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source: vbox/trunk/src/libs/openssl-3.1.3/apps/pkeyutl.c@ 102797

Last change on this file since 102797 was 101211, checked in by vboxsync, 15 months ago

openssl-3.1.3: Applied and adjusted our OpenSSL changes to 3.1.2. bugref:10527
File size: 24.9 KB
Line 
1/*
2 * Copyright 2006-2023 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include "apps.h"
11#include "progs.h"
12#include <string.h>
13#include <openssl/err.h>
14#include <openssl/pem.h>
15#include <openssl/evp.h>
16#include <sys/stat.h>
17
18#define KEY_NONE 0
19#define KEY_PRIVKEY 1
20#define KEY_PUBKEY 2
21#define KEY_CERT 3
22
23static EVP_PKEY_CTX *init_ctx(const char *kdfalg, int *pkeysize,
24 const char *keyfile, int keyform, int key_type,
25 char *passinarg, int pkey_op, ENGINE *e,
26 const int impl, int rawin, EVP_PKEY **ppkey,
27 EVP_MD_CTX *mctx, const char *digestname,
28 OSSL_LIB_CTX *libctx, const char *propq);
29
30static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file,
31 ENGINE *e);
32
33static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
34 unsigned char *out, size_t *poutlen,
35 const unsigned char *in, size_t inlen);
36
37static int do_raw_keyop(int pkey_op, EVP_MD_CTX *mctx,
38 EVP_PKEY *pkey, BIO *in,
39 int filesize, unsigned char *sig, int siglen,
40 unsigned char **out, size_t *poutlen);
41
42typedef enum OPTION_choice {
43 OPT_COMMON,
44 OPT_ENGINE, OPT_ENGINE_IMPL, OPT_IN, OPT_OUT,
45 OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN,
46 OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
47 OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN,
48 OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT, OPT_PKEYOPT_PASSIN, OPT_KDF,
49 OPT_KDFLEN, OPT_R_ENUM, OPT_PROV_ENUM,
50 OPT_CONFIG,
51 OPT_RAWIN, OPT_DIGEST
52} OPTION_CHOICE;
53
54const OPTIONS pkeyutl_options[] = {
55 OPT_SECTION("General"),
56 {"help", OPT_HELP, '-', "Display this summary"},
57#ifndef OPENSSL_NO_ENGINE
58 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
59 {"engine_impl", OPT_ENGINE_IMPL, '-',
60 "Also use engine given by -engine for crypto operations"},
61#endif
62 {"sign", OPT_SIGN, '-', "Sign input data with private key"},
63 {"verify", OPT_VERIFY, '-', "Verify with public key"},
64 {"encrypt", OPT_ENCRYPT, '-', "Encrypt input data with public key"},
65 {"decrypt", OPT_DECRYPT, '-', "Decrypt input data with private key"},
66 {"derive", OPT_DERIVE, '-', "Derive shared secret"},
67 OPT_CONFIG_OPTION,
68
69 OPT_SECTION("Input"),
70 {"in", OPT_IN, '<', "Input file - default stdin"},
71 {"rawin", OPT_RAWIN, '-', "Indicate the input data is in raw form"},
72 {"pubin", OPT_PUBIN, '-', "Input is a public key"},
73 {"inkey", OPT_INKEY, 's', "Input private key file"},
74 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
75 {"peerkey", OPT_PEERKEY, 's', "Peer key file used in key derivation"},
76 {"peerform", OPT_PEERFORM, 'E', "Peer key format (DER/PEM/P12/ENGINE)"},
77 {"certin", OPT_CERTIN, '-', "Input is a cert with a public key"},
78 {"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
