关于加密和解密的方法

最近在做一个关于密码加密和解密的winform，要求对密码的TextBox输入的字符串进行加密，同时传值得时候也要解析出来，于是就写了一个demo，仅供参考。

EncryptOrDecryptPassword类包含加密和解密两个简单的方法，这个方法是根据字符的Encoding来加密的，然后在main函数中调用。

EncryptOrDecryptPassword类如下：

 public class EncryptOrDecryptPassword
    {
       public string DecryptPassword(string password)
       {
           try
           {
               UTF8Encoding encode = new UTF8Encoding();
               Decoder utf8Decode = encode.GetDecoder();
               byte[] decodeByte = Convert.FromBase64String(password);
               int charCount = utf8Decode.GetCharCount(decodeByte, 0, decodeByte.Length);
               char[] decodeChar = new char[charCount];
               utf8Decode.GetChars(decodeByte, 0, decodeByte.Length, decodeChar, 0);
               string result = new String(decodeChar);
               return result;
           }
           catch (Exception ex)
           {
               throw new Exception("Error in decoding password:" + ex.Message);
           }
       }

       public string EncryptedPwd(string password)
       {
           try
           {
               byte[] en_Data = new byte[password.Length];
               en_Data = Encoding.UTF8.GetBytes(password);
               string encodedData = Convert.ToBase64String(en_Data);
               return encodedData;
           }
           catch (Exception ex)
           {
               throw new Exception("Error in encode password: " + ex.Message);
           }

       }
    }

Program 类如下：

 class Program
    {
        static string inPassword = string.Empty;
        static string outPassword = string.Empty;
        static void Main(string[] args)
        {
            Console.WriteLine("Please input your password:");
            inPassword = Console.ReadLine();
            EncryptOrDecryptPassword encrytOrDecryptPassword = new EncryptOrDecryptPassword();
            string tempPWD = encrytOrDecryptPassword.EncryptedPwd(inPassword);
            Console.WriteLine(tempPWD);
            outPassword = encrytOrDecryptPassword.DecryptPassword(tempPWD);
            Console.WriteLine(outPassword);
            Console.ReadKey();
        }
    }

随便输入字符串Debug：