package org.pzone.crypto;

import org.bouncycastle.math.ec.ECPoint;
import org.pzone.crypto.SM2;
import org.pzone.crypto.SM2KeyPair;

import test.java.org.pzone.crypto.ComFn;

import java.math.BigInteger;

public class TestSM2 {

    public static void main(String[] args) {
        SM2 x = new SM2();
        x.setDebug(true);
        /*
        SM2KeyPair keys = x.generateKeyPair();
        ECPoint pubKey = keys.getPublicKey();
        BigInteger privKey = keys.getPrivateKey();
        x.exportPrivateKey(privKey, "pri_key.ksm");
        x.exportPublicKey(pubKey, "pub_key.ksm");
        */
        BigInteger privKey = x.importPrivateKey("pri_key.ksm");
        ECPoint pubKey = x.importPublicKey("pub_key.ksm");
        
        byte[] pubk = pubKey.getEncoded(false);
        System.err.println(pubk.length + " pub_Key:" + ComFn.bytesToHexString(pubk, pubk.length));
        
        byte[] kx = pubKey.getXCoord().getEncoded();
        System.err.println(kx.length + " pubKeyX:" + ComFn.bytesToHexString(kx, kx.length));
        byte[] ky = pubKey.getYCoord().getEncoded();
        System.err.println(ky.length + " pubKeyY:" + ComFn.bytesToHexString(ky, ky.length));
        System.err.println("pubKey:" + pubKey.toString());
        
        byte[] pk = privKey.toByteArray();
        if (pk[0] == 0) {
            byte[] tmp = new byte[pk.length - 1];
            System.arraycopy(pk, 1, tmp, 0, tmp.length);
            pk = tmp;
        }
        System.err.println(pk.length + " privKey:" + ComFn.bytesToHexString(pk, pk.length));
        System.err.println(privKey.toString());
        for(int n=0; n<1; n++) {
        byte[] data = x.encrypt(
        		"公司名称：福光电子\n"
        		+ "项目名称：BTS监控平台V1.23\n"
        		+ "lisence类型：永久可用", pubKey);
        //System.out.println("encrypt len: " + data.length);
        //System.out.println("encrypt: " + ComFn.bytesToHexString(data, data.length));
        String origin = x.decrypt(data, privKey);
        //System.out.println("decrypt: " + origin);
        //System.out.println("decrypt len: " + origin.length());
        }
    }
}