AES加密测试原码

AES加密调试原码，有利于理解app等http请求加密签名，进行安全测试

AES加密方式一：

package oscar.jmeterTest;
import java.security.SecureRandom;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;

public class AESTest {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        String content = "123456";
        String password = "1234567890abcefg";

        byte[] encodeMessage = AESJDKEncode(content,password);
        System.out.println(convertByteToHexString(encodeMessage));
        byte[] decodeMessage = AESJDKDecode(encodeMessage,password);
        System.out.println(new String(decodeMessage));

    }

    public static String convertByteToHexString(byte[] bytes){
        String result = "";

        for(int i=0;i< bytes.length;i++){
            int temp = bytes[i] & 0xff;
            String tempHex = Integer.toHexString(temp);

            if(tempHex.length() <2){
                result +="0" + tempHex;
            } else {
                result +=tempHex;
            }
        }

        return result;      

    }

    public static byte[] AESJDKEncode(String messgae,String password){
        try{
            KeyGenerator kgen = KeyGenerator.getInstance("AES");
            kgen.init(128,new SecureRandom(password.getBytes()));
            SecretKey secretKey = kgen.generateKey();
            byte[] enCodeFormat =secretKey.getEncoded();
            SecretKey key = new SecretKeySpec(enCodeFormat,"AES");
            Cipher cipher = Cipher.getInstance("AES");
            cipher.init(Cipher.ENCRYPT_MODE,key);
            byte[] result = cipher.doFinal(messgae.getBytes());

            return result;      

            }catch(Exception e){
                e.printStackTrace();
            }
        return null;
    }

    public static byte[] AESJDKDecode(byte[] message,String password){
        try{
            KeyGenerator kgen = KeyGenerator.getInstance("AES");
            kgen.init(128,new SecureRandom(password.getBytes()));
            SecretKey secretKey = kgen.generateKey();
            byte[] enCodeFormat =secretKey.getEncoded();
            SecretKey key = new SecretKeySpec(enCodeFormat,"AES");
            Cipher cipher = Cipher.getInstance("AES");
            cipher.init(Cipher.DECRYPT_MODE,key);
            byte[] result = cipher.doFinal(message);

            return result;      

            }catch(Exception e){
                e.printStackTrace();
            }
        return null;
    }

}

AES加密方式二：AES/CBC/PKCS5Padding 有多种模式，AES/ECB/PKCS5Padding
AES/ECB/NoPadding
AES/CBC/NoPadding

 package oscar.jmeterTest;

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

/**
 * AES 是一种可逆加密算法，对用户的敏感信息加密处理 对原始数据进行AES加密后，在进行Base64编码转化；
 */
public class AESOperator{
    /*
     * 加密用的Key 可以用26个字母和数字组成 此处使用AES-128-CBC加密模式，key需要为16位。
     */
    private String sKey = "0123456789abcdef";
    private String ivParameter = "0123456789abcdef";
    private static AESOperator instance = null;


    public static AESOperator getInstance() {
        if (instance == null)
            instance = new AESOperator();
        return instance;
    }

    // 加密
    public String encrypt(String sSrc) throws Exception {
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        byte[] raw = sKey.getBytes();
        SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
        IvParameterSpec iv = new IvParameterSpec(ivParameter.getBytes());//使用CBC模式，需要一个向量iv，可增加加密算法的强度
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
        byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
        return new BASE64Encoder().encode(encrypted);//此处使用BASE64做转码。
}

    // 解密
    @SuppressWarnings("restriction")
    public String decrypt(String sSrc) throws Exception {
        try {
            byte[] raw = sKey.getBytes("ASCII");
            SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
            IvParameterSpec iv = new IvParameterSpec(ivParameter.getBytes());
            cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
            byte[] encrypted1 = new BASE64Decoder().decodeBuffer(sSrc);//先用base64解密
            byte[] original = cipher.doFinal(encrypted1);
            String originalString = new String(original,"utf-8");
            return originalString;
            } catch (Exception ex) {
                return null;
            }
}

    public static void main(String[] args) throws Exception {
// 需要加密的字串
        String cSrc = "123456";
        System.out.println(cSrc);
        // 加密
        long lStart = System.currentTimeMillis();
        String enString = AESOperator.getInstance().encrypt(cSrc);
        System.out.println("加密后的字串是：" + enString);

        long lUseTime = System.currentTimeMillis()-lStart;
        System.out.println("加密耗时：" + lUseTime + "毫秒");
        // 解密
        lStart = System.currentTimeMillis();
        String DeString = AESOperator.getInstance().decrypt(enString);

        System.out.println("解密后的字串是：" + DeString);
        lUseTime = System.currentTimeMillis()-lStart;
        System.out.println("解密耗时：" + lUseTime + "毫秒");
}
}

===========================================`
AES/ECB/PKCS5Padding：加密方式

 public static Object AESEncrypt(String sSrc, String sKey) {
        try{
            if (sKey == null) {
                System.out.print("Key为空");
                throw new Exception();
            }
            // 判断Key是否为16位
            if (sKey.length() != 16) {
                System.out.print("Key长度不等于16位");
                throw new Exception();
            }
            byte[] raw = sKey.getBytes("utf-8");
            SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
            cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
            byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
            return new Base64().encodeToString(encrypted);
        }catch (Exception e) {
            //e.printStackTrace();
            return null;
        }
    }


    /**
     * AES 解密
     * @param sSrc
     * @param sKey
     * @return
     */
    public static Object AESDecrypt(String sSrc, String sKey){
        try {
            if (sKey == null) {
                return null;
             }
             // 判断Key是否为16位
             if (sKey.length() != 16) {
                return  null;

             }
            byte[] raw = sKey.getBytes("UTF-8");
            SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
            cipher.init(Cipher.DECRYPT_MODE, skeySpec);
            byte[] encrypted1 = new Base64().decode(sSrc);//先用base64解密
            byte[] original = cipher.doFinal(encrypted1);
            String originalString = new String(original,"utf-8");
            return originalString;
        } catch (Exception ex) {
            ex.printStackTrace();
            return null;
        }
    }
}