當前加密解密方法可以使用在正式項目中,對不重要的數據進行加密。
使用中,請合理保存祕鑰並定期或不定期更換祕鑰,以對數據進行更好的隱私保護。
如果項目中不是對用戶密碼嚴格性要求,此方法可以做進一步改善,使用的密碼驗證中。
import java.security.SecureRandom;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
/**
* @author wangwei
* @version v1.0.0
* @description 加密 AES對稱加密和解密
* @date 2019-01-09
*/
public class SymmetricEncoder {
/*
* 加密
*/
public static String AESEncode(String encodeRules,String content){
try {
KeyGenerator keygen=KeyGenerator.getInstance("AES");
keygen.init(128, new SecureRandom(encodeRules.getBytes()));
SecretKey original_key=keygen.generateKey();
byte [] raw=original_key.getEncoded();
SecretKey key=new SecretKeySpec(raw, "AES");
Cipher cipher=Cipher.getInstance("AES");
cipher.init(Cipher.ENCRYPT_MODE, key);
byte [] byte_encode=content.getBytes("utf-8");
byte [] byte_AES=cipher.doFinal(byte_encode);
String AES_encode=new String(new BASE64Encoder().encode(byte_AES));
return AES_encode;
} catch (Exception e) {
e.printStackTrace();
}
return "";
}
/*
* 解密
*/
public static String AESDncode(String encodeRules,String content){
try {
KeyGenerator keygen=KeyGenerator.getInstance("AES");
keygen.init(128, new SecureRandom(encodeRules.getBytes()));
SecretKey original_key=keygen.generateKey();
byte [] raw=original_key.getEncoded();
SecretKey key=new SecretKeySpec(raw, "AES");
Cipher cipher=Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, key);
byte [] byte_content= new BASE64Decoder().decodeBuffer(content);
byte [] byte_decode=cipher.doFinal(byte_content);
String AES_decode=new String(byte_decode,"utf-8");
return AES_decode;
} catch (Exception e) {
e.printStackTrace();
}
return "";
}
}