pkeyutl.c@ 109302

Last change on this file since 109302 was 109052, checked in by vboxsync, 4 weeks ago
openssl-3.4.1: Applied our changes, regenerated files, added missing files and functions. This time with a three way merge. bugref:10890
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 27.7 KB

Line
1	/*
2	* Copyright 2006-2025 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, const char *kemop,
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	unsigned char secret, size_t psecretlen);
37
38	static int do_raw_keyop(int pkey_op, EVP_MD_CTX *mctx,
39	EVP_PKEY pkey, BIO in,
40	int filesize, unsigned char *sig, int siglen,
41	unsigned char *out, size_t poutlen);
42
43	typedef enum OPTION_choice {
44	OPT_COMMON,
45	OPT_ENGINE, OPT_ENGINE_IMPL, OPT_IN, OPT_OUT,
46	OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN,
47	OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
48	OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN,
49	OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT, OPT_PKEYOPT_PASSIN, OPT_KDF,
50	OPT_KDFLEN, OPT_R_ENUM, OPT_PROV_ENUM,
51	OPT_DECAP, OPT_ENCAP, OPT_SECOUT, OPT_KEMOP,
52	OPT_CONFIG,
53	OPT_RAWIN, OPT_DIGEST
54	} OPTION_CHOICE;
55
56	const OPTIONS pkeyutl_options[] = {
57	OPT_SECTION("General"),
58	{"help", OPT_HELP, '-', "Display this summary"},
59	#ifndef OPENSSL_NO_ENGINE
60	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
61	{"engine_impl", OPT_ENGINE_IMPL, '-',
62	"Also use engine given by -engine for crypto operations"},
63	#endif
64	{"sign", OPT_SIGN, '-', "Sign input data with private key"},
65	{"verify", OPT_VERIFY, '-', "Verify with public key"},
66	{"encrypt", OPT_ENCRYPT, '-', "Encrypt input data with public key"},
67	{"decrypt", OPT_DECRYPT, '-', "Decrypt input data with private key"},
68	{"derive", OPT_DERIVE, '-', "Derive shared secret from own and peer (EC)DH keys"},
69	{"decap", OPT_DECAP, '-', "Decapsulate shared secret"},
70	{"encap", OPT_ENCAP, '-', "Encapsulate shared secret"},
71	OPT_CONFIG_OPTION,
72
73	OPT_SECTION("Input"),
74	{"in", OPT_IN, '<', "Input file - default stdin"},
75	{"rawin", OPT_RAWIN, '-', "Indicate the input data is in raw form"},
76	{"inkey", OPT_INKEY, 's', "Input key, by default private key"},
77	{"pubin", OPT_PUBIN, '-', "Input key is a public key"},
78	{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
79	{"peerkey", OPT_PEERKEY, 's', "Peer key file used in key derivation"},
80	{"peerform", OPT_PEERFORM, 'E', "Peer key format (DER/PEM/P12/ENGINE)"},
81	{"certin", OPT_CERTIN, '-', "Input is a cert with a public key"},
82	{"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
83	{"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"},
84	{"keyform", OPT_KEYFORM, 'E', "Private key format (ENGINE, other values ignored)"},
85
86	OPT_SECTION("Output"),
87	{"out", OPT_OUT, '>', "Output file - default stdout"},
88	{"secret", OPT_SECOUT, '>', "File to store secret on encapsulation"},
89	{"asn1parse", OPT_ASN1PARSE, '-',
