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authordaniel0916 <theschokolps@gmail.com>2014-04-07 20:12:17 +0200
committerdaniel0916 <theschokolps@gmail.com>2014-04-07 20:12:17 +0200
commit2e9754ac1cf0537c12ab7974cf55c451c0724540 (patch)
tree713c5b8c8f22f77893b30b9c8cefca4a7c491483 /lib/cryptopp/ec2n.h
parentFixed merge conflict (diff)
parentFixed some more minor issues with the redstone simulator. (diff)
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Diffstat (limited to 'lib/cryptopp/ec2n.h')
-rw-r--r--lib/cryptopp/ec2n.h113
1 files changed, 0 insertions, 113 deletions
diff --git a/lib/cryptopp/ec2n.h b/lib/cryptopp/ec2n.h
deleted file mode 100644
index ae4007cd6..000000000
--- a/lib/cryptopp/ec2n.h
+++ /dev/null
@@ -1,113 +0,0 @@
-#ifndef CRYPTOPP_EC2N_H
-#define CRYPTOPP_EC2N_H
-
-#include "gf2n.h"
-#include "eprecomp.h"
-#include "smartptr.h"
-#include "pubkey.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-//! Elliptic Curve Point
-struct CRYPTOPP_DLL EC2NPoint
-{
- EC2NPoint() : identity(true) {}
- EC2NPoint(const PolynomialMod2 &x, const PolynomialMod2 &y)
- : identity(false), x(x), y(y) {}
-
- bool operator==(const EC2NPoint &t) const
- {return (identity && t.identity) || (!identity && !t.identity && x==t.x && y==t.y);}
- bool operator< (const EC2NPoint &t) const
- {return identity ? !t.identity : (!t.identity && (x<t.x || (x==t.x && y<t.y)));}
-
- bool identity;
- PolynomialMod2 x, y;
-};
-
-CRYPTOPP_DLL_TEMPLATE_CLASS AbstractGroup<EC2NPoint>;
-
-//! Elliptic Curve over GF(2^n)
-class CRYPTOPP_DLL EC2N : public AbstractGroup<EC2NPoint>
-{
-public:
- typedef GF2NP Field;
- typedef Field::Element FieldElement;
- typedef EC2NPoint Point;
-
- EC2N() {}
- EC2N(const Field &field, const Field::Element &a, const Field::Element &b)
- : m_field(field), m_a(a), m_b(b) {}
- // construct from BER encoded parameters
- // this constructor will decode and extract the the fields fieldID and curve of the sequence ECParameters
- EC2N(BufferedTransformation &bt);
-
- // encode the fields fieldID and curve of the sequence ECParameters
- void DEREncode(BufferedTransformation &bt) const;
-
- bool Equal(const Point &P, const Point &Q) const;
- const Point& Identity() const;
- const Point& Inverse(const Point &P) const;
- bool InversionIsFast() const {return true;}
- const Point& Add(const Point &P, const Point &Q) const;
- const Point& Double(const Point &P) const;
-
- Point Multiply(const Integer &k, const Point &P) const
- {return ScalarMultiply(P, k);}
- Point CascadeMultiply(const Integer &k1, const Point &P, const Integer &k2, const Point &Q) const
- {return CascadeScalarMultiply(P, k1, Q, k2);}
-
- bool ValidateParameters(RandomNumberGenerator &rng, unsigned int level=3) const;
- bool VerifyPoint(const Point &P) const;
-
- unsigned int EncodedPointSize(bool compressed = false) const
- {return 1 + (compressed?1:2)*m_field->MaxElementByteLength();}
- // returns false if point is compressed and not valid (doesn't check if uncompressed)
- bool DecodePoint(Point &P, BufferedTransformation &bt, size_t len) const;
- bool DecodePoint(Point &P, const byte *encodedPoint, size_t len) const;
- void EncodePoint(byte *encodedPoint, const Point &P, bool compressed) const;
- void EncodePoint(BufferedTransformation &bt, const Point &P, bool compressed) const;
-
- Point BERDecodePoint(BufferedTransformation &bt) const;
- void DEREncodePoint(BufferedTransformation &bt, const Point &P, bool compressed) const;
-
- Integer FieldSize() const {return Integer::Power2(m_field->MaxElementBitLength());}
- const Field & GetField() const {return *m_field;}
- const FieldElement & GetA() const {return m_a;}
- const FieldElement & GetB() const {return m_b;}
-
- bool operator==(const EC2N &rhs) const
- {return GetField() == rhs.GetField() && m_a == rhs.m_a && m_b == rhs.m_b;}
-
-private:
- clonable_ptr<Field> m_field;
- FieldElement m_a, m_b;
- mutable Point m_R;
-};
-
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_FixedBasePrecomputationImpl<EC2N::Point>;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_GroupPrecomputation<EC2N::Point>;
-
-template <class T> class EcPrecomputation;
-
-//! EC2N precomputation
-template<> class EcPrecomputation<EC2N> : public DL_GroupPrecomputation<EC2N::Point>
-{
-public:
- typedef EC2N EllipticCurve;
-
- // DL_GroupPrecomputation
- const AbstractGroup<Element> & GetGroup() const {return m_ec;}
- Element BERDecodeElement(BufferedTransformation &bt) const {return m_ec.BERDecodePoint(bt);}
- void DEREncodeElement(BufferedTransformation &bt, const Element &v) const {m_ec.DEREncodePoint(bt, v, false);}
-
- // non-inherited
- void SetCurve(const EC2N &ec) {m_ec = ec;}
- const EC2N & GetCurve() const {return m_ec;}
-
-private:
- EC2N m_ec;
-};
-
-NAMESPACE_END
-
-#endif