HMAC SHA-1 to Match RFC 2022 Test Vectors

Demonstrates using Chilkat in Delphi to computer HMAC SHA-1 message authentication codes to match the test vectors given by RFC 2202.

Download Chilkat Crypt ActiveX

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATCRYPT2Lib_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
crypt: TChilkatCrypt2;
success: Integer;
mac: String;

begin
crypt := TChilkatCrypt2.Create(Self);

//  Any string argument automatically begins the 30-day trial.
success := crypt.UnlockComponent('Anything for 30-day trial.');
if (success <> 1) then
  begin
    Memo1.Lines.Add(crypt.LastErrorText);
    Exit;
  end;

//  The output will be Hex, so set the EncodingMode:
crypt.EncodingMode := 'hex';

//  Set the hash algorithm:
//  Choices are: md5, sha-1, sha256, sha384, sha512, md2, haval
crypt.HashAlgorithm := 'sha-1';

//  Set the HMAC key:
crypt.SetHmacKeyEncoded('0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b','hex');
mac := crypt.HmacStringENC('Hi There');
Memo1.Lines.Add(mac);

crypt.SetHmacKeyEncoded('Jefe','ansi');
mac := crypt.HmacStringENC('what do ya want for nothing?');
Memo1.Lines.Add(mac);
end;