2 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
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
14 #include <openssl/pem.h>
15 #include <openssl/err.h>
16 #include <openssl/evp.h>
18 typedef enum OPTION_choice {
19 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
20 OPT_IN, OPT_OUT, OPT_TEXT, OPT_NOOUT,
24 const OPTIONS pkeyparam_options[] = {
25 {"help", OPT_HELP, '-', "Display this summary"},
26 {"in", OPT_IN, '<', "Input file"},
27 {"out", OPT_OUT, '>', "Output file"},
28 {"text", OPT_TEXT, '-', "Print parameters as text"},
29 {"noout", OPT_NOOUT, '-', "Don't output encoded parameters"},
30 #ifndef OPENSSL_NO_ENGINE
31 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
33 {"check", OPT_CHECK, '-', "Check key param consistency"},
37 int pkeyparam_main(int argc, char **argv)
40 BIO *in = NULL, *out = NULL;
41 EVP_PKEY *pkey = NULL;
42 int text = 0, noout = 0, ret = 1, check = 0;
44 char *infile = NULL, *outfile = NULL, *prog;
46 prog = opt_init(argc, argv, pkeyparam_options);
47 while ((o = opt_next()) != OPT_EOF) {
52 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
55 opt_help(pkeyparam_options);
65 e = setup_engine(opt_arg(), 0);
78 argc = opt_num_rest();
82 in = bio_open_default(infile, 'r', FORMAT_PEM);
85 out = bio_open_default(outfile, 'w', FORMAT_PEM);
88 pkey = PEM_read_bio_Parameters(in, NULL);
90 BIO_printf(bio_err, "Error reading parameters\n");
91 ERR_print_errors(bio_err);
99 ctx = EVP_PKEY_CTX_new(pkey, e);
101 ERR_print_errors(bio_err);
105 r = EVP_PKEY_param_check(ctx);
108 BIO_printf(out, "Parameters are valid\n");
111 * Note: at least for RSA keys if this function returns
112 * -1, there will be no error reasons.
116 BIO_printf(out, "Parameters are invalid\n");
118 while ((err = ERR_peek_error()) != 0) {
119 BIO_printf(out, "Detailed error: %s\n",
120 ERR_reason_error_string(err));
121 ERR_get_error(); /* remove err from error stack */
124 EVP_PKEY_CTX_free(ctx);
128 PEM_write_bio_Parameters(out, pkey);
131 EVP_PKEY_print_params(out, pkey, 0, NULL);