(Delphi ActiveX) Compute Glacier SHA256 Linear Hash of a File

Computes the Amazon Glacier SHA256 linear hash for a file.

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

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
crypt: TChilkatCrypt2;
linearHashHex: WideString;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

crypt := TChilkatCrypt2.Create(Self);

// The "linear hash" is simply the SHA256 hash of the file bytes.
crypt.HashAlgorithm := 'sha256';

// Return the hash in lowercase hexidecimal format.
crypt.EncodingMode := 'hexlower';

linearHashHex := crypt.HashFileENC('qa_data/jpg/penguins.jpg');
Memo1.Lines.Add('SHA256 linear hash = ' + linearHashHex);
end;