90	"parse the output as ASN.1 data to check its DER encoding and print errors"},
91	{"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
92	{"verifyrecover", OPT_VERIFYRECOVER, '-',
93	"Verify RSA signature, recovering original signature input data"},
94
95	OPT_SECTION("Signing/Derivation/Encapsulation"),
96	{"digest", OPT_DIGEST, 's',
97	"Specify the digest algorithm when signing the raw input data"},
98	{"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
99	{"pkeyopt_passin", OPT_PKEYOPT_PASSIN, 's',
100	"Public key option that is read as a passphrase argument opt:passphrase"},
101	{"kdf", OPT_KDF, 's', "Use KDF algorithm"},
102	{"kdflen", OPT_KDFLEN, 'p', "KDF algorithm output length"},
103	{"kemop", OPT_KEMOP, 's', "KEM operation specific to the key algorithm"},
104
105	OPT_R_OPTIONS,
106	OPT_PROV_OPTIONS,
107	{NULL}
108	};
109
110	int pkeyutl_main(int argc, char **argv)
111	{
112	CONF *conf = NULL;
113	BIO in = NULL, out = NULL, *secout = NULL;
114	ENGINE *e = NULL;
115	EVP_PKEY_CTX *ctx = NULL;
116	EVP_PKEY *pkey = NULL;
117	char infile = NULL, outfile = NULL, secoutfile = NULL, sigfile = NULL, *passinarg = NULL;
118	char hexdump = 0, asn1parse = 0, rev = 0, *prog;
119	unsigned char buf_in = NULL, buf_out = NULL, sig = NULL, secret = NULL;
120	OPTION_CHOICE o;
121	int buf_inlen = 0, siglen = -1;
122	int keyform = FORMAT_UNDEF, peerform = FORMAT_UNDEF;
123	int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
124	int engine_impl = 0;
125	int ret = 1, rv = -1;
126	size_t buf_outlen = 0, secretlen = 0;
127	const char *inkey = NULL;
128	const char *peerkey = NULL;
129	const char kdfalg = NULL, digestname = NULL, *kemop = NULL;
130	int kdflen = 0;
131	STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
132	STACK_OF(OPENSSL_STRING) *pkeyopts_passin = NULL;
133	int rawin = 0;
134	EVP_MD_CTX *mctx = NULL;
135	EVP_MD *md = NULL;
136	int filesize = -1;
137	OSSL_LIB_CTX *libctx = app_get0_libctx();
138
139	prog = opt_init(argc, argv, pkeyutl_options);
140	while ((o = opt_next()) != OPT_EOF) {
141	switch (o) {
142	case OPT_EOF:
143	case OPT_ERR:
144	opthelp:
145	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
146	goto end;
147	case OPT_HELP:
148	opt_help(pkeyutl_options);
149	ret = 0;
150	goto end;
151	case OPT_IN:
152	infile = opt_arg();
153	break;
154	case OPT_OUT:
155	outfile = opt_arg();
156	break;
157	case OPT_SECOUT:
158	secoutfile = opt_arg();
159	break;
160	case OPT_SIGFILE:
161	sigfile = opt_arg();
162	break;
163	case OPT_ENGINE_IMPL:
164	engine_impl = 1;
165	break;
166	case OPT_INKEY:
167	inkey = opt_arg();
168	break;
169	case OPT_PEERKEY:
170	peerkey = opt_arg();
171	break;
172	case OPT_PASSIN:
173	passinarg = opt_arg();
174	break;
175	case OPT_PEERFORM:
176	if (!opt_format(opt_arg(), OPT_FMT_ANY, &peerform))
177	goto opthelp;
178	break;
179	case OPT_KEYFORM:
180	if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
181	goto opthelp;
182	break;
183	case OPT_R_CASES:
184	if (!opt_rand(o))
