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
23 static 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
30 static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file,
31 ENGINE *e);
32
33 static 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
37 static 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
42 typedef 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
54 const 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, '-',
85 "parse the output as ASN.1 data to check its DER encoding and print errors"},
86 {"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
87 {"verifyrecover", OPT_VERIFYRECOVER, '-',
88 "Verify RSA signature, recovering original signature input data"},
89
90 OPT_SECTION("Signing/Derivation"),
91 {"digest", OPT_DIGEST, 's',
92 "Specify the digest algorithm when signing the raw input data"},
93 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
94 {"pkeyopt_passin", OPT_PKEYOPT_PASSIN, 's',
95 "Public key option that is read as a passphrase argument opt:passphrase"},
96 {"kdf", OPT_KDF, 's', "Use KDF algorithm"},
97 {"kdflen", OPT_KDFLEN, 'p', "KDF algorithm output length"},
98
99 OPT_R_OPTIONS,
100 OPT_PROV_OPTIONS,
101 {NULL}
102 };
103
pkeyutl_main(int argc,char ** argv)104 int pkeyutl_main(int argc, char **argv)
105 {
106 CONF *conf = NULL;
107 BIO *in = NULL, *out = NULL;
108 ENGINE *e = NULL;
109 EVP_PKEY_CTX *ctx = NULL;
110 EVP_PKEY *pkey = NULL;
111 char *infile = NULL, *outfile = NULL, *sigfile = NULL, *passinarg = NULL;
112 char hexdump = 0, asn1parse = 0, rev = 0, *prog;
113 unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
114 OPTION_CHOICE o;
115 int buf_inlen = 0, siglen = -1;
116 int keyform = FORMAT_UNDEF, peerform = FORMAT_UNDEF;
117 int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
118 int engine_impl = 0;
119 int ret = 1, rv = -1;
120 size_t buf_outlen;
121 const char *inkey = NULL;
122 const char *peerkey = NULL;
123 const char *kdfalg = NULL, *digestname = NULL;
124 int kdflen = 0;
125 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
126 STACK_OF(OPENSSL_STRING) *pkeyopts_passin = NULL;
127 int rawin = 0;
128 EVP_MD_CTX *mctx = NULL;
129 EVP_MD *md = NULL;
130 int filesize = -1;
131 OSSL_LIB_CTX *libctx = app_get0_libctx();
132
133 prog = opt_init(argc, argv, pkeyutl_options);
134 while ((o = opt_next()) != OPT_EOF) {
135 switch (o) {
136 case OPT_EOF:
137 case OPT_ERR:
138 opthelp:
139 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
140 goto end;
141 case OPT_HELP:
142 opt_help(pkeyutl_options);
143 ret = 0;
144 goto end;
145 case OPT_IN:
146 infile = opt_arg();
147 break;
148 case OPT_OUT:
149 outfile = opt_arg();
150 break;
151 case OPT_SIGFILE:
152 sigfile = opt_arg();
153 break;
154 case OPT_ENGINE_IMPL:
155 engine_impl = 1;
156 break;
157 case OPT_INKEY:
158 inkey = opt_arg();
159 break;
160 case OPT_PEERKEY:
161 peerkey = opt_arg();
162 break;
163 case OPT_PASSIN:
164 passinarg = opt_arg();
165 break;
166 case OPT_PEERFORM:
167 if (!opt_format(opt_arg(), OPT_FMT_ANY, &peerform))
168 goto opthelp;
169 break;
170 case OPT_KEYFORM:
171 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
172 goto opthelp;
173 break;
174 case OPT_R_CASES:
175 if (!opt_rand(o))
176 goto end;
177 break;
