package com.encryption;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
public class Test {
/**
* @param args
*/
public static void main(String[] args) {
try {
/*
* 生成DES密钥
*/
SecretKey key = KeyGenerator.getInstance("DES").generateKey();
System.out.println("原始DES密钥：" + new String(key.getEncoded()));
/*
* 利用RSA公钥加密DES密钥
*/
RSAEncrypter encrypt = new RSAEncrypter();
/*
* KeyPair keyPair = encrypt.generateKey(); RSAPrivateKey privateKey
* = (RSAPrivateKey) keyPair.getPrivate(); RSAPublicKey publicKey =
* (RSAPublicKey) keyPair.getPublic();
*/
String publicKeyPath = "D:/hdfs/29/publicKey";
RSAPublicKey pubKey = (RSAPublicKey) encrypt.loadKey(publicKeyPath,
1);
byte[] encryptDESKey = encrypt.encrypt(pubKey, key.getEncoded());
System.out.println("加密后的DES密钥：" + new String(encryptDESKey));
/*
* 利用RSA私钥解密DES密钥
*/
RSAEncrypter encrypt1 = new RSAEncrypter();
String privateKeyPath = "D:/hdfs/29/privateKey";
RSAPrivateKey priKey = (RSAPrivateKey) encrypt1.loadKey(
privateKeyPath, 0);
byte[] originDESKey = encrypt1.decrypt(priKey, encryptDESKey);
System.out.println("解密后的DES密钥：" + new String(originDESKey));
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}