2 * Copyright 2006-2016 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
12 #include <openssl/err.h>
13 #include <openssl/pem.h>
14 #include <openssl/evp.h>
21 static EVP_PKEY_CTX
*init_ctx(const char *kdfalg
, int *pkeysize
,
22 const char *keyfile
, int keyform
, int key_type
,
23 char *passinarg
, int pkey_op
, ENGINE
*e
,
26 static int setup_peer(EVP_PKEY_CTX
*ctx
, int peerform
, const char *file
,
29 static int do_keyop(EVP_PKEY_CTX
*ctx
, int pkey_op
,
30 unsigned char *out
, size_t *poutlen
,
31 const unsigned char *in
, size_t inlen
);
33 typedef enum OPTION_choice
{
34 OPT_ERR
= -1, OPT_EOF
= 0, OPT_HELP
,
35 OPT_ENGINE
, OPT_ENGINE_IMPL
, OPT_IN
, OPT_OUT
,
36 OPT_PUBIN
, OPT_CERTIN
, OPT_ASN1PARSE
, OPT_HEXDUMP
, OPT_SIGN
,
37 OPT_VERIFY
, OPT_VERIFYRECOVER
, OPT_REV
, OPT_ENCRYPT
, OPT_DECRYPT
,
38 OPT_DERIVE
, OPT_SIGFILE
, OPT_INKEY
, OPT_PEERKEY
, OPT_PASSIN
,
39 OPT_PEERFORM
, OPT_KEYFORM
, OPT_PKEYOPT
, OPT_KDF
, OPT_KDFLEN
42 const OPTIONS pkeyutl_options
[] = {
43 {"help", OPT_HELP
, '-', "Display this summary"},
44 {"in", OPT_IN
, '<', "Input file - default stdin"},
45 {"out", OPT_OUT
, '>', "Output file - default stdout"},
46 {"pubin", OPT_PUBIN
, '-', "Input is a public key"},
47 {"certin", OPT_CERTIN
, '-', "Input is a cert with a public key"},
48 {"asn1parse", OPT_ASN1PARSE
, '-', "asn1parse the output data"},
49 {"hexdump", OPT_HEXDUMP
, '-', "Hex dump output"},
50 {"sign", OPT_SIGN
, '-', "Sign input data with private key"},
51 {"verify", OPT_VERIFY
, '-', "Verify with public key"},
52 {"verifyrecover", OPT_VERIFYRECOVER
, '-',
53 "Verify with public key, recover original data"},
54 {"rev", OPT_REV
, '-', "Reverse the order of the input buffer"},
55 {"encrypt", OPT_ENCRYPT
, '-', "Encrypt input data with public key"},
56 {"decrypt", OPT_DECRYPT
, '-', "Decrypt input data with private key"},
57 {"derive", OPT_DERIVE
, '-', "Derive shared secret"},
58 {"kdf", OPT_KDF
, 's', "Use KDF algorithm"},
59 {"kdflen", OPT_KDFLEN
, 'p', "KDF algorithm output length"},
60 {"sigfile", OPT_SIGFILE
, '<', "Signature file (verify operation only)"},
61 {"inkey", OPT_INKEY
, 's', "Input private key file"},
62 {"peerkey", OPT_PEERKEY
, 's', "Peer key file used in key derivation"},
63 {"passin", OPT_PASSIN
, 's', "Input file pass phrase source"},
64 {"peerform", OPT_PEERFORM
, 'E', "Peer key format - default PEM"},
65 {"keyform", OPT_KEYFORM
, 'E', "Private key format - default PEM"},
66 {"pkeyopt", OPT_PKEYOPT
, 's', "Public key options as opt:value"},
67 #ifndef OPENSSL_NO_ENGINE
68 {"engine", OPT_ENGINE
, 's', "Use engine, possibly a hardware device"},
69 {"engine_impl", OPT_ENGINE_IMPL
, '-',
70 "Also use engine given by -engine for crypto operations"},
75 int pkeyutl_main(int argc
, char **argv
)
77 BIO
*in
= NULL
, *out
= NULL
;
79 EVP_PKEY_CTX
*ctx
= NULL
;
80 char *infile
= NULL
, *outfile
= NULL
, *sigfile
= NULL
, *passinarg
= NULL
;
81 char hexdump
= 0, asn1parse
= 0, rev
= 0, *prog
;
82 unsigned char *buf_in
= NULL
, *buf_out
= NULL
, *sig
= NULL
;
84 int buf_inlen
= 0, siglen
= -1, keyform
= FORMAT_PEM
, peerform
=
86 int keysize
= -1, pkey_op
= EVP_PKEY_OP_SIGN
, key_type
= KEY_PRIVKEY
;
90 const char *inkey
