/// <summary>
/// 解密字符串，输入BASE64编码字符串
/// </summary>
/// <param name="source">要解密的BASE64编码字符串</param>
/// <param name="key">密钥字符串，长度为8或者24</param>
/// <returns>解密的明文字符串</returns>
public static string Decrypt(string source, string key)
{
byte[] keyBytes = Encoding.UTF8.GetBytes(key);
DesHelper des = new DesHelper(keyBytes);
return(des.Decrypt(source));
}
/// <summary>
/// 解密字节数组
/// </summary>
/// <param name="source">要解密的字节数组</param>
/// <param name="key">密钥字节数组，长度为8或者24</param>
/// <returns>解密后的字节数组</returns>
public static byte[] Decrypt(byte[] source, byte[] key)
{
DesHelper des = new DesHelper(key);
return(des.Decrypt(source));
}