143 lines
3.7 KiB
C
143 lines
3.7 KiB
C
/*
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* Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include <string.h>
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#include "apps.h"
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#include "progs.h"
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#include <openssl/pem.h>
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#include <openssl/err.h>
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#include <openssl/evp.h>
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typedef enum OPTION_choice {
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OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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OPT_IN, OPT_OUT, OPT_TEXT, OPT_NOOUT,
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OPT_ENGINE, OPT_CHECK
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} OPTION_CHOICE;
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const OPTIONS pkeyparam_options[] = {
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{"help", OPT_HELP, '-', "Display this summary"},
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{"in", OPT_IN, '<', "Input file"},
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{"out", OPT_OUT, '>', "Output file"},
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{"text", OPT_TEXT, '-', "Print parameters as text"},
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{"noout", OPT_NOOUT, '-', "Don't output encoded parameters"},
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#ifndef OPENSSL_NO_ENGINE
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{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
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#endif
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{"check", OPT_CHECK, '-', "Check key param consistency"},
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{NULL}
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};
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int pkeyparam_main(int argc, char **argv)
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{
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ENGINE *e = NULL;
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BIO *in = NULL, *out = NULL;
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EVP_PKEY *pkey = NULL;
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int text = 0, noout = 0, ret = 1, check = 0;
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OPTION_CHOICE o;
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char *infile = NULL, *outfile = NULL, *prog;
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prog = opt_init(argc, argv, pkeyparam_options);
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while ((o = opt_next()) != OPT_EOF) {
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switch (o) {
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case OPT_EOF:
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case OPT_ERR:
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opthelp:
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BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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goto end;
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case OPT_HELP:
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opt_help(pkeyparam_options);
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ret = 0;
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goto end;
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case OPT_IN:
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infile = opt_arg();
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break;
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case OPT_OUT:
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outfile = opt_arg();
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break;
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case OPT_ENGINE:
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e = setup_engine(opt_arg(), 0);
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break;
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case OPT_TEXT:
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text = 1;
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break;
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case OPT_NOOUT:
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noout = 1;
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break;
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case OPT_CHECK:
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check = 1;
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break;
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}
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}
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argc = opt_num_rest();
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if (argc != 0)
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goto opthelp;
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in = bio_open_default(infile, 'r', FORMAT_PEM);
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if (in == NULL)
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goto end;
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out = bio_open_default(outfile, 'w', FORMAT_PEM);
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if (out == NULL)
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goto end;
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pkey = PEM_read_bio_Parameters(in, NULL);
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if (pkey == NULL) {
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BIO_printf(bio_err, "Error reading parameters\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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if (check) {
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int r;
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EVP_PKEY_CTX *ctx;
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ctx = EVP_PKEY_CTX_new(pkey, e);
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if (ctx == NULL) {
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ERR_print_errors(bio_err);
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goto end;
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}
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r = EVP_PKEY_param_check(ctx);
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if (r == 1) {
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BIO_printf(out, "Parameters are valid\n");
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} else {
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/*
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* Note: at least for RSA keys if this function returns
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* -1, there will be no error reasons.
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*/
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unsigned long err;
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BIO_printf(out, "Parameters are invalid\n");
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while ((err = ERR_peek_error()) != 0) {
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BIO_printf(out, "Detailed error: %s\n",
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ERR_reason_error_string(err));
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ERR_get_error(); /* remove err from error stack */
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}
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}
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EVP_PKEY_CTX_free(ctx);
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}
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if (!noout)
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PEM_write_bio_Parameters(out, pkey);
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if (text)
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EVP_PKEY_print_params(out, pkey, 0, NULL);
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ret = 0;
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end:
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EVP_PKEY_free(pkey);
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release_engine(e);
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BIO_free_all(out);
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BIO_free(in);
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return ret;
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}
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