112 lines
2.7 KiB
C
112 lines
2.7 KiB
C
/* ecc-key-decode.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.
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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 02110-1335, USA
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*/
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#include <wolfssl/options.h>
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#include <wolfssl/wolfcrypt/settings.h>
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#include <wolfssl/wolfcrypt/ecc.h>
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#include <wolfssl/wolfcrypt/asn.h>
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#include <wolfssl/wolfcrypt/logging.h>
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#include <wolfssl/wolfcrypt/wc_port.h>
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#include <stdio.h>
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#if defined(WOLFSSL_TEST_CERT) || defined(OPENSSL_EXTRA) || \
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defined(OPENSSL_EXTRA_X509_SMALL)
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static void check_ret(char*, int);
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int main(void)
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{
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DecodedCert decodedCert;
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FILE* file;
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byte derBuffer[4096];
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size_t bytes;
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ecc_key eccKey;
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int ret;
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word32 inOutIdx = 0;
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#ifdef DEBUG_WOLFSSL
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wolfSSL_Debugging_ON();
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#endif
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wolfCrypt_Init();
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file = fopen("../certs/client-ecc-cert.der", "rb");
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if (!file) {
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printf("Failed to open file\n");
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exit(-99);
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}
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bytes = fread(derBuffer, 1, 4096, file);
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fclose(file);
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printf("read bytes = %d\n", (int) bytes);
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if (bytes <= 0) {
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return -1;
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}
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InitDecodedCert(&decodedCert, derBuffer, (word32) bytes, 0);
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ret = ParseCert(&decodedCert, CERT_TYPE, NO_VERIFY, NULL);
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check_ret("ParseCert", ret);
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ret = wc_ecc_init(&eccKey);
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check_ret("wc_ecc_init", ret);
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printf("decodedCert.pubKeySize %d\n", decodedCert.pubKeySize);
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WOLFSSL_BUFFER(decodedCert.publicKey, decodedCert.pubKeySize);
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ret = wc_EccPublicKeyDecode(decodedCert.publicKey, &inOutIdx, &eccKey, decodedCert.pubKeySize);
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check_ret("wc_EccPublicKeyDecode", ret);
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printf("publickey size: %d\n", wc_ecc_size(&eccKey));
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FreeDecodedCert(&decodedCert);
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wolfCrypt_Cleanup();
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printf("Success\n");
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return 0;
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}
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static void check_ret(char* call, int ret)
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{
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if (ret != 0) {
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printf("call: %s\n", call);
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printf("ret = %d\n", ret);
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exit(-99);
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}
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return;
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}
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#else
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int main(void)
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{
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printf("Not compiled in: Must build wolfSSL using ./configure --enable-opensslextra or ./configure CFLAGS=-DWOLFSSL_TEST_CERT\n");
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return 0;
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}
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#endif
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