package com.ruoyi.common.utils.sign;

import javax.crypto.Cipher;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.security.NoSuchAlgorithmException;
import java.util.Base64;

public class AesUtil {

    private static final String KEY = "QfOpO2026@SecretKey#Aes256!00001";
    private static final String IV = "1234567890123456";

    public static String decrypt(String cipherText) {
        String data = "";
        Cipher cipher = null;
        try {
            cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
            SecretKeySpec keySpec = new SecretKeySpec(KEY.getBytes(), "AES");
            IvParameterSpec ivSpec = new IvParameterSpec(IV.getBytes());
            cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
            byte[] original = cipher.doFinal(Base64.getDecoder().decode(cipherText));
            data = new String(original);
        } catch (Exception e) {
            String m=e.getMessage();
        }
        return data;
    }

    public static String encrypt(String data) {
        String text = "";
        try {
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
            cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(KEY.getBytes(), "AES"), new IvParameterSpec(IV.getBytes()));
            byte[] encryptedBytes = cipher.doFinal(data.getBytes());
            text = Base64.getEncoder().encodeToString(encryptedBytes);
        } catch (Exception e) {
            String m = e.getMessage();
        }
        return text;
    }
}