178 case OPT_CONFIG:
179 conf = app_load_config_modules(opt_arg());
180 if (conf == NULL)
181 goto end;
182 break;
183 case OPT_PROV_CASES:
184 if (!opt_provider(o))
185 goto end;
186 break;
187 case OPT_ENGINE:
188 e = setup_engine(opt_arg(), 0);
189 break;
190 case OPT_PUBIN:
191 key_type = KEY_PUBKEY;
192 break;
193 case OPT_CERTIN:
194 key_type = KEY_CERT;
195 break;
196 case OPT_ASN1PARSE:
197 asn1parse = 1;
198 break;
199 case OPT_HEXDUMP:
200 hexdump = 1;
201 break;
202 case OPT_SIGN:
203 pkey_op = EVP_PKEY_OP_SIGN;
204 break;
205 case OPT_VERIFY:
206 pkey_op = EVP_PKEY_OP_VERIFY;
207 break;
208 case OPT_VERIFYRECOVER:
209 pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
210 break;
211 case OPT_ENCRYPT:
212 pkey_op = EVP_PKEY_OP_ENCRYPT;
213 break;
214 case OPT_DECRYPT:
215 pkey_op = EVP_PKEY_OP_DECRYPT;
216 break;
217 case OPT_DERIVE:
218 pkey_op = EVP_PKEY_OP_DERIVE;
219 break;
220 case OPT_KDF:
221 pkey_op = EVP_PKEY_OP_DERIVE;
222 key_type = KEY_NONE;
223 kdfalg = opt_arg();
224 break;
225 case OPT_KDFLEN:
226 kdflen = atoi(opt_arg());
227 break;
228 case OPT_REV:
229 rev = 1;
230 break;
231 case OPT_PKEYOPT:
232 if ((pkeyopts == NULL &&
233 (pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) ||
234 sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) {
235 BIO_puts(bio_err, "out of memory\n");
236 goto end;
237 }
238 break;
239 case OPT_PKEYOPT_PASSIN:
240 if ((pkeyopts_passin == NULL &&
241 (pkeyopts_passin = sk_OPENSSL_STRING_new_null()) == NULL) ||
242 sk_OPENSSL_STRING_push(pkeyopts_passin, opt_arg()) == 0) {
243 BIO_puts(bio_err, "out of memory\n");
244 goto end;
245 }
246 break;
247 case OPT_RAWIN:
248 rawin = 1;
249 break;
250 case OPT_DIGEST:
251 digestname = opt_arg();
252 break;
253 }
254 }
255
256 /* No extra arguments. */
257 argc = opt_num_rest();
258 if (argc != 0)
259 goto opthelp;
260
261 if (!app_RAND_load())
262 goto end;
263
264 if (rawin && pkey_op != EVP_PKEY_OP_SIGN && pkey_op != EVP_PKEY_OP_VERIFY) {
265 BIO_printf(bio_err,
266 "%s: -rawin can only be used with -sign or -verify\n",
267 prog);
268 goto opthelp;
269 }
270
271 if (digestname != NULL && !rawin) {
272 BIO_printf(bio_err,
273 "%s: -digest can only be used with -rawin\n",
274 prog);
275 goto opthelp;
276 }
277
278 if (rawin && rev) {
279 BIO_printf(bio_err, "%s: -rev cannot be used with raw input\n",
280 prog);
281 goto opthelp;
282 }
283
284 if (kdfalg != NULL) {
285 if (kdflen == 0) {
286 BIO_printf(bio_err,
287 "%s: no KDF length given (-kdflen parameter).\n", prog);
288 goto opthelp;
289 }
290 } else if (inkey == NULL) {
291 BIO_printf(bio_err,
292 "%s: no private key given (-inkey parameter).\n", prog);
293 goto opthelp;
294 } else if (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE) {
295 BIO_printf(bio_err,
296 "%s: no peer key given (-peerkey parameter).\n", prog);
297 goto opthelp;
298 }
299
300 if (rawin) {
301 if ((mctx = EVP_MD_CTX_new()) == NULL) {
302 BIO_printf(bio_err, "Error: out of memory\n");
303 goto end;
304 }
305 }
306 ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
307 passinarg, pkey_op, e, engine_impl, rawin, &pkey,
308 mctx, digestname, libctx, app_get0_propq());
309 if (ctx == NULL) {
310 BIO_printf(bio_err, "%s: Error initializing context\n", prog);
311 goto end;
