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xiaoyong931011

2023-01-17 61bdd325c8324c24c7092ae1f4e2194fc049457c

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package cc.mrbird.febs.pay.util;
 
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.security.Security;
import java.util.Base64;
 
/**
 * AES加解密工具类
 * @author chenyf
 * @date 2018-12-15
 */
public class AESUtil {
    //   private static final Logger logger = LoggerFactory.getLogger(AesUtils.class);
        public static final String ALGORITHM = "AES/ECB/PKCS5Padding";
        public static final String UTF_8 = "UTF-8";
        public static final String AES = "AES";
        public static final String BC = "BC";
 
 
        static {
            //仅加载一次，不要多次加载，可能会导致内存溢出
            Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
        }
 
        /**
         * 网联敏感字段AES加密
         *
         * @param str 敏感字段原文
         * @param key AES密钥 必须是8位、16位、24位
         * @return
         */
        public static String Aes256Encode(String str, String key) {
          //  if(StringUtil.isNotBlank(str)) {
                try {
                    Cipher cipher = Cipher.getInstance(ALGORITHM, BC);
                    SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(UTF_8), AES); // 生成加密解密需要的Key
                    cipher.init(Cipher.ENCRYPT_MODE, keySpec);
                    byte[] result = cipher.doFinal(str.getBytes(UTF_8));
                    return Base64.getEncoder().encodeToString(result);
                } catch (Exception e) {
                   // logger.error("Aes256Encode error:", e);
                    return null;
                }
 
        }
 
        /**
         * 网联敏感字段密文解密
         *
         * @param base64Str 要被解密的密文.做了base64编码 base64Str
         * @param key       AES密钥 必须是8位、16位、24位
         * @return 解密后的字符串
         */
        public static String Aes256Decode(String base64Str, String key) {
           // if (StringUtil.isNotBlank(base64Str)) {
                String result = null;
                try {
                    Cipher cipher = Cipher.getInstance(ALGORITHM, BC);
                    SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(UTF_8), AES); // 生成加密解密需要的Key
                    cipher.init(Cipher.DECRYPT_MODE, keySpec);
                    byte[] decoded = cipher.doFinal(Base64Util.decode(base64Str));
                    result = new String(decoded, "UTF-8");
                } catch (Exception e) {
                    e.printStackTrace();
                }
                return result;
        }
 
 
    }