185	goto end;
186	break;
187	case OPT_CONFIG:
188	conf = app_load_config_modules(opt_arg());
189	if (conf == NULL)
190	goto end;
191	break;
192	case OPT_PROV_CASES:
193	if (!opt_provider(o))
194	goto end;
195	break;
196	case OPT_ENGINE:
197	e = setup_engine(opt_arg(), 0);
198	break;
199	case OPT_PUBIN:
200	key_type = KEY_PUBKEY;
201	break;
202	case OPT_CERTIN:
203	key_type = KEY_CERT;
204	break;
205	case OPT_ASN1PARSE:
206	asn1parse = 1;
207	break;
208	case OPT_HEXDUMP:
209	hexdump = 1;
210	break;
211	case OPT_SIGN:
212	pkey_op = EVP_PKEY_OP_SIGN;
213	break;
214	case OPT_VERIFY:
215	pkey_op = EVP_PKEY_OP_VERIFY;
216	break;
217	case OPT_VERIFYRECOVER:
218	pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
219	break;
220	case OPT_ENCRYPT:
221	pkey_op = EVP_PKEY_OP_ENCRYPT;
222	break;
223	case OPT_DECRYPT:
224	pkey_op = EVP_PKEY_OP_DECRYPT;
225	break;
226	case OPT_DERIVE:
227	pkey_op = EVP_PKEY_OP_DERIVE;
228	break;
229	case OPT_DECAP:
230	pkey_op = EVP_PKEY_OP_DECAPSULATE;
231	break;
232	case OPT_ENCAP:
233	pkey_op = EVP_PKEY_OP_ENCAPSULATE;
234	break;
235	case OPT_KEMOP:
236	kemop = opt_arg();
237	break;
238	case OPT_KDF:
239	pkey_op = EVP_PKEY_OP_DERIVE;
240	key_type = KEY_NONE;
241	kdfalg = opt_arg();
242	break;
243	case OPT_KDFLEN:
244	kdflen = atoi(opt_arg());
245	break;
246	case OPT_REV:
247	rev = 1;
248	break;
249	case OPT_PKEYOPT:
250	if ((pkeyopts == NULL &&
251	(pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) \|\|
252	sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) {
253	BIO_puts(bio_err, "out of memory\n");
254	goto end;
255	}
256	break;
257	case OPT_PKEYOPT_PASSIN:
258	if ((pkeyopts_passin == NULL &&
259	(pkeyopts_passin = sk_OPENSSL_STRING_new_null()) == NULL) \|\|
260	sk_OPENSSL_STRING_push(pkeyopts_passin, opt_arg()) == 0) {
261	BIO_puts(bio_err, "out of memory\n");
262	goto end;
263	}
264	break;
265	case OPT_RAWIN:
266	rawin = 1;
267	break;
268	case OPT_DIGEST:
269	digestname = opt_arg();
270	break;
271	}
272	}
273
274	/* No extra arguments. */
275	if (!opt_check_rest_arg(NULL))
276	goto opthelp;
277
278	if (!app_RAND_load())
279	goto end;
280
281	if (rawin && pkey_op != EVP_PKEY_OP_SIGN && pkey_op != EVP_PKEY_OP_VERIFY) {
282	BIO_printf(bio_err,
283	"%s: -rawin can only be used with -sign or -verify\n",
284	prog);
285	goto opthelp;
286	}
287
288	if (digestname != NULL && !rawin) {
289	BIO_printf(bio_err,
290	"%s: -digest can only be used with -rawin\n",
291	prog);
292	goto opthelp;
293	}
294
295	if (rawin && rev) {
296	BIO_printf(bio_err, "%s: -rev cannot be used with raw input\n",
297	prog);
298	goto opthelp;
299	}
300
301	if (kdfalg != NULL) {
302	if (kdflen == 0) {
303	BIO_printf(bio_err,
304	"%s: no KDF length given (-kdflen parameter).\n", prog);
305	goto opthelp;
306	}
307	} else if (inkey == NULL) {
308	BIO_printf(bio_err,
309	"%s: no private key given (-inkey parameter).\n", prog);
310	goto opthelp;
311	} else if (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE) {
312	BIO_printf(bio_err,
