2 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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
13 #include <openssl/err.h>
14 #include <openssl/pem.h>
15 #include <openssl/evp.h>
22 static EVP_PKEY_CTX *init_ctx(const char *kdfalg, int *pkeysize,
23 const char *keyfile, int keyform, int key_type,
24 char *passinarg, int pkey_op, ENGINE *e,
27 static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file,
30 static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
31 unsigned char *out, size_t *poutlen,
32 const unsigned char *in, size_t inlen);
34 typedef enum OPTION_choice {
35 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
36 OPT_ENGINE, OPT_ENGINE_IMPL, OPT_IN, OPT_OUT,
37 OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN,
38 OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
39 OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN,
40 OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT, OPT_KDF, OPT_KDFLEN,
44 const OPTIONS pkeyutl_options[] = {
45 {"help", OPT_HELP, '-', "Display this summary"},
46 {"in", OPT_IN, '<', "Input file - default stdin"},
47 {"out", OPT_OUT, '>', "Output file - default stdout"},
48 {"pubin", OPT_PUBIN, '-', "Input is a public key"},
49 {"certin", OPT_CERTIN, '-', "Input is a cert with a public key"},
50 {"asn1parse", OPT_ASN1PARSE, '-', "asn1parse the output data"},
51 {"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
52 {"sign", OPT_SIGN, '-', "Sign input data with private key"},
53 {"verify", OPT_VERIFY, '-', "Verify with public key"},
54 {"verifyrecover", OPT_VERIFYRECOVER, '-',
55 "Verify with public key, recover original data"},
56 {"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
57 {"encrypt", OPT_ENCRYPT, '-', "Encrypt input data with public key"},
58 {"decrypt", OPT_DECRYPT, '-', "Decrypt input data with private key"},
59 {"derive", OPT_DERIVE, '-', "Derive shared secret"},
60 {"kdf", OPT_KDF, 's', "Use KDF algorithm"},
61 {"kdflen", OPT_KDFLEN, 'p', "KDF algorithm output length"},
62 {"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"},
63 {"inkey", OPT_INKEY, 's', "Input private key file"},
64 {"peerkey", OPT_PEERKEY, 's', "Peer key file used in key derivation"},
65 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
66 {"peerform", OPT_PEERFORM, 'E', "Peer key format - default PEM"},
67 {"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"},
68 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
70 #ifndef OPENSSL_NO_ENGINE
71 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
72 {"engine_impl", OPT_ENGINE_IMPL, '-',
73 "Also use engine given by -engine for crypto operations"},
78 int pkeyutl_main(int argc, char **argv)
80 BIO *in = NULL, *out = NULL;
82 EVP_PKEY_CTX *ctx = NULL;
83 char *infile = NULL, *outfile = NULL, *sigfile = NULL, *passinarg = NULL;
84 char hexdump = 0, asn1parse = 0, rev = 0, *prog;
85 unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
87 int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform =
89 int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
93 const char *inkey = NULL;
94 const char *peerkey = NULL;
95 const char *kdfalg = NULL;
97 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
99 prog = opt_init(argc, argv, pkeyutl_options);
100 while ((o = opt_next()) != OPT_EOF) {
105 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
108 opt_help(pkeyutl_options);
120 case OPT_ENGINE_IMPL:
130 passinarg = opt_arg();
133 if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform))
137 if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform))
145 e = setup_engine(opt_arg(), 0);
148 key_type = KEY_PUBKEY;
160 pkey_op = EVP_PKEY_OP_SIGN;
163 pkey_op = EVP_PKEY_OP_VERIFY;
165 case OPT_VERIFYRECOVER:
166 pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
169 pkey_op = EVP_PKEY_OP_ENCRYPT;
172 pkey_op = EVP_PKEY_OP_DECRYPT;
175 pkey_op = EVP_PKEY_OP_DERIVE;
178 pkey_op = EVP_PKEY_OP_DERIVE;
183 kdflen = atoi(opt_arg());
189 if ((pkeyopts == NULL &&
190 (pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) ||
191 sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) {
192 BIO_puts(bio_err, "out of memory\n");
198 argc = opt_num_rest();
202 if (kdfalg != NULL) {
205 } else if ((inkey == NULL)
206 || (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE)) {
209 ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
210 passinarg, pkey_op, e, engine_impl);
212 BIO_printf(bio_err, "%s: Error initializing context\n", prog);
213 ERR_print_errors(bio_err);
216 if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
217 BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
218 ERR_print_errors(bio_err);
221 if (pkeyopts != NULL) {
