Pascal (Lazarus/Delphi)

MD5 Hash a String (such as a password string)

See more Encryption Examples

Demonstrates how to MD5 hash a string to get MD5 hash in hex encoded string representation. (The MD5 hash is 16 bytes, and therefore a hex encoded MD5 hash would be 32 chars.) Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Crypt2;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  password: string;
  crypt: TCrypt2;
  md5Hex: string;

begin
  password := 'myPassword';

  crypt := TCrypt2.Create;
  crypt.HashAlgorithm := 'md5';
  crypt.EncodingMode := 'hex';
  md5Hex := crypt.HashStringENC(password);
  WriteLn('MD5 hash (as a hex string) = ' + md5Hex);

  //  The hex string will be uppercase.  Your application
  //  can easily convert it to lowercase if desired via non-Chilkat means..


  crypt.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.