313	"%s: -peerkey option not allowed without -derive.\n", prog);
314	goto opthelp;
315	} else if (peerkey == NULL && pkey_op == EVP_PKEY_OP_DERIVE) {
316	BIO_printf(bio_err,
317	"%s: missing -peerkey option for -derive operation.\n", prog);
318	goto opthelp;
319	}
320
321	if (rawin) {
322	if ((mctx = EVP_MD_CTX_new()) == NULL) {
323	BIO_printf(bio_err, "Error: out of memory\n");
324	goto end;
325	}
326	}
327	ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
328	passinarg, pkey_op, e, engine_impl, rawin, &pkey,
329	mctx, digestname, kemop, libctx, app_get0_propq());
330	if (ctx == NULL) {
331	BIO_printf(bio_err, "%s: Error initializing context\n", prog);
332	goto end;
333	}
334	if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
335	BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
336	goto end;
337	}
338	if (pkeyopts != NULL) {
339	int num = sk_OPENSSL_STRING_num(pkeyopts);
340	int i;
341
342	for (i = 0; i < num; ++i) {
343	const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
344
345	if (pkey_ctrl_string(ctx, opt) <= 0) {
346	BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
347	prog, opt);
348	goto end;
349	}
350	}
351	}
352	if (pkeyopts_passin != NULL) {
353	int num = sk_OPENSSL_STRING_num(pkeyopts_passin);
354	int i;
355
356	for (i = 0; i < num; i++) {
357	char *opt = sk_OPENSSL_STRING_value(pkeyopts_passin, i);
358	char *passin = strchr(opt, ':');
359	char *passwd;
360
361	if (passin == NULL) {
362	/* Get password interactively */
363	char passwd_buf[4096];
364	int r;
365
366	BIO_snprintf(passwd_buf, sizeof(passwd_buf), "Enter %s: ", opt);
367	r = EVP_read_pw_string(passwd_buf, sizeof(passwd_buf) - 1,
368	passwd_buf, 0);
369	if (r < 0) {
370	if (r == -2)
371	BIO_puts(bio_err, "user abort\n");
372	else
373	BIO_puts(bio_err, "entry failed\n");
374	goto end;
375	}
376	passwd = OPENSSL_strdup(passwd_buf);
377	if (passwd == NULL) {
378	BIO_puts(bio_err, "out of memory\n");
379	goto end;
380	}
381	} else {
382	/* Get password as a passin argument: First split option name
383	* and passphrase argument into two strings */
384	*passin = 0;
385	passin++;
386	if (app_passwd(passin, NULL, &passwd, NULL) == 0) {
387	BIO_printf(bio_err, "failed to get '%s'\n", opt);
388	goto end;
389	}
390	}
391
392	if (EVP_PKEY_CTX_ctrl_str(ctx, opt, passwd) <= 0) {
393	BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
394	prog, opt);
395	goto end;
396	}
397	OPENSSL_free(passwd);
398	}
399	}
400
401	if (sigfile != NULL && (pkey_op != EVP_PKEY_OP_VERIFY)) {
402	BIO_printf(bio_err,
403	"%s: Signature file specified for non verify\n", prog);
404	goto end;
405	}
406
407	if (sigfile == NULL && (pkey_op == EVP_PKEY_OP_VERIFY)) {
408	BIO_printf(bio_err,
409	"%s: No signature file specified for verify\n", prog);
410	goto end;
411	}
412
413	if (pkey_op != EVP_PKEY_OP_DERIVE && pkey_op != EVP_PKEY_OP_ENCAPSULATE) {
414	in = bio_open_default(infile, 'r', FORMAT_BINARY);
415	if (infile != NULL) {
416	struct stat st;
417
