How do I decode a base64 encoded string

Question

I am trying to  decode  this following Base64 string      OBFZDTcPCxlCKhdXCQ0kMQhKPh9uIgYIAQxALBtZAwUeOzcdcUEeW0dMO1kbPElWCV1ISFFKZ0kdWFlLAURPZhEFQVseXVtPOUUICVhMAzcfZ14AVEdIVVgfAUIBWVpOUlAeaUVMXFlKIy9rGUN0VF08Oz1POxFfTCcVFw1LMQNbBQYWAQ     This is what I know about the string itself    The original string is first passed through the following code   private static string m000493 string p0  string p1        StringBuilder builder   new StringBuilder p0       StringBuilder builder2   new StringBuilder p1       StringBuilder builder3   new StringBuilder p0 Length       int num   0  Label 0084      while  num  lt  builder Length                int num2   0          while  num2  lt  p1 Length                        if   num    builder Length      num2    builder2 Length                                 MessageBox Show  EH                     goto Label 0084                            char ch   builder num               char ch2   builder2 num2               ch    char  ch   ch2               builder3 Append ch               num2                num                        return m0001cd builder3 ToString         The p1 part in the code is supposed to be the string   p0lizei    It is then converted to a Base64 string by the following code   private static string m0001cd string p0        string str2      try               byte   buffer   new byte p0 Length           str2   Convert ToBase64String Encoding UTF8 GetBytes p0              catch  Exception exception                throw new Exception  Error in base64Encode    exception Message             return str2       The question is  how do I decode the Base64 string so that I can find out what the original string is

User · Answer

The m000493 method seems to perform some kind of XOR encryption  This means that the same method can be used for both encrypting and decrypting the text  All you have to do is reverse m0001cd   string p0   Encoding UTF8 GetString Convert FromBase64String  OBFZDT         string result   m000493 p0    p0lizei           result     gaia unplugged Ta       with return m0001cd builder3 ToString     changed to return builder3 ToString

User · Answer

Simple   byte   data   Convert FromBase64String encodedString   string decodedString   Encoding UTF8 GetString data

[c#] How do I decode a base64 encoded string?

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