signatureGenAndVerification.rb

def SignatureGeneration(genPoint,randomNumber,hashOfThingToSign)
    q = EccMultiply(genPoint,randomNumber)
    xRandSignPoint = q[0][0]
    yRandSignPoint = q[0][1]
    r = xRandSignPoint % $numberOfPointsInFeild;
    s = ((hashOfThingToSign + (r*hextodec($privKey)))*(modInverse(randomNumber,$numberOfPointsInFeild))) % $numberOfPointsInFeild
    return [r,s]
end

def SignatureVerification(s,r,hashOfThingToSign,publicKey)
    w = modInverse(s,$numberOfPointsInFeild)
    point1 = EccMultiply($point,((hashOfThingToSign * w) % $numberOfPointsInFeild))
    point2 = EccMultiply(publicKey,((r*w) % $numberOfPointsInFeild))
    q  = ECadd(point1[0],point2[0])
    x = q[0]
    y = q[1]
    if(x === r)
        return true
    else
        return false
    end
end