Solved

Encrypt string and decrypt string

Posted on 2000-02-21
4
385 Views
Last Modified: 2010-04-04
Hi

i have value in edit box some i want to encrypt, and be able to decypt it again

Esk
0
Comment
Question by:esk
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 17

Expert Comment

by:inthe
ID: 2543517
delete this copy..
0
 
LVL 2

Expert Comment

by:gikam
ID: 2544902
explain in detail what u really want to do
0
 

Accepted Solution

by:
Iliad earned 100 total points
ID: 2549954
Try to use the following :-

const
   C1 = 52845;   {Used for encryption  Master Password string}
           C2 = 11719;
           Key = 1234;

        { Standard Decryption algorithm - Copied from Borland}
        function Decrypt(const S: String; Key: Word): String;
        var
          I: byte;
        begin
          Result[0] := S[0];
          for I := 1 to Length(S) do begin
            Result[I] := char(byte(S[I]) xor (Key shr 8));
            Key := (byte(S[I]) + Key) * C1 + C2;
          end;
        end;

        { Standard Encryption algorithm - Copied from Borland}
        function Encrypt(const S: String; Key: Word): String;
        Var
          I: byte;
        begin
          Result[0] := S[0];
          for I := 1 to Length(S) do begin
            Result[I] := char(byte(S[I]) xor (Key shr 8));
            Key := (byte(Result[I]) + Key) * C1 + C2;
          end;
        end;

Code copied from DIL
0
 

Author Comment

by:esk
ID: 2550878
upps, i was looking on wrong, but i have give you the points
thanks Barry
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction The parallel port is a very commonly known port, it was widely used to connect a printer to the PC, if you look at the back of your computer, for those who don't have newer computers, there will be a port with 25 pins and a small print…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

735 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question