312 }
313 if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
314 BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
315 goto end;
316 }
317 if (pkeyopts != NULL) {
318 int num = sk_OPENSSL_STRING_num(pkeyopts);
319 int i;
320
321 for (i = 0; i < num; ++i) {
322 const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
323
324 if (pkey_ctrl_string(ctx, opt) <= 0) {
325 BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
326 prog, opt);
327 goto end;
328 }
329 }
330 }
331 if (pkeyopts_passin != NULL) {
332 int num = sk_OPENSSL_STRING_num(pkeyopts_passin);
333 int i;
334
335 for (i = 0; i < num; i++) {
336 char *opt = sk_OPENSSL_STRING_value(pkeyopts_passin, i);
337 char *passin = strchr(opt, ':');
338 char *passwd;
339
340 if (passin == NULL) {
341 /* Get password interactively */
342 char passwd_buf[4096];
343 int r;
344
345 BIO_snprintf(passwd_buf, sizeof(passwd_buf), "Enter %s: ", opt);
346 r = EVP_read_pw_string(passwd_buf, sizeof(passwd_buf) - 1,
347 passwd_buf, 0);
348 if (r < 0) {
349 if (r == -2)
350 BIO_puts(bio_err, "user abort\n");
351 else
352 BIO_puts(bio_err, "entry failed\n");
353 goto end;
354 }
355 passwd = OPENSSL_strdup(passwd_buf);
356 if (passwd == NULL) {
357 BIO_puts(bio_err, "out of memory\n");
358 goto end;
359 }
360 } else {
361 /* Get password as a passin argument: First split option name
362 * and passphrase argument into two strings */
363 *passin = 0;
364 passin++;
365 if (app_passwd(passin, NULL, &passwd, NULL) == 0) {
366 BIO_printf(bio_err, "failed to get '%s'\n", opt);
367 goto end;
368 }
369 }
370
371 if (EVP_PKEY_CTX_ctrl_str(ctx, opt, passwd) <= 0) {
372 BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
373 prog, opt);
374 goto end;
375 }
376 OPENSSL_free(passwd);
377 }
378 }
379
380 if (sigfile != NULL && (pkey_op != EVP_PKEY_OP_VERIFY)) {
381 BIO_printf(bio_err,
382 "%s: Signature file specified for non verify\n", prog);
383 goto end;
384 }
385
386 if (sigfile == NULL && (pkey_op == EVP_PKEY_OP_VERIFY)) {
387 BIO_printf(bio_err,
388 "%s: No signature file specified for verify\n", prog);
389 goto end;
390 }
391
392 if (pkey_op != EVP_PKEY_OP_DERIVE) {
393 in = bio_open_default(infile, 'r', FORMAT_BINARY);
394 if (infile != NULL) {
395 struct stat st;
396
397 if (stat(infile, &st) == 0 && st.st_size <= INT_MAX)
398 filesize = (int)st.st_size;
399 }
400 if (in == NULL)
401 goto end;
402 }
403 out = bio_open_default(outfile, 'w', FORMAT_BINARY);
404 if (out == NULL)
405 goto end;
406
407 if (sigfile != NULL) {
408 BIO *sigbio = BIO_new_file(sigfile, "rb");
409
410 if (sigbio == NULL) {
411 BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
412 goto end;
413 }
414 siglen = bio_to_mem(&sig, keysize * 10, sigbio);
415 BIO_free(sigbio);
416 if (siglen < 0) {
417 BIO_printf(bio_err, "Error reading signature data\n");
418 goto end;
419 }
420 }
421
422 /* Raw input data is handled elsewhere */
423 if (in != NULL && !rawin) {
424 /* Read the input data */
425 buf_inlen = bio_to_mem(&buf_in, -1, in);
426 if (buf_inlen < 0) {
427 BIO_printf(bio_err, "Error reading input Data\n");
428 goto end;
429 }
430 if (rev) {
431 size_t i;
432 unsigned char ctmp;
433 size_t l = (size_t)buf_inlen;
434 for (i = 0; i < l / 2; i++) {
435 ctmp = buf_in[i];
436 buf_in[i] = buf_in[l - 1 - i];
