94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/* sign_and_verify.c
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*
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* Copyright (C) 2006-2020 wolfSSL Inc.
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*
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* This file is part of wolfSSL. (formerly known as CyaSSL)
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdio.h>
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#include <wolfssl/options.h>
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//#include <wolfssl/wolfcrypt/dsa.h>
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#include <wolfssl/wolfcrypt/asn_public.h>
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#include <wolfssl/wolfcrypt/ed25519.h>
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#include <wolfssl/ssl.h>
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#define USE_CERT_BUFFERS_ED
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#include "test_keys.h"
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#ifndef HAVE_ED25519
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#error "Please build wolfSSL with the --enable-ed25519 option"
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#endif
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static int err_sys(const char* msg, int es);
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static int err_sys(const char* msg, int es)
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{
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printf("%s error = %d\n", msg, es);
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exit(-1);
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}
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int
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main(int argc, char* argv[])
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{
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int ret = -1000;
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int verify;
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ed25519_key edPublicKey;
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ed25519_key edPrivateKey;
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byte message[] = "Hi how are you?\n";
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byte sigOut[ED25519_SIG_SIZE];
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word32 sigOutSz = sizeof(sigOut);
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wolfSSL_Debugging_ON();
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/*--------------- INIT KEYS ---------------------*/
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ret = wc_ed25519_init(&edPublicKey);
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ret = wc_ed25519_init(&edPrivateKey);
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if (ret != 0) {
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printf("Error: wc_ed25519_init: %d\n", ret);
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}
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/*--------------- IMPORT KEYS FROM HEADER ---------------------*/
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ret = wc_ed25519_import_public(ed_pub_key_der_32, sizeof_ed_pub_key_der_32,
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&edPublicKey);
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if (ret != 0) err_sys("Error: ED public key import failed: ", ret);
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ret = wc_ed25519_import_private_key(ed_priv_key_der_64,
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ED25519_KEY_SIZE,
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ed_priv_key_der_64 + ED25519_KEY_SIZE,
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ED25519_KEY_SIZE, &edPrivateKey);
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if (ret != 0) err_sys("Error: ED private key import failed: ", ret);
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/*--------------- SIGN THE MESSAGE ---------------------*/
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ret = wc_ed25519_sign_msg(message, sizeof(message), sigOut, &sigOutSz,
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&edPrivateKey);
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if (ret != 0) err_sys("Error: ED sign failed: ", ret);
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/*--------------- VERIFY THE MESSAGE ---------------------*/
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ret = wc_ed25519_verify_msg(sigOut, sigOutSz, message, sizeof(message),
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&verify, &edPublicKey);
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if (ret != 0) err_sys("Error: Could not verify signature: ", ret);
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printf("Successfully validated signature\n");
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return 0;
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}
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