#ifndef ECPOINT_H
#define ECPOINT_H

// Abstract base class defining the interface of an elliptic curve point,
// plus associated operations required for implementing Pollard's rho
// algorithm for discrete logarithms.

template<class Integer>
class ECPoint
{
	public:
		// Virtual destructor
		virtual ~EllipticCurve()
		{
		}

		// Perform elliptic addition of the current point with another
		// point. For the benefit of chained expressions, the method must
		// return *this.
		virtual ECPoint& add(const ECPoint& arg) = 0;

		// Perform point doubling on the current point (add it to itself).
		// For the benefit of chained expressions, the method must return
		// *this.
		virtual ECPoint& double() = 0;

		// Multiply the point by an integer, specified using the Integer
		// class. Said Integer class doesn't need to implement the full
		// functionality of a multi-precision integer package, just the
		// ability to test bits in the binary representation of the
		// underlying integer. For the benefit of chained expressions, the
		// method must return *this.
		virtual ECPoint& multiply(Integer& arg) = 0;
};

#endif // ECPOINT_H