java實現AES方式加密
阿新 • • 發佈：2018-04-03
AES加密import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
public class AESUtil {
private static final String IV_STRING = "sdf4ddfsFD86Vdf2";
private static final String encoding = "UTF-8";
public static String encryptAES(String content, String key)
throws InvalidKeyException, NoSuchAlgorithmException,
NoSuchPaddingException, UnsupportedEncodingException,
InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
byte[] byteContent = content.getBytes(encoding);
// 註意，為了能與 iOS 統一
// 這裏的 key 不可以使用 KeyGenerator、SecureRandom、SecretKey 生成
byte[] enCodeFormat = key.getBytes(encoding);
SecretKeySpec secretKeySpec = new SecretKeySpec(enCodeFormat, "AES");
byte[] initParam = IV_STRING.getBytes(encoding);
IvParameterSpec ivParameterSpec = new IvParameterSpec(initParam);
// 指定加密的算法、工作模式和填充方式
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec, ivParameterSpec);
byte[] encryptedBytes = cipher.doFinal(byteContent);
// 同樣對加密後數據進行 base64 編碼
String base64 = new Base64().encodeToString(encryptedBytes);
//進行url編碼 去掉= ? &
return URLEncoder.encode(base64,encoding);
}
public static String decryptAES(String content, String key)
throws InvalidKeyException, NoSuchAlgorithmException,
NoSuchPaddingException, InvalidAlgorithmParameterException,
IllegalBlockSizeException, BadPaddingException, IOException {
//URL解碼
content = URLDecoder.decode(content,encoding);
// base64 解碼
byte[] encryptedBytes = Base64.decodeBase64(content);
byte[] enCodeFormat = key.getBytes(encoding);
SecretKeySpec secretKey = new SecretKeySpec(enCodeFormat, "AES");
byte[] initParam = IV_STRING.getBytes(encoding);
IvParameterSpec ivParameterSpec = new IvParameterSpec(initParam);
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, secretKey, ivParameterSpec);
byte[] result = cipher.doFinal(encryptedBytes);
return new String(result, encoding);
}
public static void main(String[] args) throws Exception {
JSONObject json = new JSONObject();
json.put("custNum", "111111");
/*json.put("name", "張三");
json.put("cityCode", "100001");
json.put("cityName", "北京市");
json.put("mobileNo", "15651876590");*/
String content = json.toJSONString();
System.out.println("加密前：" + content);
String key = "djadiKJdj49dFJLd";
System.out.println("加密密鑰和解密密鑰：" + key);
String encrypt = encryptAES(content, key);
System.out.println("加密後：" + encrypt);
String decrypt = decryptAES(encrypt , key);
System.out.println("解密後：" + decrypt);
}
}
java實現AES方式加密