= NULL
;
91 const char *peerkey
= NULL
;
92 const char *kdfalg
= NULL
;
94 STACK_OF(OPENSSL_STRING
) *pkeyopts
= NULL
;
96 prog
= opt_init(argc
, argv
, pkeyutl_options
);
97 while ((o
= opt_next()) != OPT_EOF
) {
102 BIO_printf(bio_err
, "%s: Use -help for summary.\n", prog
);
105 opt_help(pkeyutl_options
);
117 case OPT_ENGINE_IMPL
:
127 passinarg
= opt_arg();
130 if (!opt_format(opt_arg(), OPT_FMT_PDE
, &peerform
))
134 if (!opt_format(opt_arg(), OPT_FMT_PDE
, &keyform
))
138 e
= setup_engine(opt_arg(), 0);
141 key_type
= KEY_PUBKEY
;
153 pkey_op
= EVP_PKEY_OP_SIGN
;
156 pkey_op
= EVP_PKEY_OP_VERIFY
;
158 case OPT_VERIFYRECOVER
:
159 pkey_op
= EVP_PKEY_OP_VERIFYRECOVER
;
162 pkey_op
= EVP_PKEY_OP_ENCRYPT
;
165 pkey_op
= EVP_PKEY_OP_DECRYPT
;
168 pkey_op
= EVP_PKEY_OP_DERIVE
;
171 pkey_op
= EVP_PKEY_OP_DERIVE
;
176 kdflen
= atoi(opt_arg());
182 if ((pkeyopts
== NULL
&&
183 (pkeyopts
= sk_OPENSSL_STRING_new_null()) == NULL
) ||
184 sk_OPENSSL_STRING_push(pkeyopts
, opt_arg()) == 0) {
185 BIO_puts(bio_err
, "out of memory\n");
191 argc
= opt_num_rest();
195 if (kdfalg
!= NULL
) {
198 } else if ((inkey
== NULL
)
199 || (peerkey
!= NULL
&& pkey_op
!= EVP_PKEY_OP_DERIVE
)) {
202 ctx
= init_ctx(kdfalg
, &keysize
, inkey
, keyform
, key_type
,
203 passinarg
, pkey_op
, e
, engine_impl
);
205 BIO_printf(bio_err
, "%s: Error initializing context\n", prog
);
206 ERR_print_errors(bio_err
);
209 if (peerkey
!= NULL
&& !setup_peer(ctx
, peerform
, peerkey
, e
)) {
210 BIO_printf(bio_err
, "%s: Error setting up peer key\n", prog
);
211 ERR_print_errors(bio_err
);
214 if (pkeyopts
!= NULL
) {
215 int num
= sk_OPENSSL_STRING_num(pkeyopts
);
218 for (i
= 0; i
< num
; ++i
) {
219 const char *opt
= sk_OPENSSL_STRING_value(pkeyopts
, i
);
221 if (pkey_ctrl_string(ctx
, opt
) <= 0) {
222 BIO_printf(bio_err
, "%s: Can't set parameter:\n", prog
);
223 ERR_print_errors(bio_err
);
229 if (sigfile
&& (pkey_op
!= EVP_PKEY_OP_VERIFY
)) {
231 "%s: Signature file specified for non verify\n", prog
);
235 if (!sigfile
&& (pkey_op
== EVP_PKEY_OP_VERIFY
)) {
237 "%s: No signature file specified for verify\n", prog
);
241 /* FIXME: seed PRNG only if needed */
242 app_RAND_load_file(NULL
, 0);
244 if (pkey_op
!= EVP_PKEY_OP_DERIVE
) {
245 in
= bio_open_default(infile
, 'r', FORMAT_BINARY
);
249 out
= bio_open_default(outfile
, 'w', FORMAT_BINARY
);
254 BIO
*sigbio
= BIO_new_file(sigfile
, "rb");
256 BIO_printf(bio_err
, "Can't open signature file %s\n", sigfile
);
259 siglen
= bio_to_mem(&sig
, keysize
* 10, sigbio
);
262 BIO_printf(bio_err
, "Error reading signature data\n");
268 /* Read the input data */
269 buf_inlen
= bio_to_mem(&buf_in
, keysize
* 10, in
);
271 BIO_printf(bio_err
, "Error reading input Data\n");
277 size_t l
= (size_t)buf_inlen
;
278 for (i
= 0; i
< l
/ 2; i
++) {
280 buf_in
[i
] = buf_in
[l
- 1 - i
];
281 buf_in
[l
- 1 - i
] = ctmp
;
286 if (pkey_op
== EVP_PKEY_OP_VERIFY
) {
287 rv
= EVP_PKEY_verify(ctx
, sig
, (size_t)siglen
,
288 buf_in
, (size_t)buf_inlen
);
290 BIO_puts(out
, "Signature Verified Successfully\n");
293 BIO_puts(out
, "Signature Verification Failure\n");
300 rv
= do_keyop(ctx
, pkey_op
, NULL
, (size_t *)&buf_outlen
,
301 buf_in
