[fpc-pascal] Re: encryption and decryption

[leledumbo]

For examples, I think it's better to use the data type wrapper of the
Read/Write, instead of using the low level methods:

{$mode objfpc}{$H+}

uses classes,blowfish;

var
  en: TBlowFishEncryptStream;
  de: TBlowFishDeCryptStream;
  s1,s2: TStringStream;
  key,value,temp: String;
begin
  key := 'testkey';
  value := 'this is a string';

  s1 := TStringStream.Create('');
  en := TBlowFishEncryptStream.Create(key,s1);
  en.WriteAnsiString(value);
  en.Free;

  WriteLn('encrypted: ' + s1.DataString);

  s2 := TStringStream.Create(s1.DataString);
  s1.Free;

  de := TBlowFishDeCryptStream.Create(key,s2);

  temp := de.ReadAnsiString;
  WriteLn('decrypted: ' + temp);

  de.Free;
  s2.Free;
end. 

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