79 {"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"},
80 {"keyform", OPT_KEYFORM, 'E', "Private key format (ENGINE, other values ignored)"},
81
82 OPT_SECTION("Output"),
83 {"out", OPT_OUT, '>', "Output file - default stdout"},
84 {"asn1parse", OPT_ASN1PARSE, '-', "asn1parse the output data"},
85 {"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
86 {"verifyrecover", OPT_VERIFYRECOVER, '-',
87 "Verify with public key, recover original data"},
88
89 OPT_SECTION("Signing/Derivation"),
90 {"digest", OPT_DIGEST, 's',
91 "Specify the digest algorithm when signing the raw input data"},
92 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
93 {"pkeyopt_passin", OPT_PKEYOPT_PASSIN, 's',
94 "Public key option that is read as a passphrase argument opt:passphrase"},
95 {"kdf", OPT_KDF, 's', "Use KDF algorithm"},
96 {"kdflen", OPT_KDFLEN, 'p', "KDF algorithm output length"},
97
98 OPT_R_OPTIONS,
99 OPT_PROV_OPTIONS,
100 {NULL}
101};
102
103int pkeyutl_main(int argc, char **argv)
104{
105 CONF *conf = NULL;
106 BIO *in = NULL, *out = NULL;
107 ENGINE *e = NULL;
108 EVP_PKEY_CTX *ctx = NULL;
109 EVP_PKEY *pkey = NULL;
110 char *infile = NULL, *outfile = NULL, *sigfile = NULL, *passinarg = NULL;
111 char hexdump = 0, asn1parse = 0, rev = 0, *prog;
112 unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
113 OPTION_CHOICE o;
114 int buf_inlen = 0, siglen = -1;
115 int keyform = FORMAT_UNDEF, peerform = FORMAT_UNDEF;
116 int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
117 int engine_impl = 0;
118 int ret = 1, rv = -1;
119 size_t buf_outlen;
120 const char *inkey = NULL;
121 const char *peerkey = NULL;
122 const char *kdfalg = NULL, *digestname = NULL;
123 int kdflen = 0;
124 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
125 STACK_OF(OPENSSL_STRING) *pkeyopts_passin = NULL;
126 int rawin = 0;
127 EVP_MD_CTX *mctx = NULL;
128 EVP_MD *md = NULL;
129 int filesize = -1;
130 OSSL_LIB_CTX *libctx = app_get0_libctx();
131
132 prog = opt_init(argc, argv, pkeyutl_options);
133 while ((o = opt_next()) != OPT_EOF) {
134 switch (o) {
135 case OPT_EOF:
136 case OPT_ERR:
137 opthelp:
138 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
139 goto end;
140 case OPT_HELP:
141 opt_help(pkeyutl_options);
142 ret = 0;
143 goto end;
144 case OPT_IN:
145 infile = opt_arg();
146 break;
147 case OPT_OUT:
148 outfile = opt_arg();
149 break;
150 case OPT_SIGFILE:
151 sigfile = opt_arg();
152 break;
153 case OPT_ENGINE_IMPL:
154 engine_impl = 1;
155 break;
156 case OPT_INKEY:
157 inkey = opt_arg();
158 break;
159 case OPT_PEERKEY:
160 peerkey = opt_arg();
161 break;
162 case OPT_PASSIN:
163 passinarg = opt_arg();
164 break;
165 case OPT_PEERFORM:
166 if (!opt_format(opt_arg(), OPT_FMT_ANY, &peerform))
167 goto opthelp;
168 break;
169 case OPT_KEYFORM:
170 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
171 goto opthelp;
172 break;
173 case OPT_R_CASES:
174 if (!opt_rand(o))
175 goto end;
176 break;
177 case OPT_CONFIG:
178 conf = app_load_config_modules(opt_arg());
179 if (conf == NULL)
180 goto end;
181 break;
182 case OPT_PROV_CASES:
