ecoperators-methods: Elliptic curve operators

In rbch: Extraction and Analysis of Data from the Bitcoin Cash (BCH) Blockchain

Elliptic curve operators

Description

The following operations for EC points are available:

• doubleUp multiplying a point by itself

• + point addition

• leftmostBit highest bit value of an integer

• AND logical and-operator for two integers

• * multiplication of an integer scalar with an EC point

Usage

doubleUp(ecp)

## S4 method for signature 'ECPOINT'
doubleUp(ecp)

## S4 method for signature 'ECPOINT,ECPOINT'
e1 + e2

leftmostBit(x)

## S4 method for signature 'bigz'
leftmostBit(x)

AND(x, y)

## S4 method for signature 'bigz,bigz'
AND(x, y)

## S4 method for signature 'ECPOINT,bigz'
e1 * e2

## S4 method for signature 'bigz,ECPOINT'
e1 * e2

Arguments

ecp	point on elliptic curve
e1	point on elliptic curve, or integer
e2	point on elliptic curve, or integer
x	integer
y	integer

Author(s)

Bernhard Pfaff

References

https://en.bitcoin.it/wiki/Secp256k1

See Also

Other EllipticCurve: ECPARAM-class, ECPOINT-class, EcparamOrNull-class, containsPoint(), ecparam(), ecpoint(), isNull()

rbch documentation built on Sept. 28, 2024, 1:07 a.m.