0)
461 ERR_print_errors(err);
462 return ret;
465 static int
466 do_keyop(EVP_PKEY_CTX * ctx, int pkey_op,
467 unsigned char *out, size_t * poutlen,
468 unsigned char *in, size_t inlen)
470 int rv = 0;
471 switch (pkey_op) {
472 case EVP_PKEY_OP_VERIFYRECOVER:
473 rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
474 break;
476 case EVP_PKEY_OP_SIGN:
477 rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
478 break;
480 case EVP_PKEY_OP_ENCRYPT:
481 rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
482 break;
484 case EVP_PKEY_OP_DECRYPT:
485 rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
486 break;
488 case EVP_PKEY_OP_DERIVE:
489 rv = EVP_PKEY_derive(ctx, out, poutlen);
490 break;
493 return rv;