Бычков Андрей
9435ef726b
git-svn-id: svn://db.shs.com.ru/pip@102 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/*! \file picrypt.h
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* \brief Cryptographic class using lib Sodium
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*/
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/*
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PIP - Platform Independent Primitives
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Cryptographic class using lib Sodium
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Copyright (C) 2015 Andrey Bychkov work.a.b@yandex.ru
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This program 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 3 of the License, or
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(at your option) any later version.
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This program 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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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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#ifndef PICRYPT_H
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#define PICRYPT_H
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#include "pistring.h"
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class PICrypt {
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public:
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//! Construct and generate random key
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PICrypt();
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//! Set key to "key", key size must be a \a sizeKey()
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bool setKey(const PIByteArray & key);
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//! Generate and set key from keyphrase "secret"
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PIByteArray setKey(const PIString & secret);
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//! Returns current key
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PIByteArray key() {return key_;}
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//! Encrypt given data "data", result size will be increased by \a sizeCrypt()
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PIByteArray crypt(const PIByteArray & data);
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//! Decrypt given data "crypt_data"
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PIByteArray decrypt(const PIByteArray & crypt_data, bool * ok = 0);
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//! Encrypt given data "data" with key "key", result size will be increased by \a sizeCrypt()
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static PIByteArray crypt(const PIByteArray & data, const PIByteArray & key);
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//! Decrypt given data "crypt_data" with key "key"
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static PIByteArray decrypt(const PIByteArray & crypt_data, const PIByteArray & key, bool * ok = 0);
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//! Generate hash from keyphrase "secret", may be used as a key for encryption
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static PIByteArray hash(const PIString & secret);
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//! Generate random key
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static PIByteArray generateKey();
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//! Returns key size
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static int sizeKey();
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//! Returns size which be added to data size in encryption process
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static int sizeCrypt();
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private:
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PIByteArray nonce_, key_;
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};
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#endif // PICRYPT_H
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