AES工具類
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import java.util.UUID;

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

/**

• AES工具類，密鑰必須是16位字符串
  /
  public class AESUtils {
  public static final String SECREKEY = "*********!";//加密的key;
  /偏移量,必須是16位字符串/
  private static final String IV_STRING = "********";

  /**

  • 默認(rèn)的密鑰
    */
    public static final String DEFAULT_KEY = "1bd83b249a414036";

  /**

  • 產(chǎn)生隨機(jī)密鑰(這里產(chǎn)生密鑰必須是16位)
    */
    public static String generateKey() {
    String key = UUID.randomUUID().toString();
    key = key.replace("-", "").substring(0, 16);// 替換掉-號(hào)
    return key;
    }

  /**

  • 加密
  • @param key
  • @param content
  • @return
    */
    public static String encryptData(String key, String content) {
    byte[] encryptedBytes = new byte[0];
    try {
    byte[] byteContent = content.getBytes("UTF-8");
    // 注意，為了能與 iOS 統(tǒng)一
    // 這里的 key 不可以使用 KeyGenerator、SecureRandom、SecretKey 生成
    byte[] enCodeFormat = key.getBytes();
    SecretKeySpec secretKeySpec = new SecretKeySpec(enCodeFormat, "AES");
    byte[] initParam = IV_STRING.getBytes();
    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);
    encryptedBytes = cipher.doFinal(byteContent);
    // 同樣對(duì)加密后數(shù)據(jù)進(jìn)行 base64 編碼
    return Base64Utils.encode(encryptedBytes);
    } catch (Exception e) {
    e.printStackTrace();
    }
    return null;
    }

  /**

  • 解密
  • @param key
  • @param content
  • @return
    */
    public static String decryptData(String key, String content) {
    try {
    // base64 解碼
    byte[] encryptedBytes = Base64Utils.decode(content);
    byte[] enCodeFormat = key.getBytes();
    SecretKeySpec secretKey = new SecretKeySpec(enCodeFormat, "AES");
    byte[] initParam = IV_STRING.getBytes();
    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, "UTF-8");
    } catch (Exception e) {
    e.printStackTrace();
    }
    return null;
    }

  public static void main(String[] args) {
  String plainText = AESUtils.decryptData("F431E6FF9051DA07", "q8jHYk6LSbwC2K4zmr/wRZo8mlH0VdMzPEcAzQadTCpSrPQ/ZnTmuIvQxiLOnUXu");
  System.out.println("aes加密后: " + plainText);
  }

}