105 lines
4.2 KiB
C++
105 lines
4.2 KiB
C++
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/***************************************************************************
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*
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Copyright 2013 CertiVox UK Ltd. *
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*
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This file is part of CertiVox MIRACL Crypto SDK. *
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*
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The CertiVox MIRACL Crypto SDK provides developers with an *
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extensive and efficient set of cryptographic functions. *
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For further information about its features and functionalities please *
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refer to http://www.certivox.com *
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*
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* The CertiVox MIRACL Crypto SDK is free software: you can *
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redistribute it and/or modify it under the terms of the *
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GNU Affero General Public License as published by the *
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Free Software Foundation, either version 3 of the License, *
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or (at your option) any later version. *
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*
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* The CertiVox MIRACL Crypto SDK is distributed in the hope *
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that it will be useful, but WITHOUT ANY WARRANTY; without even the *
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
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See the GNU Affero General Public License for more details. *
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*
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* You should have received a copy of the GNU Affero General Public *
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License along with CertiVox MIRACL Crypto SDK. *
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If not, see <http://www.gnu.org/licenses/>. *
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*
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You can be released from the requirements of the license by purchasing *
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a commercial license. Buying such a license is mandatory as soon as you *
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develop commercial activities involving the CertiVox MIRACL Crypto SDK *
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without disclosing the source code of your own applications, or shipping *
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the CertiVox MIRACL Crypto SDK with a closed source product. *
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*
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***************************************************************************/
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/*
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* MIRACL C++ Header file ecn6.h
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*
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* AUTHOR : M. Scott
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*
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* PURPOSE : Definition of class ECn6 (Arithmetic on an Elliptic Curve,
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* mod n^6)
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*
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* NOTE : Must be used in conjunction with zzn.cpp, big.cpp and
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* zzn2.cpp and zzn6a.cpp
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*
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* WARNING: This class has been cobbled together for a specific use with
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* the MIRACL library. It is not complete, and may not work in other
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* applications
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*
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*/
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#ifndef ECN6_H
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#define ECN6_H
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#include "zzn6.h"
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// Affine Only
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class ECn6
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{
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ZZn6 x,y;
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int marker;
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public:
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ECn6() {marker=MR_EPOINT_INFINITY;}
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ECn6(const ECn6& b) {x=b.x; y=b.y; marker=b.marker; }
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ECn6& operator=(const ECn6& b)
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{x=b.x; y=b.y; marker=b.marker; return *this; }
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BOOL add(const ECn6&,ZZn6&);
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ECn6& operator+=(const ECn6&);
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ECn6& operator-=(const ECn6&);
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ECn6& operator*=(const Big&);
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void clear() {x=y=0; marker=MR_EPOINT_INFINITY;}
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BOOL iszero() const;
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void get(ZZn6&,ZZn6&) const;
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void get(ZZn6&) const;
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BOOL set(const ZZn6&,const ZZn6&); // set on the curve - returns FALSE if no such point
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BOOL set(const ZZn6&); // sets x coordinate on curve, and finds y coordinate
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friend ECn6 operator-(const ECn6&);
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friend ECn6 operator+(const ECn6&,const ECn6&);
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friend ECn6 operator-(const ECn6&,const ECn6&);
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friend BOOL operator==(const ECn6& a,const ECn6 &b)
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{return (a.x==b.x && a.y==b.y && a.marker==b.marker); }
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friend BOOL operator!=(const ECn6& a,const ECn6 &b)
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{return (a.x!=b.x || a.y!=b.y || a.marker!=b.marker); }
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friend ECn6 operator*(const Big &,const ECn6&);
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#ifndef MR_NO_STANDARD_IO
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friend ostream& operator<<(ostream&,const ECn6&);
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#endif
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~ECn6() {}
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};
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#endif
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