222 int num = sk_OPENSSL_STRING_num(pkeyopts);
225 for (i = 0; i < num; ++i) {
226 const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
228 if (pkey_ctrl_string(ctx, opt) <= 0) {
229 BIO_printf(bio_err, "%s: Can't set parameter:\n", prog);
230 ERR_print_errors(bio_err);
236 if (sigfile != NULL && (pkey_op != EVP_PKEY_OP_VERIFY)) {
238 "%s: Signature file specified for non verify\n", prog);
242 if (sigfile == NULL && (pkey_op == EVP_PKEY_OP_VERIFY)) {
244 "%s: No signature file specified for verify\n", prog);
248 if (pkey_op != EVP_PKEY_OP_DERIVE) {
249 in = bio_open_default(infile, 'r', FORMAT_BINARY);
253 out = bio_open_default(outfile, 'w', FORMAT_BINARY);
257 if (sigfile != NULL) {
258 BIO *sigbio = BIO_new_file(sigfile, "rb");
260 if (sigbio == NULL) {
261 BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
264 siglen = bio_to_mem(&sig, keysize * 10, sigbio);
267 BIO_printf(bio_err, "Error reading signature data\n");
273 /* Read the input data */
274 buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
276 BIO_printf(bio_err, "Error reading input Data\n");
282 size_t l = (size_t)buf_inlen;
283 for (i = 0; i < l / 2; i++) {
285 buf_in[i] = buf_in[l - 1 - i];
286 buf_in[l - 1 - i] = ctmp;
291 if (pkey_op == EVP_PKEY_OP_VERIFY) {
292 rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
293 buf_in, (size_t)buf_inlen);
295 BIO_puts(out, "Signature Verified Successfully\n");
298 BIO_puts(out, "Signature Verification Failure\n");
306 rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
307 buf_in, (size_t)buf_inlen);
309 if (rv > 0 && buf_outlen != 0) {
310 buf_out = app_malloc(buf_outlen, "buffer output");
311 rv = do_keyop(ctx, pkey_op,
312 buf_out, (size_t *)&buf_outlen,
313 buf_in, (size_t)buf_inlen);
316 BIO_puts(bio_err, "Public Key operation error\n");
317 ERR_print_errors(bio_err);
323 if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
324 ERR_print_errors(bio_err);
325 } else if (hexdump) {
326 BIO_dump(out, (char *)buf_out, buf_outlen);
328 BIO_write(out, buf_out, buf_outlen);
332 EVP_PKEY_CTX_free(ctx);
336 OPENSSL_free(buf_in);
337 OPENSSL_free(buf_out);
339 sk_OPENSSL_STRING_free(pkeyopts);
343 static EVP_PKEY_CTX *init_ctx(const char *kdfalg, int *pkeysize,
344 const char *keyfile, int keyform, int key_type,
345 char *passinarg, int pkey_op, ENGINE *e,
346 const int engine_impl)
348 EVP_PKEY *pkey = NULL;
349 EVP_PKEY_CTX *ctx = NULL;
354 if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
355 || (pkey_op == EVP_PKEY_OP_DERIVE))
356 && (key_type != KEY_PRIVKEY && kdfalg == NULL)) {
357 BIO_printf(bio_err, "A private key is needed for this operation\n");
360 if (!app_passwd(passinarg, NULL, &passin, NULL)) {
361 BIO_printf(bio_err, "Error getting password\n");
366 pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
370 pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "Public Key");
374 x = load_cert(keyfile, keyform, "Certificate");
376 pkey = X509_get_pubkey(x);
386 #ifndef OPENSSL_NO_ENGINE
391 if (kdfalg != NULL) {
392 int kdfnid = OBJ_sn2nid(kdfalg);
394 if (kdfnid == NID_undef) {
395 kdfnid = OBJ_ln2nid(kdfalg);
396 if (kdfnid == NID_undef)
399 ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
403 *pkeysize = EVP_PKEY_size(pkey);
404 ctx = EVP_PKEY_CTX_new(pkey, impl);
412 case EVP_PKEY_OP_SIGN:
413 rv = EVP_PKEY_sign_init(ctx);
416 case EVP_PKEY_OP_VERIFY:
417 rv = EVP_PKEY_verify_init(ctx);
420 case EVP_PKEY_OP_VERIFYRECOVER:
421 rv = EVP_PKEY_verify_recover_init(ctx);
424 case EVP_PKEY_OP_ENCRYPT:
425 rv = EVP_PKEY_encrypt_init(ctx);
428 case EVP_PKEY_OP_DECRYPT:
429 rv = EVP_PKEY_decrypt_init(ctx);
432 case EVP_PKEY_OP_DERIVE:
433 rv = EVP_PKEY_derive_init(ctx);
438 EVP_PKEY_CTX_free(ctx);
443 OPENSSL_free(passin);
448 static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file,
451 EVP_PKEY *peer = NULL;
452 ENGINE* engine = NULL;
455 if (peerform == FORMAT_ENGINE)
457 peer = load_pubkey(file, peerform, 0, NULL, engine, "Peer Key");
459 BIO_printf(bio_err, "Error reading peer key %s\n", file);
460 ERR_print_errors(bio_err);
464 ret = EVP_PKEY_derive_set_peer(ctx, peer);
468 ERR_print_errors(bio_err);
472 static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
473 unsigned char *out, size_t *poutlen,
474 const unsigned char *in, size_t inlen)
478 case EVP_PKEY_OP_VERIFYRECOVER:
479 rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
482 case EVP_PKEY_OP_SIGN:
483 rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
486 case EVP_PKEY_OP_ENCRYPT:
487 rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
490 case EVP_PKEY_OP_DECRYPT:
491 rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
494 case EVP_PKEY_OP_DERIVE:
495 rv = EVP_PKEY_derive(ctx, out, poutlen);