418	if (stat(infile, &st) == 0 && st.st_size <= INT_MAX)
419	filesize = (int)st.st_size;
420	}
421	if (in == NULL)
422	goto end;
423	}
424	out = bio_open_default(outfile, 'w', FORMAT_BINARY);
425	if (out == NULL)
426	goto end;
427
428	if (pkey_op == EVP_PKEY_OP_ENCAPSULATE) {
429	if (secoutfile == NULL) {
430	BIO_printf(bio_err, "Encapsulation requires '-secret' argument\n");
431	goto end;
432	}
433	secout = bio_open_default(secoutfile, 'w', FORMAT_BINARY);
434	if (secout == NULL)
435	goto end;
436	}
437
438	if (sigfile != NULL) {
439	BIO *sigbio = BIO_new_file(sigfile, "rb");
440
441	if (sigbio == NULL) {
442	BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
443	goto end;
444	}
445	siglen = bio_to_mem(&sig, keysize * 10, sigbio);
446	BIO_free(sigbio);
447	if (siglen < 0) {
448	BIO_printf(bio_err, "Error reading signature data\n");
449	goto end;
450	}
451	}
452
453	/* Raw input data is handled elsewhere */
454	if (in != NULL && !rawin) {
455	/* Read the input data */
456	buf_inlen = bio_to_mem(&buf_in, -1, in);
457	if (buf_inlen < 0) {
458	BIO_printf(bio_err, "Error reading input Data\n");
459	goto end;
460	}
461	if (rev) {
462	size_t i;
463	unsigned char ctmp;
464	size_t l = (size_t)buf_inlen;
465	for (i = 0; i < l / 2; i++) {
466	ctmp = buf_in[i];
467	buf_in[i] = buf_in[l - 1 - i];
468	buf_in[l - 1 - i] = ctmp;
469	}
470	}
471	}
472
473	/* Sanity check the input if the input is not raw */
474	if (!rawin
475	&& buf_inlen > EVP_MAX_MD_SIZE
476	&& (pkey_op == EVP_PKEY_OP_SIGN
477	\|\| pkey_op == EVP_PKEY_OP_VERIFY)) {
478	BIO_printf(bio_err,
479	"Error: The input data looks too long to be a hash\n");
480	goto end;
481	}
482
483	if (pkey_op == EVP_PKEY_OP_VERIFY) {
484	if (rawin) {
485	rv = do_raw_keyop(pkey_op, mctx, pkey, in, filesize, sig, siglen,
486	NULL, 0);
487	} else {
488	rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
489	buf_in, (size_t)buf_inlen);
490	}
491	if (rv == 1) {
492	BIO_puts(out, "Signature Verified Successfully\n");
493	ret = 0;
494	} else {
495	BIO_puts(out, "Signature Verification Failure\n");
496	}
497	goto end;
498	}
499	if (rawin) {
500	/* rawin allocates the buffer in do_raw_keyop() */
501	rv = do_raw_keyop(pkey_op, mctx, pkey, in, filesize, NULL, 0,
502	&buf_out, (size_t *)&buf_outlen);
503	} else {
504	if (kdflen != 0) {
505	buf_outlen = kdflen;
506	rv = 1;
507	} else {
508	rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
509	buf_in, (size_t)buf_inlen, NULL, (size_t *)&secretlen);
510	}
511	if (rv > 0 && buf_outlen != 0) {
512	buf_out = app_malloc(buf_outlen, "buffer output");
513	if (secretlen > 0)
514	secret = app_malloc(secretlen, "secret output");
515	rv = do_keyop(ctx, pkey_op,
516	buf_out, (size_t *)&buf_outlen,
517	buf_in, (size_t)buf_inlen, secret, (size_t *)&secretlen);
518	}
519	}
520	if (rv <= 0) {
521	if (pkey_op != EVP_PKEY_OP_DERIVE) {
522	BIO_puts(bio_err, "Public Key operation error\n");
523	} else {
524	BIO_puts(bio_err, "Key derivation failed\n");
525	}