183 if (!opt_provider(o))
184 goto end;
185 break;
186 case OPT_ENGINE:
187 e = setup_engine(opt_arg(), 0);
188 break;
189 case OPT_PUBIN:
190 key_type = KEY_PUBKEY;
191 break;
192 case OPT_CERTIN:
193 key_type = KEY_CERT;
194 break;
195 case OPT_ASN1PARSE:
196 asn1parse = 1;
197 break;
198 case OPT_HEXDUMP:
199 hexdump = 1;
200 break;
201 case OPT_SIGN:
202 pkey_op = EVP_PKEY_OP_SIGN;
203 break;
204 case OPT_VERIFY:
205 pkey_op = EVP_PKEY_OP_VERIFY;
206 break;
207 case OPT_VERIFYRECOVER:
208 pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
209 break;
210 case OPT_ENCRYPT:
211 pkey_op = EVP_PKEY_OP_ENCRYPT;
212 break;
213 case OPT_DECRYPT:
214 pkey_op = EVP_PKEY_OP_DECRYPT;
215 break;
216 case OPT_DERIVE:
217 pkey_op = EVP_PKEY_OP_DERIVE;
218 break;
219 case OPT_KDF:
220 pkey_op = EVP_PKEY_OP_DERIVE;
221 key_type = KEY_NONE;
222 kdfalg = opt_arg();
223 break;
224 case OPT_KDFLEN:
225 kdflen = atoi(opt_arg());
226 break;
227 case OPT_REV:
228 rev = 1;
229 break;
230 case OPT_PKEYOPT:
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");
235 goto end;
236 }
237 break;
238 case OPT_PKEYOPT_PASSIN:
239 if ((pkeyopts_passin == NULL &&
240 (pkeyopts_passin = sk_OPENSSL_STRING_new_null()) == NULL) ||
241 sk_OPENSSL_STRING_push(pkeyopts_passin, opt_arg()) == 0) {
242 BIO_puts(bio_err, "out of memory\n");
243 goto end;
244 }
245 break;
246 case OPT_RAWIN:
247 rawin = 1;
248 break;
249 case OPT_DIGEST:
250 digestname = opt_arg();
251 break;
252 }
253 }
254
255 /* No extra arguments. */
256 argc = opt_num_rest();
257 if (argc != 0)
258 goto opthelp;
259
260 if (!app_RAND_load())
261 goto end;
262
263 if (rawin && pkey_op != EVP_PKEY_OP_SIGN && pkey_op != EVP_PKEY_OP_VERIFY) {
264 BIO_printf(bio_err,
265 "%s: -rawin can only be used with -sign or -verify\n",
266 prog);
267 goto opthelp;
268 }
269
270 if (digestname != NULL && !rawin) {
271 BIO_printf(bio_err,
272 "%s: -digest can only be used with -rawin\n",
273 prog);
274 goto opthelp;
275 }
276
277 if (rawin && rev) {
278 BIO_printf(bio_err, "%s: -rev cannot be used with raw input\n",
279 prog);
280 goto opthelp;
281 }
282
283 if (kdfalg != NULL) {
284 if (kdflen == 0) {
285 BIO_printf(bio_err,
286 "%s: no KDF length given (-kdflen parameter).\n", prog);
287 goto opthelp;
288 }
289 } else if (inkey == NULL) {
290 BIO_printf(bio_err,
291 "%s: no private key given (-inkey parameter).\n", prog);
292 goto opthelp;
293 } else if (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE) {
294 BIO_printf(bio_err,
295 "%s: no peer key given (-peerkey parameter).\n", prog);
296 goto opthelp;
297 }
298
299 if (rawin) {
300 if ((mctx = EVP_MD_CTX_new()) == NULL) {
301 BIO_printf(bio_err, "Error: out of memory\n");
302 goto end;
303 }
304 }
305 ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
306 passinarg, pkey_op, e, engine_impl, rawin, &pkey,
307 mctx, digestname, libctx, app_get0_propq());
308 if (ctx == NULL) {
309 BIO_printf(bio_err, "%s: Error initializing context\n", prog);
310 goto end;
311 }
312 if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
313 BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
