mirror of
https://github.com/inspircd/inspircd.git
synced 2025-04-01 22:00:04 -04:00
11cafc12d5
- Use #pragma once instead of include guards. - Move header files in src/modules to include/modules. - Fixed various spacing issues.
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
/*
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* InspIRCd -- Internet Relay Chat Daemon
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*
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* Copyright (C) 2010 Daniel De Graaf <danieldg@inspircd.org>
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*
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* This file is part of InspIRCd. InspIRCd is free software: you can
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* redistribute it and/or modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* 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, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "modules.h"
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class HashProvider : public DataProvider
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{
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public:
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const unsigned int out_size;
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const unsigned int block_size;
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HashProvider(Module* mod, const std::string& Name, int osiz, int bsiz)
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: DataProvider(mod, Name), out_size(osiz), block_size(bsiz) {}
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virtual std::string sum(const std::string& data) = 0;
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inline std::string hexsum(const std::string& data)
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{
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return BinToHex(sum(data));
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}
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inline std::string b64sum(const std::string& data)
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{
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return BinToBase64(sum(data), NULL, 0);
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}
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/** HMAC algorithm, RFC 2104 */
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std::string hmac(const std::string& key, const std::string& msg)
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{
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std::string hmac1, hmac2;
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std::string kbuf = key.length() > block_size ? sum(key) : key;
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kbuf.resize(block_size);
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for (size_t n = 0; n < block_size; n++)
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{
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hmac1.push_back(static_cast<char>(kbuf[n] ^ 0x5C));
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hmac2.push_back(static_cast<char>(kbuf[n] ^ 0x36));
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}
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hmac2.append(msg);
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hmac1.append(sum(hmac2));
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return sum(hmac1);
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}
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};
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