526	goto end;
527	}
528	ret = 0;
529
530	if (asn1parse) {
531	if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
532	ERR_print_errors(bio_err); /* but still return success */
533	} else if (hexdump) {
534	BIO_dump(out, (char *)buf_out, buf_outlen);
535	} else {
536	BIO_write(out, buf_out, buf_outlen);
537	}
538	if (secretlen > 0)
539	BIO_write(secout, secret, secretlen);
540
541	end:
542	if (ret != 0)
543	ERR_print_errors(bio_err);
544	EVP_MD_CTX_free(mctx);
545	EVP_PKEY_CTX_free(ctx);
546	EVP_MD_free(md);
547	release_engine(e);
548	BIO_free(in);
549	BIO_free_all(out);
550	BIO_free_all(secout);
551	OPENSSL_free(buf_in);
552	OPENSSL_free(buf_out);
553	OPENSSL_free(sig);
554	OPENSSL_free(secret);
555	sk_OPENSSL_STRING_free(pkeyopts);
556	sk_OPENSSL_STRING_free(pkeyopts_passin);
557	NCONF_free(conf);
558	return ret;
559	}
560
561	static EVP_PKEY_CTX init_ctx(const char kdfalg, int *pkeysize,
562	const char *keyfile, int keyform, int key_type,
563	char passinarg, int pkey_op, ENGINE e,
564	const int engine_impl, int rawin,
565	EVP_PKEY *ppkey, EVP_MD_CTX mctx, const char *digestname,
566	const char kemop, OSSL_LIB_CTX libctx, const char *propq)
567	{
568	EVP_PKEY *pkey = NULL;
569	EVP_PKEY_CTX *ctx = NULL;
570	ENGINE *impl = NULL;
571	char *passin = NULL;
572	int rv = -1;
573	X509 *x;
574
575	if (((pkey_op == EVP_PKEY_OP_SIGN) \|\| (pkey_op == EVP_PKEY_OP_DECRYPT)
576	\|\| (pkey_op == EVP_PKEY_OP_DERIVE))
577	&& (key_type != KEY_PRIVKEY && kdfalg == NULL)) {
578	BIO_printf(bio_err, "A private key is needed for this operation\n");
579	goto end;
580	}
581	if (!app_passwd(passinarg, NULL, &passin, NULL)) {
582	BIO_printf(bio_err, "Error getting password\n");
583	goto end;
584	}
585	switch (key_type) {
586	case KEY_PRIVKEY:
587	pkey = load_key(keyfile, keyform, 0, passin, e, "private key");
588	break;
589
590	case KEY_PUBKEY:
591	pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "public key");
592	break;
593
594	case KEY_CERT:
595	x = load_cert(keyfile, keyform, "Certificate");
596	if (x) {
597	pkey = X509_get_pubkey(x);
598	X509_free(x);
599	}
600	break;
601
602	case KEY_NONE:
603	break;
604
605	}
606
607	#ifndef OPENSSL_NO_ENGINE
608	if (engine_impl)
609	impl = e;
610	#endif
611
612	if (kdfalg != NULL) {
613	int kdfnid = OBJ_sn2nid(kdfalg);
614
615	if (kdfnid == NID_undef) {
616	kdfnid = OBJ_ln2nid(kdfalg);
617	if (kdfnid == NID_undef) {
618	BIO_printf(bio_err, "The given KDF \"%s\" is unknown.\n",
619	kdfalg);
620	goto end;
621	}
622	}
623	if (impl != NULL)
624	ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
625	else
626	ctx = EVP_PKEY_CTX_new_from_name(libctx, kdfalg, propq);
627	} else {
628	if (pkey == NULL)
629	goto end;
630
631	*pkeysize = EVP_PKEY_get_size(pkey);
632	if (impl != NULL)
633	ctx = EVP_PKEY_CTX_new(pkey, impl);
634	else
635	ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey, propq);
636	if (ppkey != NULL)
637	*ppkey = pkey;
638	EVP_PKEY_free(pkey);
639	}
640
641	if (ctx == NULL)
642	goto end;