314 goto end;
315 }
316 if (pkeyopts != NULL) {
317 int num = sk_OPENSSL_STRING_num(pkeyopts);
318 int i;
319
320 for (i = 0; i < num; ++i) {
321 const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
322
323 if (pkey_ctrl_string(ctx, opt) <= 0) {
324 BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
325 prog, opt);
326 goto end;
327 }
328 }
329 }
330 if (pkeyopts_passin != NULL) {
331 int num = sk_OPENSSL_STRING_num(pkeyopts_passin);
332 int i;
333
334 for (i = 0; i < num; i++) {
335 char *opt = sk_OPENSSL_STRING_value(pkeyopts_passin, i);
336 char *passin = strchr(opt, ':');
337 char *passwd;
338
339 if (passin == NULL) {
340 /* Get password interactively */
341 char passwd_buf[4096];
342 int r;
343
344 BIO_snprintf(passwd_buf, sizeof(passwd_buf), "Enter %s: ", opt);
345 r = EVP_read_pw_string(passwd_buf, sizeof(passwd_buf) - 1,
346 passwd_buf, 0);
347 if (r < 0) {
348 if (r == -2)
349 BIO_puts(bio_err, "user abort\n");
350 else
351 BIO_puts(bio_err, "entry failed\n");
352 goto end;
353 }
354 passwd = OPENSSL_strdup(passwd_buf);
355 if (passwd == NULL) {
356 BIO_puts(bio_err, "out of memory\n");
357 goto end;
358 }
359 } else {
360 /* Get password as a passin argument: First split option name
361 * and passphrase argument into two strings */
362 *passin = 0;
363 passin++;
364 if (app_passwd(passin, NULL, &passwd, NULL) == 0) {
365 BIO_printf(bio_err, "failed to get '%s'\n", opt);
366 goto end;
367 }
368 }
369
370 if (EVP_PKEY_CTX_ctrl_str(ctx, opt, passwd) <= 0) {
371 BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
372 prog, opt);
373 goto end;
374 }
375 OPENSSL_free(passwd);
376 }
377 }
378
379 if (sigfile != NULL && (pkey_op != EVP_PKEY_OP_VERIFY)) {
380 BIO_printf(bio_err,
381 "%s: Signature file specified for non verify\n", prog);
382 goto end;
383 }
384
385 if (sigfile == NULL && (pkey_op == EVP_PKEY_OP_VERIFY)) {
386 BIO_printf(bio_err,
387 "%s: No signature file specified for verify\n", prog);
388 goto end;
389 }
390
391 if (pkey_op != EVP_PKEY_OP_DERIVE) {
392 in = bio_open_default(infile, 'r', FORMAT_BINARY);
393 if (infile != NULL) {
394 struct stat st;
395
396 if (stat(infile, &st) == 0 && st.st_size <= INT_MAX)
397 filesize = (int)st.st_size;
398 }
399 if (in == NULL)
400 goto end;
401 }
402 out = bio_open_default(outfile, 'w', FORMAT_BINARY);
403 if (out == NULL)
404 goto end;
405
406 if (sigfile != NULL) {
407 BIO *sigbio = BIO_new_file(sigfile, "rb");
408
409 if (sigbio == NULL) {
410 BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
411 goto end;
412 }
413 siglen = bio_to_mem(&sig, keysize * 10, sigbio);
414 BIO_free(sigbio);
415 if (siglen < 0) {
416 BIO_printf(bio_err, "Error reading signature data\n");
417 goto end;
418 }
419 }
420
421 /* Raw input data is handled elsewhere */
422 if (in != NULL && !rawin) {
423 /* Read the input data */
424 buf_inlen = bio_to_mem(&buf_in, -1, in);
425 if (buf_inlen < 0) {
426 BIO_printf(bio_err, "Error reading input Data\n");
427 goto end;
428 }
429 if (rev) {
430 size_t i;
431 unsigned char ctmp;
432 size_t l = (size_t)buf_inlen;
