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/**
* Copyright (c) 2021 Paul-Louis Ageneau
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "sha.hpp"
#if RTC_ENABLE_WEBSOCKET
#if USE_GNUTLS
#include <nettle/sha1.h>
#else
#include <openssl/sha.h>
#endif
namespace rtc::impl {
namespace {
binary Sha1(const byte *data, size_t size) {
#if USE_GNUTLS
binary output(SHA1_DIGEST_SIZE);
struct sha1_ctx ctx;
sha1_init(&ctx);
sha1_update(&ctx, size, reinterpret_cast<const uint8_t *>(data));
sha1_digest(&ctx, SHA1_DIGEST_SIZE, reinterpret_cast<uint8_t *>(output.data()));
return output;
#else // USE_GNUTLS==0
binary output(SHA_DIGEST_LENGTH);
SHA_CTX ctx;
SHA1_Init(&ctx);
SHA1_Update(&ctx, data, size);
SHA1_Final(reinterpret_cast<unsigned char *>(output.data()), &ctx);
return output;
#endif
}
} // namespace
binary Sha1(const binary &input) { return Sha1(input.data(), input.size()); }
binary Sha1(const string &input) {
return Sha1(reinterpret_cast<const byte *>(input.data()), input.size());
}
} // namespace rtc::impl
#endif