643
644	if (rawin) {
645	EVP_MD_CTX_set_pkey_ctx(mctx, ctx);
646
647	switch (pkey_op) {
648	case EVP_PKEY_OP_SIGN:
649	rv = EVP_DigestSignInit_ex(mctx, NULL, digestname, libctx, propq,
650	pkey, NULL);
651	break;
652
653	case EVP_PKEY_OP_VERIFY:
654	rv = EVP_DigestVerifyInit_ex(mctx, NULL, digestname, libctx, propq,
655	pkey, NULL);
656	break;
657	}
658
659	} else {
660	switch (pkey_op) {
661	case EVP_PKEY_OP_SIGN:
662	rv = EVP_PKEY_sign_init(ctx);
663	break;
664
665	case EVP_PKEY_OP_VERIFY:
666	rv = EVP_PKEY_verify_init(ctx);
667	break;
668
669	case EVP_PKEY_OP_VERIFYRECOVER:
670	rv = EVP_PKEY_verify_recover_init(ctx);
671	break;
672
673	case EVP_PKEY_OP_ENCRYPT:
674	rv = EVP_PKEY_encrypt_init(ctx);
675	break;
676
677	case EVP_PKEY_OP_DECRYPT:
678	rv = EVP_PKEY_decrypt_init(ctx);
679	break;
680
681	case EVP_PKEY_OP_DERIVE:
682	rv = EVP_PKEY_derive_init(ctx);
683	break;
684
685	case EVP_PKEY_OP_ENCAPSULATE:
686	rv = EVP_PKEY_encapsulate_init(ctx, NULL);
687	if (rv > 0 && kemop != NULL)
688	rv = EVP_PKEY_CTX_set_kem_op(ctx, kemop);
689	break;
690
691	case EVP_PKEY_OP_DECAPSULATE:
692	rv = EVP_PKEY_decapsulate_init(ctx, NULL);
693	if (rv > 0 && kemop != NULL)
694	rv = EVP_PKEY_CTX_set_kem_op(ctx, kemop);
695	break;
696	}
697	}
698
699	if (rv <= 0) {
700	EVP_PKEY_CTX_free(ctx);
701	ctx = NULL;
702	}
703
704	end:
705	OPENSSL_free(passin);
706	return ctx;
707
708	}
709
710	static int setup_peer(EVP_PKEY_CTX ctx, int peerform, const char file,
711	ENGINE *e)
712	{
713	EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
714	EVP_PKEY *peer = NULL;
715	ENGINE *engine = NULL;
716	int ret = 1;
717
718	if (peerform == FORMAT_ENGINE)
719	engine = e;
720	peer = load_pubkey(file, peerform, 0, NULL, engine, "peer key");
721	if (peer == NULL) {
722	BIO_printf(bio_err, "Error reading peer key %s\n", file);
723	return 0;
724	}
725	if (strcmp(EVP_PKEY_get0_type_name(peer), EVP_PKEY_get0_type_name(pkey)) != 0) {
726	BIO_printf(bio_err,
727	"Type of peer public key: %s does not match type of private key: %s\n",
728	EVP_PKEY_get0_type_name(peer), EVP_PKEY_get0_type_name(pkey));
729	ret = 0;
730	} else {
731	ret = EVP_PKEY_derive_set_peer(ctx, peer) > 0;
732	}
733
734	EVP_PKEY_free(peer);
735	return ret;
736	}
737
738	static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
739	unsigned char out, size_t poutlen,
740	const unsigned char *in, size_t inlen,
741	unsigned char secret, size_t pseclen)
742	{
743	int rv = 0;
744	switch (pkey_op) {
745	case EVP_PKEY_OP_VERIFYRECOVER:
746	rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
747	break;
748
749	case EVP_PKEY_OP_SIGN:
750	rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
751	break;
752
753	case EVP_PKEY_OP_ENCRYPT:
754	rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
755	break;
756
757	case EVP_PKEY_OP_DECRYPT:
758	rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
759	break;
760
761	case EVP_PKEY_OP_DERIVE:
762	rv = EVP_PKEY_derive(ctx, out, poutlen);
763	break;
764