, (size_t)buf_inlen
);
303 if (rv
> 0 && buf_outlen
!= 0) {
304 buf_out
= app_malloc(buf_outlen
, "buffer output");
305 rv
= do_keyop(ctx
, pkey_op
,
306 buf_out
, (size_t *)&buf_outlen
,
307 buf_in
, (size_t)buf_inlen
);
310 BIO_puts(bio_err
, "Public Key operation error\n");
311 ERR_print_errors(bio_err
);
317 if (!ASN1_parse_dump(out
, buf_out
, buf_outlen
, 1, -1))
318 ERR_print_errors(bio_err
);
320 BIO_dump(out
, (char *)buf_out
, buf_outlen
);
322 BIO_write(out
, buf_out
, buf_outlen
);
325 EVP_PKEY_CTX_free(ctx
);
328 OPENSSL_free(buf_in
);
329 OPENSSL_free(buf_out
);
331 sk_OPENSSL_STRING_free(pkeyopts
);
335 static EVP_PKEY_CTX
*init_ctx(const char *kdfalg
, int *pkeysize
,
336 const char *keyfile
, int keyform
, int key_type
,
337 char *passinarg
, int pkey_op
, ENGINE
*e
,
338 const int engine_impl
)
340 EVP_PKEY
*pkey
= NULL
;
341 EVP_PKEY_CTX
*ctx
= NULL
;
346 if (((pkey_op
== EVP_PKEY_OP_SIGN
) || (pkey_op
== EVP_PKEY_OP_DECRYPT
)
347 || (pkey_op
== EVP_PKEY_OP_DERIVE
))
348 && (key_type
!= KEY_PRIVKEY
&& kdfalg
== NULL
)) {
349 BIO_printf(bio_err
, "A private key is needed for this operation\n");
352 if (!app_passwd(passinarg
, NULL
, &passin
, NULL
)) {
353 BIO_printf(bio_err
, "Error getting password\n");
358 pkey
= load_key(keyfile
, keyform
, 0, passin
, e
, "Private Key");
362 pkey
= load_pubkey(keyfile
, keyform
, 0, NULL
, e
, "Public Key");
366 x
= load_cert(keyfile
, keyform
, "Certificate");
368 pkey
= X509_get_pubkey(x
);
378 #ifndef OPENSSL_NO_ENGINE
384 int kdfnid
= OBJ_sn2nid(kdfalg
);
385 if (kdfnid
== NID_undef
)
387 ctx
= EVP_PKEY_CTX_new_id(kdfnid
, impl
);
391 *pkeysize
= EVP_PKEY_size(pkey
);
392 ctx
= EVP_PKEY_CTX_new(pkey
, impl
);
400 case EVP_PKEY_OP_SIGN
:
401 rv
= EVP_PKEY_sign_init(ctx
);
404 case EVP_PKEY_OP_VERIFY
:
405 rv
= EVP_PKEY_verify_init(ctx
);
408 case EVP_PKEY_OP_VERIFYRECOVER
:
409 rv
= EVP_PKEY_verify_recover_init(ctx
);
412 case EVP_PKEY_OP_ENCRYPT
:
413 rv
= EVP_PKEY_encrypt_init(ctx
);
416 case EVP_PKEY_OP_DECRYPT
:
417 rv
= EVP_PKEY_decrypt_init(ctx
);
420 case EVP_PKEY_OP_DERIVE
:
421 rv
= EVP_PKEY_derive_init(ctx
);
426 EVP_PKEY_CTX_free(ctx
);
431 OPENSSL_free(passin
);
436 static int setup_peer(EVP_PKEY_CTX
*ctx
, int peerform
, const char *file
,
439 EVP_PKEY
*peer
= NULL
;
440 ENGINE
* engine
= NULL
;
443 if (peerform
== FORMAT_ENGINE
)
445 peer
= load_pubkey(file
, peerform
, 0, NULL
, engine
, "Peer Key");
447 BIO_printf(bio_err
, "Error reading peer key %s\n", file
);
448 ERR_print_errors(bio_err
);
452 ret
= EVP_PKEY_derive_set_peer(ctx
, peer
);
456 ERR_print_errors(bio_err
);
460 static int do_keyop(EVP_PKEY_CTX
*ctx
, int pkey_op
,
461 unsigned char *out
, size_t *poutlen
,
462 const unsigned char *in
, size_t inlen
)
466 case EVP_PKEY_OP_VERIFYRECOVER
:
467 rv
= EVP_PKEY_verify_recover(ctx
, out
, poutlen
, in
, inlen
);
470 case EVP_PKEY_OP_SIGN
:
471 rv
= EVP_PKEY_sign(ctx
, out
, poutlen
, in
, inlen
);
474 case EVP_PKEY_OP_ENCRYPT
:
475 rv
= EVP_PKEY_encrypt(ctx
, out
, poutlen
, in
, inlen
);
478 case EVP_PKEY_OP_DECRYPT
:
479 rv
= EVP_PKEY_decrypt(ctx
, out
, poutlen
, in
, inlen
);
482 case EVP_PKEY_OP_DERIVE
:
483 rv
= EVP_PKEY_derive(ctx
, out
, poutlen
);