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  4. Secure enrcyption function

Secure enrcyption function

Scheduled Pinned Locked Moved The Weird and The Wonderful
security
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  • O Offline
    O Offline
    o m n i
    wrote on last edited by
    #1

    Found this great code for encryption in our codebase. All of the client's extremely sensitive information is being stored locally using this.

    string Encryption::EncryptString(string dat) {
    string n = "qwertyuiopasdfghjklzxcvbnm"
    n += n + n + n + n; //keeps the full string from appearing in string table
    for (size_t i = 0; i < dat.size(); i++) {
    dat[i] ^= n[i];
    }
    return dat;
    }

    And it gets even better when you see the decrypt function:

    string Encryption::DecryptString(string dat) {
    return EncryptString(dat); //xor is reversible
    }

    I I F B M 7 Replies Last reply
    0
    • O o m n i

      Found this great code for encryption in our codebase. All of the client's extremely sensitive information is being stored locally using this.

      string Encryption::EncryptString(string dat) {
      string n = "qwertyuiopasdfghjklzxcvbnm"
      n += n + n + n + n; //keeps the full string from appearing in string table
      for (size_t i = 0; i < dat.size(); i++) {
      dat[i] ^= n[i];
      }
      return dat;
      }

      And it gets even better when you see the decrypt function:

      string Encryption::DecryptString(string dat) {
      return EncryptString(dat); //xor is reversible
      }

      I Offline
      I Offline
      Ibrahim Yusuf
      wrote on last edited by
      #2

      Superb. Microsoft should remove the System.Security.Cryptography as soon as possible. ;P

      1 Reply Last reply
      0
      • O o m n i

        Found this great code for encryption in our codebase. All of the client's extremely sensitive information is being stored locally using this.

        string Encryption::EncryptString(string dat) {
        string n = "qwertyuiopasdfghjklzxcvbnm"
        n += n + n + n + n; //keeps the full string from appearing in string table
        for (size_t i = 0; i < dat.size(); i++) {
        dat[i] ^= n[i];
        }
        return dat;
        }

        And it gets even better when you see the decrypt function:

        string Encryption::DecryptString(string dat) {
        return EncryptString(dat); //xor is reversible
        }

        I Offline
        I Offline
        imagiro
        wrote on last edited by
        #3

        Question: I use another keyboard layout. Will it still work? However, this is a good encryption function - only the first 130 chars will be encrypted with a known key...

        1 Reply Last reply
        0
        • O o m n i

          Found this great code for encryption in our codebase. All of the client's extremely sensitive information is being stored locally using this.

          string Encryption::EncryptString(string dat) {
          string n = "qwertyuiopasdfghjklzxcvbnm"
          n += n + n + n + n; //keeps the full string from appearing in string table
          for (size_t i = 0; i < dat.size(); i++) {
          dat[i] ^= n[i];
          }
          return dat;
          }

          And it gets even better when you see the decrypt function:

          string Encryption::DecryptString(string dat) {
          return EncryptString(dat); //xor is reversible
          }

          F Offline
          F Offline
          fjdiewornncalwe
          wrote on last edited by
          #4

          Oh Horror of Horrors... This one is certainly one of the best. I don't think it could have been any worse if it had been written in vbscript.

          I wasn't, now I am, then I won't be anymore.

          1 Reply Last reply
          0
          • O o m n i

            Found this great code for encryption in our codebase. All of the client's extremely sensitive information is being stored locally using this.

            string Encryption::EncryptString(string dat) {
            string n = "qwertyuiopasdfghjklzxcvbnm"
            n += n + n + n + n; //keeps the full string from appearing in string table
            for (size_t i = 0; i < dat.size(); i++) {
            dat[i] ^= n[i];
            }
            return dat;
            }

            And it gets even better when you see the decrypt function:

            string Encryption::DecryptString(string dat) {
            return EncryptString(dat); //xor is reversible
            }

            B Offline
            B Offline
            BillW33
            wrote on last edited by
            #5

            That is a truly brilliant encryption strategy, I will have to use it the next time I need such a thing. X|

            Just because the code works, it doesn't mean that it is good code.

            1 Reply Last reply
            0
            • O o m n i

              Found this great code for encryption in our codebase. All of the client's extremely sensitive information is being stored locally using this.

              string Encryption::EncryptString(string dat) {
              string n = "qwertyuiopasdfghjklzxcvbnm"
              n += n + n + n + n; //keeps the full string from appearing in string table
              for (size_t i = 0; i < dat.size(); i++) {
              dat[i] ^= n[i];
              }
              return dat;
              }

              And it gets even better when you see the decrypt function:

              string Encryption::DecryptString(string dat) {
              return EncryptString(dat); //xor is reversible
              }

              M Offline
              M Offline
              musefan
              wrote on last edited by
              #6

              I have tried your suggestion for encrypting and decrypting but it keeps giving me errors when I try to play the code. I really need this to work ASAP as it is a very important project for me!!!

              return 5;

              L 1 Reply Last reply
              0
              • M musefan

                I have tried your suggestion for encrypting and decrypting but it keeps giving me errors when I try to play the code. I really need this to work ASAP as it is a very important project for me!!!

                return 5;

                L Offline
                L Offline
                Lutoslaw
                wrote on last edited by
                #7

                It looks like some urgentz univoters didn't get it. :rolleyes: PS. I had considered voting you up but I found these two uni-votes funnier than the content. Sorry ;P

                Greetings - Jacek

                1 Reply Last reply
                0
                • O o m n i

                  Found this great code for encryption in our codebase. All of the client's extremely sensitive information is being stored locally using this.

                  string Encryption::EncryptString(string dat) {
                  string n = "qwertyuiopasdfghjklzxcvbnm"
                  n += n + n + n + n; //keeps the full string from appearing in string table
                  for (size_t i = 0; i < dat.size(); i++) {
                  dat[i] ^= n[i];
                  }
                  return dat;
                  }

                  And it gets even better when you see the decrypt function:

                  string Encryption::DecryptString(string dat) {
                  return EncryptString(dat); //xor is reversible
                  }

                  J Offline
                  J Offline
                  Jorgen Sigvardsson
                  wrote on last edited by
                  #8

                  As long as you hide the key well, and use it only once... :D

                  -- Kein Mitleid Für Die Mehrheit

                  1 Reply Last reply
                  0
                  • O o m n i

                    Found this great code for encryption in our codebase. All of the client's extremely sensitive information is being stored locally using this.

                    string Encryption::EncryptString(string dat) {
                    string n = "qwertyuiopasdfghjklzxcvbnm"
                    n += n + n + n + n; //keeps the full string from appearing in string table
                    for (size_t i = 0; i < dat.size(); i++) {
                    dat[i] ^= n[i];
                    }
                    return dat;
                    }

                    And it gets even better when you see the decrypt function:

                    string Encryption::DecryptString(string dat) {
                    return EncryptString(dat); //xor is reversible
                    }

                    V Offline
                    V Offline
                    Vladimir Svyatski
                    wrote on last edited by
                    #9

                    You know, this function is so great that it will crash the application if "dat" is long enough (longer than 130 symbols).

                    1 Reply Last reply
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