437 buf_in[l - 1 - i] = ctmp;
438 }
439 }
440 }
441
442 /* Sanity check the input if the input is not raw */
443 if (!rawin
444 && buf_inlen > EVP_MAX_MD_SIZE
445 && (pkey_op == EVP_PKEY_OP_SIGN
446 || pkey_op == EVP_PKEY_OP_VERIFY)) {
447 BIO_printf(bio_err,
448 "Error: The input data looks too long to be a hash\n");
449 goto end;
450 }
451
452 if (pkey_op == EVP_PKEY_OP_VERIFY) {
453 if (rawin) {
454 rv = do_raw_keyop(pkey_op, mctx, pkey, in, filesize, sig, siglen,
455 NULL, 0);
456 } else {
457 rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
458 buf_in, (size_t)buf_inlen);
459 }
460 if (rv == 1) {
461 BIO_puts(out, "Signature Verified Successfully\n");
462 ret = 0;
463 } else {
464 BIO_puts(out, "Signature Verification Failure\n");
465 }
466 goto end;
467 }
468 if (rawin) {
469 /* rawin allocates the buffer in do_raw_keyop() */
470 rv = do_raw_keyop(pkey_op, mctx, pkey, in, filesize, NULL, 0,
471 &buf_out, (size_t *)&buf_outlen);
472 } else {
473 if (kdflen != 0) {
474 buf_outlen = kdflen;
475 rv = 1;
476 } else {
477 rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
478 buf_in, (size_t)buf_inlen);
479 }
480 if (rv > 0 && buf_outlen != 0) {
481 buf_out = app_malloc(buf_outlen, "buffer output");
482 rv = do_keyop(ctx, pkey_op,
483 buf_out, (size_t *)&buf_outlen,
484 buf_in, (size_t)buf_inlen);
485 }
486 }
487 if (rv <= 0) {
488 if (pkey_op != EVP_PKEY_OP_DERIVE) {
489 BIO_puts(bio_err, "Public Key operation error\n");
490 } else {
491 BIO_puts(bio_err, "Key derivation failed\n");
492 }
493 goto end;
494 }
495 ret = 0;
496
497 if (asn1parse) {
498 if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
499 ERR_print_errors(bio_err); /* but still return success */
500 } else if (hexdump) {
501 BIO_dump(out, (char *)buf_out, buf_outlen);
502 } else {
503 BIO_write(out, buf_out, buf_outlen);
504 }
505
506 end:
507 if (ret != 0)
508 ERR_print_errors(bio_err);
509 EVP_MD_CTX_free(mctx);
510 EVP_PKEY_CTX_free(ctx);
511 EVP_MD_free(md);
512 release_engine(e);
513 BIO_free(in);
514 BIO_free_all(out);
515 OPENSSL_free(buf_in);
516 OPENSSL_free(buf_out);
517 OPENSSL_free(sig);
518 sk_OPENSSL_STRING_free(pkeyopts);
519 sk_OPENSSL_STRING_free(pkeyopts_passin);
520 NCONF_free(conf);
521 return ret;
522 }
523
init_ctx(const char * kdfalg,int * pkeysize,const char * keyfile,int keyform,int key_type,char * passinarg,int pkey_op,ENGINE * e,const int engine_impl,int rawin,EVP_PKEY ** ppkey,EVP_MD_CTX * mctx,const char * digestname,OSSL_LIB_CTX * libctx,const char * propq)524 static EVP_PKEY_CTX *init_ctx(const char *kdfalg, int *pkeysize,
525 const char *keyfile, int keyform, int key_type,
526 char *passinarg, int pkey_op, ENGINE *e,
527 const int engine_impl, int rawin,
528 EVP_PKEY **ppkey, EVP_MD_CTX *mctx, const char *digestname,
529 OSSL_LIB_CTX *libctx, const char *propq)
530 {
531 EVP_PKEY *pkey = NULL;
532 EVP_PKEY_CTX *ctx = NULL;
533 ENGINE *impl = NULL;
534 char *passin = NULL;
535 int rv = -1;
536 X509 *x;
537
538 if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
539 || (pkey_op == EVP_PKEY_OP_DERIVE))
540 && (key_type != KEY_PRIVKEY && kdfalg == NULL)) {
541 BIO_printf(bio_err, "A private key is needed for this operation\n");
542 goto end;
543 }
544 if (!app_passwd(passinarg, NULL, &passin, NULL)) {