433 for (i = 0; i < l / 2; i++) {
434 ctmp = buf_in[i];
435 buf_in[i] = buf_in[l - 1 - i];
436 buf_in[l - 1 - i] = ctmp;
437 }
438 }
439 }
440
441 /* Sanity check the input if the input is not raw */
442 if (!rawin
443 && buf_inlen > EVP_MAX_MD_SIZE
444 && (pkey_op == EVP_PKEY_OP_SIGN
445 || pkey_op == EVP_PKEY_OP_VERIFY)) {
446 BIO_printf(bio_err,
447 "Error: The input data looks too long to be a hash\n");
448 goto end;
449 }
450
451 if (pkey_op == EVP_PKEY_OP_VERIFY) {
452 if (rawin) {
453 rv = do_raw_keyop(pkey_op, mctx, pkey, in, filesize, sig, siglen,
454 NULL, 0);
455 } else {
456 rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
457 buf_in, (size_t)buf_inlen);
458 }
459 if (rv == 1) {
460 BIO_puts(out, "Signature Verified Successfully\n");
461 ret = 0;
462 } else {
463 BIO_puts(out, "Signature Verification Failure\n");
464 }
465 goto end;
466 }
467 if (rawin) {
468 /* rawin allocates the buffer in do_raw_keyop() */
469 rv = do_raw_keyop(pkey_op, mctx, pkey, in, filesize, NULL, 0,
470 &buf_out, (size_t *)&buf_outlen);
471 } else {
472 if (kdflen != 0) {
473 buf_outlen = kdflen;
474 rv = 1;
475 } else {
476 rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
477 buf_in, (size_t)buf_inlen);
478 }
479 if (rv > 0 && buf_outlen != 0) {
480 buf_out = app_malloc(buf_outlen, "buffer output");
481 rv = do_keyop(ctx, pkey_op,
482 buf_out, (size_t *)&buf_outlen,
483 buf_in, (size_t)buf_inlen);
484 }
485 }
486 if (rv <= 0) {
487 if (pkey_op != EVP_PKEY_OP_DERIVE) {
488 BIO_puts(bio_err, "Public Key operation error\n");
489 } else {
490 BIO_puts(bio_err, "Key derivation failed\n");
491 }
492 goto end;
493 }
494 ret = 0;
495
496 if (asn1parse) {
497 if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
498 ERR_print_errors(bio_err); /* but still return success */
499 } else if (hexdump) {
500 BIO_dump(out, (char *)buf_out, buf_outlen);
501 } else {
502 BIO_write(out, buf_out, buf_outlen);
503 }
504
505 end:
506 if (ret != 0)
507 ERR_print_errors(bio_err);
508 EVP_MD_CTX_free(mctx);
509 EVP_PKEY_CTX_free(ctx);
510 EVP_MD_free(md);
511 release_engine(e);
512 BIO_free(in);
513 BIO_free_all(out);
514 OPENSSL_free(buf_in);
515 OPENSSL_free(buf_out);
516 OPENSSL_free(sig);
517 sk_OPENSSL_STRING_free(pkeyopts);
518 sk_OPENSSL_STRING_free(pkeyopts_passin);
519 NCONF_free(conf);
520 return ret;
521}
522
523static EVP_PKEY_CTX *init_ctx(const char *kdfalg, int *pkeysize,
524 const char *keyfile, int keyform, int key_type,
525 char *passinarg, int pkey_op, ENGINE *e,
526 const int engine_impl, int rawin,
527 EVP_PKEY **ppkey, EVP_MD_CTX *mctx, const char *digestname,
528 OSSL_LIB_CTX *libctx, const char *propq)
529{
530 EVP_PKEY *pkey = NULL;
531 EVP_PKEY_CTX *ctx = NULL;
532 ENGINE *impl = NULL;
533 char *passin = NULL;
534 int rv = -1;
535 X509 *x;
536
537 if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
538 || (pkey_op == EVP_PKEY_OP_DERIVE))
539 && (key_type != KEY_PRIVKEY && kdfalg == NULL)) {
540 BIO_printf(bio_err, "A private key is needed for this operation\n");
541 goto end;
542 }
543 if (!app_passwd(passinarg, NULL, &passin, NULL)) {
