(Delphi DLL) Workaround for the deprecated Crypt2.HashString method

Shows how to replace the deprecated HashString method. (Chilkat is moving away from the use of CkByteData.)

Note: This example requires Chilkat v11.0.0 or greater.

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, CkByteData, Crypt2;

...

procedure TForm1.Button1Click(Sender: TObject);
var
crypt: HCkCrypt2;
inputStr: PWideChar;
outData: HCkByteData;
hash_base64: PWideChar;

begin
crypt := CkCrypt2_Create();

CkCrypt2_putCharset(crypt,'utf-8');

CkCrypt2_putHashAlgorithm(crypt,'sha256');

inputStr := 'This is a test.';

// ------------------------------------------------------------------------
// The HashString method is deprecated:

outData := CkByteData_Create();

success := CkCrypt2_HashString(crypt,inputStr,outData);

// ------------------------------------------------------------------------
// Workaround.
// (Chilkat is moving away from using CkByteData)

CkCrypt2_putEncodingMode(crypt,'base64');
hash_base64 := CkCrypt2__hashStringENC(crypt,inputStr);

Memo1.Lines.Add(hash_base64);

CkCrypt2_Dispose(crypt);
CkByteData_Dispose(outData);

end;