C # implements BASE64 processing of cryptographic decryption, encoding and decoding sample code

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The example of this paper describes the C # implementation of BASE64 processing of encryption and decryption, encoding and decoding. Share to everyone for your reference, as follows:

using System;
using System.Text;
namespace Common
{
  /// <summary>
  /// Implement Base64 encryption and decryption
  /// Author: Duke
  /// </ summary>
  public sealed class Base64
  {
    /// <summary>
    /// Base64 encryption
    /// </ summary>
    /// <param name = "codeName"> Encoding used for encryption </ param>
    /// <param name = "source"> plaintext to be encrypted </ param>
    /// <returns> </ returns>
    public static string EncodeBase64 (Encoding encode, string source)
    {
      byte [] bytes = encode.GetBytes (source);
      try
      {
        encode = Convert.ToBase64String (bytes);
      }
      catch
      {
        encode = source;
      }
      return encode;
    }
    /// <summary>
    /// Base64 encryption, using utf8 encoding
    /// </ summary>
    /// <param name = "source"> plaintext to be encrypted </ param>
    /// <returns> encrypted string </ returns>
    public static string EncodeBase64 (string source)
    {
      return EncodeBase64 (Encoding.UTF8, source);
    }
    /// <summary>
    /// Base64 decryption
    /// </ summary>
    /// <param name = "codeName"> The encoding method used for decryption, pay attention to the same method used for encryption </ param>
    /// <param name = "result"> the ciphertext to be decrypted </ param>
    /// <returns> the decrypted string </ returns>
    public static string DecodeBase64 (Encoding encode, string result)
    {
      string decode = "";
      byte [] bytes = Convert.FromBase64String (result);
      try
      {
        decode = encode.GetString (bytes);
      }
      catch
      {
        decode = result;
      }
      return decode;
    }
    /// <summary>
    /// Base64 decryption, using utf8 encoding
    /// </ summary>
    /// <param name = "result"> the ciphertext to be decrypted </ param>
    /// <returns> the decrypted string </ returns>
    public static string DecodeBase64 (string result)
    {
      return DecodeBase64 (Encoding.UTF8, result);
    }
  }
}