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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:34:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:34:30 +0000 |
commit | 4fc2f55f761d71aae1f145d5aa94ba929cc39676 (patch) | |
tree | 5c1e1db3b46dd4edbe11f612d93cb94b96891ce3 /sodcrypto.hh | |
parent | Initial commit. (diff) | |
download | dnsdist-4fc2f55f761d71aae1f145d5aa94ba929cc39676.tar.xz dnsdist-4fc2f55f761d71aae1f145d5aa94ba929cc39676.zip |
Adding upstream version 1.7.3.upstream/1.7.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sodcrypto.hh')
-rw-r--r-- | sodcrypto.hh | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/sodcrypto.hh b/sodcrypto.hh new file mode 100644 index 0000000..ca35631 --- /dev/null +++ b/sodcrypto.hh @@ -0,0 +1,78 @@ +/* + * This file is part of PowerDNS or dnsdist. + * Copyright -- PowerDNS.COM B.V. and its contributors + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * In addition, for the avoidance of any doubt, permission is granted to + * link this program with OpenSSL and to (re)distribute the binaries + * produced as the result of such linking. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ +#pragma once +#include "config.h" +#include <string> +#include <stdint.h> + +#include <arpa/inet.h> + +#ifndef HAVE_LIBSODIUM +struct SodiumNonce +{ + void init(){}; + void merge(const SodiumNonce& lower, const SodiumNonce& higher) {}; + void increment(){}; + unsigned char value[1]{0}; +}; +#else +#include <sodium.h> + +struct SodiumNonce +{ + SodiumNonce() + { + memset(&value, 0, sizeof(value)); + } + + void init() + { + randombytes_buf(value, sizeof value); + } + + void merge(const SodiumNonce& lower, const SodiumNonce& higher) + { + static const size_t halfSize = (sizeof value) / 2; + memcpy(value, lower.value, halfSize); + memcpy(value + halfSize, higher.value + halfSize, halfSize); + } + + void increment() + { + uint32_t* p = (uint32_t*)value; + uint32_t count=htonl(*p); + *p=ntohl(++count); + } + + string toString() const + { + return string((const char*)value, crypto_secretbox_NONCEBYTES); + } + + unsigned char value[crypto_secretbox_NONCEBYTES]; +}; +#endif +std::string newKeypair(); +std::string sodEncryptSym(const std::string& msg, const std::string& key, SodiumNonce&); +std::string sodDecryptSym(const std::string& msg, const std::string& key, SodiumNonce&); +std::string newKey(); +bool sodIsValidKey(const std::string& key); |