544 BIO_printf(bio_err, "Error getting password\n");
545 goto end;
546 }
547 switch (key_type) {
548 case KEY_PRIVKEY:
549 pkey = load_key(keyfile, keyform, 0, passin, e, "private key");
550 break;
551
552 case KEY_PUBKEY:
553 pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "public key");
554 break;
555
556 case KEY_CERT:
557 x = load_cert(keyfile, keyform, "Certificate");
558 if (x) {
559 pkey = X509_get_pubkey(x);
560 X509_free(x);
561 }
562 break;
563
564 case KEY_NONE:
565 break;
566
567 }
568
569#ifndef OPENSSL_NO_ENGINE
570 if (engine_impl)
571 impl = e;
572#endif
573
574 if (kdfalg != NULL) {
575 int kdfnid = OBJ_sn2nid(kdfalg);
576
577 if (kdfnid == NID_undef) {
578 kdfnid = OBJ_ln2nid(kdfalg);
579 if (kdfnid == NID_undef) {
580 BIO_printf(bio_err, "The given KDF \"%s\" is unknown.\n",
581 kdfalg);
582 goto end;
583 }
584 }
585 if (impl != NULL)
586 ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
587 else
588 ctx = EVP_PKEY_CTX_new_from_name(libctx, kdfalg, propq);
589 } else {
590 if (pkey == NULL)
591 goto end;
592
593 *pkeysize = EVP_PKEY_get_size(pkey);
594 if (impl != NULL)
595 ctx = EVP_PKEY_CTX_new(pkey, impl);
596 else
597 ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey, propq);
598 if (ppkey != NULL)
599 *ppkey = pkey;
600 EVP_PKEY_free(pkey);
601 }
602
603 if (ctx == NULL)
604 goto end;
605
606 if (rawin) {
607 EVP_MD_CTX_set_pkey_ctx(mctx, ctx);
608
609 switch (pkey_op) {
610 case EVP_PKEY_OP_SIGN:
611 rv = EVP_DigestSignInit_ex(mctx, NULL, digestname, libctx, propq,
612 pkey, NULL);
613 break;
614
615 case EVP_PKEY_OP_VERIFY:
616 rv = EVP_DigestVerifyInit_ex(mctx, NULL, digestname, libctx, propq,
617 pkey, NULL);
618 break;
619 }
620
621 } else {
622 switch (pkey_op) {
623 case EVP_PKEY_OP_SIGN:
624 rv = EVP_PKEY_sign_init(ctx);
625 break;
626
627 case EVP_PKEY_OP_VERIFY:
628 rv = EVP_PKEY_verify_init(ctx);
629 break;
630
631 case EVP_PKEY_OP_VERIFYRECOVER:
632 rv = EVP_PKEY_verify_recover_init(ctx);
633 break;
634
635 case EVP_PKEY_OP_ENCRYPT:
636 rv = EVP_PKEY_encrypt_init(ctx);
637 break;
638
639 case EVP_PKEY_OP_DECRYPT:
640 rv = EVP_PKEY_decrypt_init(ctx);
641 break;
642
643 case EVP_PKEY_OP_DERIVE:
644 rv = EVP_PKEY_derive_init(ctx);
645 break;
646 }
647 }
648
649 if (rv <= 0) {
650 EVP_PKEY_CTX_free(ctx);
651 ctx = NULL;
652 }
653
654 end:
655 OPENSSL_free(passin);
656 return ctx;
657
658}
659
660static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file,
661 ENGINE *e)
662{
663 EVP_PKEY *peer = NULL;
664 ENGINE *engine = NULL;
665 int ret;
666
667 if (peerform == FORMAT_ENGINE)
668 engine = e;
669 peer = load_pubkey(file, peerform, 0, NULL, engine, "peer key");
670 if (peer == NULL) {
671 BIO_printf(bio_err, "Error reading peer key %s\n", file);
672 return 0;
673 }
674
675 ret = EVP_PKEY_derive_set_peer(ctx, peer) > 0;
676
677 EVP_PKEY_free(peer);
678 return ret;
679}
680
681static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
682 unsigned char *out, size_t *poutlen,
683 const unsigned char *in, size_t inlen)
684{
685 int rv = 0;
686 switch (pkey_op) {
687 case EVP_PKEY_OP_VERIFYRECOVER:
688 rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
689 break;
690
691 case EVP_PKEY_OP_SIGN:
692 rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
693 break;
694
695 case EVP_PKEY_OP_ENCRYPT:
696 rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
697 break;
698
699 case EVP_PKEY_OP_DECRYPT:
700 rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
701 break;
702
703 case EVP_PKEY_OP_DERIVE:
704 rv = EVP_PKEY_derive(ctx, out, poutlen);
705 break;
706
707 }
708 return rv;
709}
710
711#define TBUF_MAXSIZE 2048
712
713static int do_raw_keyop(int pkey_op, EVP_MD_CTX *mctx,
714 EVP_PKEY *pkey, BIO *in,
715 int filesize, unsigned char *sig, int siglen,
716 unsigned char **out, size_t *poutlen)
717{
718 int rv = 0;
719 unsigned char tbuf[TBUF_MAXSIZE];
720 unsigned char *mbuf = NULL;
721 int buf_len = 0;
722
723 /* Some algorithms only support oneshot digests */
724 if (EVP_PKEY_get_id(pkey) == EVP_PKEY_ED25519
725 || EVP_PKEY_get_id(pkey) == EVP_PKEY_ED448) {
726 if (filesize < 0) {
727 BIO_printf(bio_err,
728 "Error: unable to determine file size for oneshot operation\n");
729 goto end;
730 }
731 mbuf = app_malloc(filesize, "oneshot sign/verify buffer");
732 switch(pkey_op) {
733 case EVP_PKEY_OP_VERIFY:
734 buf_len = BIO_read(in, mbuf, filesize);
735 if (buf_len != filesize) {
736 BIO_printf(bio_err, "Error reading raw input data\n");
737 goto end;
738 }
739 rv = EVP_DigestVerify(mctx, sig, (size_t)siglen, mbuf, buf_len);
740 break;
741 case EVP_PKEY_OP_SIGN:
742 buf_len = BIO_read(in, mbuf, filesize);
743 if (buf_len != filesize) {
744 BIO_printf(bio_err, "Error reading raw input data\n");
745 goto end;
746 }
747 rv = EVP_DigestSign(mctx, NULL, poutlen, mbuf, buf_len);
748 if (rv == 1 && out != NULL) {
749 *out = app_malloc(*poutlen, "buffer output");
750 rv = EVP_DigestSign(mctx, *out, poutlen, mbuf, buf_len);
751 }
752 break;
753 }
754 goto end;
755 }
756
757 switch(pkey_op) {
758 case EVP_PKEY_OP_VERIFY:
759 for (;;) {
760 buf_len = BIO_read(in, tbuf, TBUF_MAXSIZE);
761 if (buf_len == 0)
762 break;
763 if (buf_len < 0) {
764 BIO_printf(bio_err, "Error reading raw input data\n");
765 goto end;
766 }
767 rv = EVP_DigestVerifyUpdate(mctx, tbuf, (size_t)buf_len);
768 if (rv != 1) {
769 BIO_printf(bio_err, "Error verifying raw input data\n");
770 goto end;
771 }
772 }
773 rv = EVP_DigestVerifyFinal(mctx, sig, (size_t)siglen);
774 break;
775 case EVP_PKEY_OP_SIGN:
776 for (;;) {
777 buf_len = BIO_read(in, tbuf, TBUF_MAXSIZE);
778 if (buf_len == 0)
779 break;
780 if (buf_len < 0) {
781 BIO_printf(bio_err, "Error reading raw input data\n");
782 goto end;
783 }
784 rv = EVP_DigestSignUpdate(mctx, tbuf, (size_t)buf_len);
785 if (rv != 1) {
786 BIO_printf(bio_err, "Error signing raw input data\n");
787 goto end;
788 }
789 }
790 rv = EVP_DigestSignFinal(mctx, NULL, poutlen);
791 if (rv == 1 && out != NULL) {
792 *out = app_malloc(*poutlen, "buffer output");
793 rv = EVP_DigestSignFinal(mctx, *out, poutlen);
794 }
795 break;
796 }
797
798 end:
799 OPENSSL_free(mbuf);
800 return rv;
801}
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