545 BIO_printf(bio_err, "Error getting password\n");
546 goto end;
547 }
548 switch (key_type) {
549 case KEY_PRIVKEY:
550 pkey = load_key(keyfile, keyform, 0, passin, e, "private key");
551 break;
552
553 case KEY_PUBKEY:
554 pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "public key");
555 break;
556
557 case KEY_CERT:
558 x = load_cert(keyfile, keyform, "Certificate");
559 if (x) {
560 pkey = X509_get_pubkey(x);
561 X509_free(x);
562 }
563 break;
564
565 case KEY_NONE:
566 break;
567
568 }
569
570 #ifndef OPENSSL_NO_ENGINE
571 if (engine_impl)
572 impl = e;
573 #endif
574
575 if (kdfalg != NULL) {
576 int kdfnid = OBJ_sn2nid(kdfalg);
577
578 if (kdfnid == NID_undef) {
579 kdfnid = OBJ_ln2nid(kdfalg);
580 if (kdfnid == NID_undef) {
581 BIO_printf(bio_err, "The given KDF \"%s\" is unknown.\n",
582 kdfalg);
583 goto end;
584 }
585 }
586 if (impl != NULL)
587 ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
588 else
589 ctx = EVP_PKEY_CTX_new_from_name(libctx, kdfalg, propq);
590 } else {
591 if (pkey == NULL)
592 goto end;
593
594 *pkeysize = EVP_PKEY_get_size(pkey);
595 if (impl != NULL)
596 ctx = EVP_PKEY_CTX_new(pkey, impl);
597 else
598 ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey, propq);
599 if (ppkey != NULL)
600 *ppkey = pkey;
601 EVP_PKEY_free(pkey);
602 }
603
604 if (ctx == NULL)
605 goto end;
606
607 if (rawin) {
608 EVP_MD_CTX_set_pkey_ctx(mctx, ctx);
609
610 switch (pkey_op) {
611 case EVP_PKEY_OP_SIGN:
612 rv = EVP_DigestSignInit_ex(mctx, NULL, digestname, libctx, propq,
613 pkey, NULL);
614 break;
615
616 case EVP_PKEY_OP_VERIFY:
617 rv = EVP_DigestVerifyInit_ex(mctx, NULL, digestname, libctx, propq,
618 pkey, NULL);
619 break;
620 }
621
622 } else {
623 switch (pkey_op) {
624 case EVP_PKEY_OP_SIGN:
625 rv = EVP_PKEY_sign_init(ctx);
626 break;
627
628 case EVP_PKEY_OP_VERIFY:
629 rv = EVP_PKEY_verify_init(ctx);
630 break;
631
632 case EVP_PKEY_OP_VERIFYRECOVER:
633 rv = EVP_PKEY_verify_recover_init(ctx);
634 break;
635
636 case EVP_PKEY_OP_ENCRYPT:
637 rv = EVP_PKEY_encrypt_init(ctx);
638 break;
639
640 case EVP_PKEY_OP_DECRYPT:
641 rv = EVP_PKEY_decrypt_init(ctx);
642 break;
643
644 case EVP_PKEY_OP_DERIVE:
645 rv = EVP_PKEY_derive_init(ctx);
646 break;
647 }
648 }
649
650 if (rv <= 0) {
651 EVP_PKEY_CTX_free(ctx);
652 ctx = NULL;
653 }
654
655 end:
656 OPENSSL_free(passin);
657 return ctx;
658
659 }
660
setup_peer(EVP_PKEY_CTX * ctx,int peerform,const char * file,ENGINE * e)661 static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file,
662 ENGINE *e)
663 {
664 EVP_PKEY *peer = NULL;
665 ENGINE *engine = NULL;
666 int ret;
667
668 if (peerform == FORMAT_ENGINE)
669 engine = e;
670 peer = load_pubkey(file, peerform, 0, NULL, engine, "peer key");
671 if (peer == NULL) {
672 BIO_printf(bio_err, "Error reading peer key %s\n", file);
673 return 0;
674 }
675
676 ret = EVP_PKEY_derive_set_peer(ctx, peer) > 0;
677
678 EVP_PKEY_free(peer);
679 return ret;
680 }
681
do_keyop(EVP_PKEY_CTX * ctx,int pkey_op,unsigned char * out,size_t * poutlen,const unsigned char * in,size_t inlen)682 static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
683 unsigned char *out, size_t *poutlen,
684 const unsigned char *in, size_t inlen)
685 {
686 int rv = 0;
