(Delphi DLL) MD5 Hash a String (such as a password string)

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.)

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Crypt2;

...

procedure TForm1.Button1Click(Sender: TObject);
var
password: PWideChar;
crypt: HCkCrypt2;
md5Hex: PWideChar;

begin
password := 'myPassword';

crypt := CkCrypt2_Create();
CkCrypt2_putHashAlgorithm(crypt,'md5');
CkCrypt2_putEncodingMode(crypt,'hex');
md5Hex := CkCrypt2__hashStringENC(crypt,password);
Memo1.Lines.Add('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.

CkCrypt2_Dispose(crypt);

end;