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(Delphi ActiveX) Password_Digest = Base64 (SHA-1 ( nonce + created + SHA-1 (password) ) )Demonstrates how to compute: Password_Digest = Base64 (SHA-1 ( nonce + created + SHA-1 (password)))
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 password: WideString; crypt: TChilkatCrypt2; prng: TChilkatPrng; bd: TChilkatBinData; dt: TCkDateTime; created: WideString; passwordSha1: WideString; passwordDigest: WideString; begin // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. password := 'secret'; crypt := TChilkatCrypt2.Create(Self); crypt.HashAlgorithm := 'SHA-1'; crypt.EncodingMode := 'base64'; // Generate a 16-byte random nonce prng := TChilkatPrng.Create(Self); bd := TChilkatBinData.Create(Self); prng.GenRandomBd(16,bd.ControlInterface); // Get the current date/time in a string with this format: 2010-06-08T07:26:50Z dt := TCkDateTime.Create(Self); dt.SetFromCurrentSystemTime(); created := dt.GetAsTimestamp(0); bd.AppendString(created,'utf-8'); // This example wishes to calculate a password digest like this: // Password_Digest = Base64 ( SHA-1 ( nonce + created + SHA-1(password) ) ) // First SHA-1 digest the password... passwordSha1 := crypt.HashStringENC(password); // Append the 20 binary bytes of the SHA1 hash to bd, which already contains the nonce and created date/time. bd.AppendEncoded(passwordSha1,'base64'); passwordDigest := crypt.HashBdENC(bd.ControlInterface); Memo1.Lines.Add('Base64 password digest = ' + passwordDigest); end; |
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