687 switch (pkey_op) {
688 case EVP_PKEY_OP_VERIFYRECOVER:
689 rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
690 break;
691
692 case EVP_PKEY_OP_SIGN:
693 rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
694 break;
695
696 case EVP_PKEY_OP_ENCRYPT:
697 rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
698 break;
699
700 case EVP_PKEY_OP_DECRYPT:
701 rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
702 break;
703
704 case EVP_PKEY_OP_DERIVE:
705 rv = EVP_PKEY_derive(ctx, out, poutlen);
706 break;
707
708 }
709 return rv;
710 }
711
712 #define TBUF_MAXSIZE 2048
713
do_raw_keyop(int pkey_op,EVP_MD_CTX * mctx,EVP_PKEY * pkey,BIO * in,int filesize,unsigned char * sig,int siglen,unsigned char ** out,size_t * poutlen)714 static int do_raw_keyop(int pkey_op, EVP_MD_CTX *mctx,
715 EVP_PKEY *pkey, BIO *in,
716 int filesize, unsigned char *sig, int siglen,
717 unsigned char **out, size_t *poutlen)
718 {
719 int rv = 0;
720 unsigned char tbuf[TBUF_MAXSIZE];
721 unsigned char *mbuf = NULL;
722 int buf_len = 0;
723
724 /* Some algorithms only support oneshot digests */
725 if (EVP_PKEY_get_id(pkey) == EVP_PKEY_ED25519
726 || EVP_PKEY_get_id(pkey) == EVP_PKEY_ED448) {
727 if (filesize < 0) {
728 BIO_printf(bio_err,
729 "Error: unable to determine file size for oneshot operation\n");
730 goto end;
731 }
732 mbuf = app_malloc(filesize, "oneshot sign/verify buffer");
733 switch(pkey_op) {
734 case EVP_PKEY_OP_VERIFY:
735 buf_len = BIO_read(in, mbuf, filesize);
736 if (buf_len != filesize) {
737 BIO_printf(bio_err, "Error reading raw input data\n");
738 goto end;
739 }
740 rv = EVP_DigestVerify(mctx, sig, (size_t)siglen, mbuf, buf_len);
741 break;
742 case EVP_PKEY_OP_SIGN:
743 buf_len = BIO_read(in, mbuf, filesize);
744 if (buf_len != filesize) {
745 BIO_printf(bio_err, "Error reading raw input data\n");
746 goto end;
747 }
748 rv = EVP_DigestSign(mctx, NULL, poutlen, mbuf, buf_len);
749 if (rv == 1 && out != NULL) {
750 *out = app_malloc(*poutlen, "buffer output");
751 rv = EVP_DigestSign(mctx, *out, poutlen, mbuf, buf_len);
752 }
753 break;
754 }
755 goto end;
756 }
757
758 switch(pkey_op) {
759 case EVP_PKEY_OP_VERIFY:
760 for (;;) {
761 buf_len = BIO_read(in, tbuf, TBUF_MAXSIZE);
762 if (buf_len == 0)
763 break;
764 if (buf_len < 0) {
765 BIO_printf(bio_err, "Error reading raw input data\n");
766 goto end;
767 }
768 rv = EVP_DigestVerifyUpdate(mctx, tbuf, (size_t)buf_len);
769 if (rv != 1) {
770 BIO_printf(bio_err, "Error verifying raw input data\n");
771 goto end;
772 }
773 }
774 rv = EVP_DigestVerifyFinal(mctx, sig, (size_t)siglen);
775 break;
776 case EVP_PKEY_OP_SIGN:
777 for (;;) {
778 buf_len = BIO_read(in, tbuf, TBUF_MAXSIZE);
779 if (buf_len == 0)
780 break;
781 if (buf_len < 0) {
782 BIO_printf(bio_err, "Error reading raw input data\n");
783 goto end;
784 }
785 rv = EVP_DigestSignUpdate(mctx, tbuf, (size_t)buf_len);
786 if (rv != 1) {
787 BIO_printf(bio_err, "Error signing raw input data\n");
788 goto end;
789 }
790 }
791 rv = EVP_DigestSignFinal(mctx, NULL, poutlen);
792 if (rv == 1 && out != NULL) {
793 *out = app_malloc(*poutlen, "buffer output");
794 rv = EVP_DigestSignFinal(mctx, *out, poutlen);
795 }
796 break;
797 }
798
799 end:
800 OPENSSL_free(mbuf);
801 return rv;
802 }
803