Delphi ActiveX

Example: Crypt2.DecryptStringENC method

Demonstrates how to call the DecryptStringENC method. Delphi ActiveX

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;
encodedEncrypted: WideString;
originalText: WideString;

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

crypt := TChilkatCrypt2.Create(Self);

crypt.CryptAlgorithm := 'aes';
crypt.CipherMode := 'cbc';
crypt.KeyLength := 128;
crypt.SetEncodedKey('000102030405060708090A0B0C0D0E0F','hex');
crypt.SetEncodedIV('000102030405060708090A0B0C0D0E0F','hex');
crypt.EncodingMode := 'base64';

// Return the base64 encoded encrypted bytes
encodedEncrypted := crypt.EncryptStringENC('Hello World!');
Memo1.Lines.Add('Encrypted: ' + encodedEncrypted);

// Output:
// Encrypted: qiq+IFhcjTkEIkZyf31V/g==

// Decrypt
originalText := crypt.DecryptStringENC(encodedEncrypted);

Memo1.Lines.Add('Decrypted: ' + originalText);

// Output:
// Decrypted: Hello World!
end;