基于国密SM2加解密（JAVA版）

package com.szca.test;

import java.math.BigInteger;
import java.security.SecureRandom;

import szca.org.bouncycastle.crypto.AsymmetricCipherKeyPair;
import szca.org.bouncycastle.crypto.engines.SM2Engine;
import szca.org.bouncycastle.crypto.generators.ECKeyPairGenerator;
import szca.org.bouncycastle.crypto.params.ECDomainParameters;
import szca.org.bouncycastle.crypto.params.ECKeyGenerationParameters;
import szca.org.bouncycastle.crypto.params.ECPrivateKeyParameters;
import szca.org.bouncycastle.crypto.params.ECPublicKeyParameters;
import szca.org.bouncycastle.crypto.params.ParametersWithRandom;
import szca.org.bouncycastle.math.ec.ECCurve;
import szca.org.bouncycastle.math.ec.ECPoint;
import szca.org.bouncycastle.util.Arrays;
import szca.org.bouncycastle.util.Strings;
import szca.org.bouncycastle.util.test.SimpleTest;

public class SM2EngineTest extends SimpleTest
{
  public String getName（）
  {
    return “SM2Engine“;
  }

  private void doEngineTestFp（）
    throws Exception
  {
    BigInteger p = new BigInteger（“FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF“ 16）;
    BigInteger a = new BigInteger（“FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFC“ 16）;
    BigInteger b = new BigInteger（“28E9FA9E9D9F5E344D5A9E4BCF6509A7F39789F515AB8F92DDBCBD414D940E93“ 16）;
    BigInteger n = new BigInteger（“FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFF7203DF6B21C6052B53BBF40939D54123“ 16）;
    BigInteger x = new BigInteger（“32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7“ 16）;
    BigInteger y = new BigInteger（“BC3736A2F4F6779C59BDCEE36B692153D0A9877CC62A474002DF32E52139F0A0“ 16）;
    ECCurve.Fp localFp = new ECCurve.Fp（p a b）;
    ECPoint localECPoint = localFp.createPoint（x y）;
    ECDomainParameters localECDomainParameters = new ECDomainParameters（localFp localECPoint n）;
    ECKeyPairGenerator localECKeyPairGenerator = new ECKeyPairGenerator（）;
    ECKeyGenerationParameters localECKeyGenerationParameters = new ECKeyGenerationParameters（localECDomainParameter