2 * Copyright 2006-2021 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
15 #include <openssl/pem.h>
16 #include <openssl/err.h>
17 #include <openssl/evp.h>
19 typedef enum OPTION_choice
{
21 OPT_IN
, OPT_OUT
, OPT_TEXT
, OPT_NOOUT
,
22 OPT_ENGINE
, OPT_CHECK
,
26 const OPTIONS pkeyparam_options
[] = {
27 OPT_SECTION("General"),
28 {"help", OPT_HELP
, '-', "Display this summary"},
29 #ifndef OPENSSL_NO_ENGINE
30 {"engine", OPT_ENGINE
, 's', "Use engine, possibly a hardware device"},
32 {"check", OPT_CHECK
, '-', "Check key param consistency"},
35 {"in", OPT_IN
, '<', "Input file"},
37 OPT_SECTION("Output"),
38 {"out", OPT_OUT
, '>', "Output file"},
39 {"text", OPT_TEXT
, '-', "Print parameters as text"},
40 {"noout", OPT_NOOUT
, '-', "Don't output encoded parameters"},
46 int pkeyparam_main(int argc
, char **argv
)
49 BIO
*in
= NULL
, *out
= NULL
;
50 EVP_PKEY
*pkey
= NULL
;
51 EVP_PKEY_CTX
*ctx
= NULL
;
52 int text
= 0, noout
= 0, ret
= EXIT_FAILURE
, check
= 0, r
;
54 char *infile
= NULL
, *outfile
= NULL
, *prog
;
56 prog
= opt_init(argc
, argv
, pkeyparam_options
);
57 while ((o
= opt_next()) != OPT_EOF
) {
62 BIO_printf(bio_err
, "%s: Use -help for summary.\n", prog
);
65 opt_help(pkeyparam_options
);
75 e
= setup_engine(opt_arg(), 0);
93 /* No extra arguments. */
94 if (!opt_check_rest_arg(NULL
))
97 in
= bio_open_default(infile
, 'r', FORMAT_PEM
);
100 out
= bio_open_default(outfile
, 'w', FORMAT_PEM
);
103 pkey
= PEM_read_bio_Parameters(in
, NULL
);
105 BIO_printf(bio_err
, "Error reading parameters\n");
106 ERR_print_errors(bio_err
);
111 ctx
= EVP_PKEY_CTX_new(pkey
, e
);
113 ERR_print_errors(bio_err
);
117 r
= EVP_PKEY_param_check(ctx
);
120 BIO_printf(out
, "Parameters are valid\n");
123 * Note: at least for RSA keys if this function returns
124 * -1, there will be no error reasons.
126 BIO_printf(bio_err
, "Parameters are invalid\n");
127 ERR_print_errors(bio_err
);
133 PEM_write_bio_Parameters(out
, pkey
);
136 EVP_PKEY_print_params(out
, pkey
, 0, NULL
);
141 EVP_PKEY_CTX_free(ctx
);