secp112r1.java

java写的椭圆曲线加密(ECC)算法源码

package ecc.elliptic;
import java.math.BigInteger;
public class secp112r1 implements ECParameters {
    private static final BigInteger p 
	= new BigInteger("DB7C"+"2ABF62E3"+"5E668076"+"BEAD208B", 16);
    
    private static final BigInteger a 
	= new BigInteger("DB7C"+"2ABF62E3"+"5E668076"+"BEAD2088", 16);
    
    private static final BigInteger b 
	= new BigInteger("659E"+"F8BA0439"+"16EEDE89"+"11702B22", 16);
    
    private static final BigInteger S 
	= new BigInteger("00F50B02" + "8E4D696E" + "67687561" + "51752904"
			 + "72783FB1", 16);
    
    private static final BigInteger gx
	= new BigInteger("09487239"+"995A5EE7" + "6B55F9C2" + "F098", 16);

    private static final BigInteger gy
	= new BigInteger("A89C" + "E5AF8724" + "C0A23E0E" + "0FF77500", 16);
    
    private static final BigInteger n
	= new BigInteger("DB7C" + "2ABF62E3" + "5E7628DF" + "AC6561C5", 16);
    
    public BigInteger a() {
	return a;
    }

    public BigInteger b() {
	return b;
    }

    public BigInteger p() {
	return p;
    }

    public BigInteger generatorX() {
	return gx;
    }

    public BigInteger generatorY() {
	return gy;
    }

    public BigInteger order() {
	return n;
    }

    public String toString(){
	return "secp112r1";
    }

    public static void main(String[] args) {
	System.out.println("a:  "+a);
	System.out.println("b:  "+b);
	System.out.println("p:  "+p);
	System.out.println("gx: "+gx);
	System.out.println("gy: "+gy);
	System.out.println("n:  "+n);
	System.out.println("p.toByteArray().length: "+p.toByteArray().length);
    }


}