AesUtil.java 文件源码

/**
 * AES解密
 * @param encryptBytes 待解密的byte[]
 * @param decryptKey 解密密钥
 * @return 解密后的
 * @throws Exception
 */
public static byte[] AesDecryptByBytes(byte[] encryptBytes,byte[] decryptKey) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
    secureRandom.setSeed(decryptKey);
    kgen.init(128,secureRandom);
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(kgen.generateKey().getEncoded(), "AES"));
    byte[] decryptBytes = cipher.doFinal(encryptBytes);
    return decryptBytes;
}