765	case EVP_PKEY_OP_ENCAPSULATE:
766	rv = EVP_PKEY_encapsulate(ctx, out, poutlen, secret, pseclen);
767	break;
768
769	case EVP_PKEY_OP_DECAPSULATE:
770	rv = EVP_PKEY_decapsulate(ctx, out, poutlen, in, inlen);
771	break;
772
773	}
774	return rv;
775	}
776
777	#define TBUF_MAXSIZE 2048
778
779	static int do_raw_keyop(int pkey_op, EVP_MD_CTX *mctx,
780	EVP_PKEY pkey, BIO in,
781	int filesize, unsigned char *sig, int siglen,
782	unsigned char *out, size_t poutlen)
783	{
784	int rv = 0;
785	unsigned char tbuf[TBUF_MAXSIZE];
786	unsigned char *mbuf = NULL;
787	int buf_len = 0;
788
789	/* Some algorithms only support oneshot digests */
790	if (EVP_PKEY_get_id(pkey) == EVP_PKEY_ED25519
791	\|\| EVP_PKEY_get_id(pkey) == EVP_PKEY_ED448) {
792	if (filesize < 0) {
793	BIO_printf(bio_err,
794	"Error: unable to determine file size for oneshot operation\n");
795	goto end;
796	}
797	mbuf = app_malloc(filesize, "oneshot sign/verify buffer");
798	switch (pkey_op) {
799	case EVP_PKEY_OP_VERIFY:
800	buf_len = BIO_read(in, mbuf, filesize);
801	if (buf_len != filesize) {
802	BIO_printf(bio_err, "Error reading raw input data\n");
803	goto end;
804	}
805	rv = EVP_DigestVerify(mctx, sig, (size_t)siglen, mbuf, buf_len);
806	break;
807	case EVP_PKEY_OP_SIGN:
808	buf_len = BIO_read(in, mbuf, filesize);
809	if (buf_len != filesize) {
810	BIO_printf(bio_err, "Error reading raw input data\n");
811	goto end;
812	}
813	rv = EVP_DigestSign(mctx, NULL, poutlen, mbuf, buf_len);
814	if (rv == 1 && out != NULL) {
815	out = app_malloc(poutlen, "buffer output");
816	rv = EVP_DigestSign(mctx, *out, poutlen, mbuf, buf_len);
817	}
818	break;
819	}
820	goto end;
821	}
822
823	switch (pkey_op) {
824	case EVP_PKEY_OP_VERIFY:
825	for (;;) {
826	buf_len = BIO_read(in, tbuf, TBUF_MAXSIZE);
827	if (buf_len == 0)
828	break;
829	if (buf_len < 0) {
830	BIO_printf(bio_err, "Error reading raw input data\n");
831	goto end;
832	}
833	rv = EVP_DigestVerifyUpdate(mctx, tbuf, (size_t)buf_len);
834	if (rv != 1) {
835	BIO_printf(bio_err, "Error verifying raw input data\n");
836	goto end;
837	}
838	}
839	rv = EVP_DigestVerifyFinal(mctx, sig, (size_t)siglen);
840	break;
841	case EVP_PKEY_OP_SIGN:
842	for (;;) {
843	buf_len = BIO_read(in, tbuf, TBUF_MAXSIZE);
844	if (buf_len == 0)
845	break;
846	if (buf_len < 0) {
847	BIO_printf(bio_err, "Error reading raw input data\n");
848	goto end;
849	}
850	rv = EVP_DigestSignUpdate(mctx, tbuf, (size_t)buf_len);
851	if (rv != 1) {
852	BIO_printf(bio_err, "Error signing raw input data\n");
853	goto end;
854	}
855	}
856	rv = EVP_DigestSignFinal(mctx, NULL, poutlen);
857	if (rv == 1 && out != NULL) {
858	out = app_malloc(poutlen, "buffer output");
859	rv = EVP_DigestSignFinal(mctx, *out, poutlen);
860	}
861	break;
862	}
863
864	end:
865	OPENSSL_free(mbuf);
866	return rv;
867	}

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source: vbox/trunk/src/libs/openssl-3.4.1/apps/pkeyutl.c@ 109302

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