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i2p.i2p/apps/enclave/src/bigint.hpp

59 lines
2.3 KiB
C++

/*
* Copyright (c) 2004, Matthew P. Cashdollar <mpc@innographx.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the author nor the names of any contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef BIGINT_HPP
#define BIGINT_HPP
class Bigint {
public:
Bigint(void) { init(); }
Bigint(const Bigint& bigint);
Bigint(const uchar_t* data, size_t size);
Bigint(uint16_t i);
Bigint(uint32_t i);
~Bigint(void) { mp_clear(&mpi); }
uchar_t* export_uraw(size_t& size) const;
const mp_int& get_mp_int(void) const { return mpi; }
void import_uraw(const uchar_t* data, size_t size);
bool operator<(const Bigint& rhs) const;
Bigint& operator=(const Bigint& rhs);
bool operator==(const Bigint& rhs) const;
bool operator>(const Bigint& rhs) const;
void xor(const Bigint& rhs, Bigint& result) const;
protected:
mp_int mpi;
private:
void copyover_mp_int(const mp_int& i);
void init(void);
};
#endif // BIGINT_HPP