Delphi DLL

Read JCEKS Containing Secret Keys

See more Java KeyStore (JKS) Examples

Demonstrates how to read a JCEKS keystore file containing symmetric secret keys (for AES, Blowfish, HMAC SHA25, ChaCha, etc.)

This example uses the jceks sample file that you may download from Sample JCEKS with Secret Keys

The file password is "filePassword". The password for each secret key contained in the JCEKS is "secret".

This example requires Chilkat v9.5.0.66 or greater.

Delphi DLL

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
jceks: HCkJavaKeyStore;
keyPassword: PWideChar;
i: Integer;
numSecretKeys: Integer;

begin
success := False;

// IMPORTANT: This example requires Chilkat v9.5.0.66 or greater.

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

jceks := CkJavaKeyStore_Create();

success := CkJavaKeyStore_LoadFile(jceks,'filePassword','qa_data/jks/secretKeys_filePassword.jceks');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkJavaKeyStore__lastErrorText(jceks));
    Exit;
  end;

keyPassword := 'secret';

// Iterate over each secret key and get the key bytes and aliases..
i := 0;
numSecretKeys := CkJavaKeyStore_getNumSecretKeys(jceks);
while i < numSecretKeys do
  begin

    Memo1.Lines.Add('---- Secret Key ' + IntToStr(i));
    Memo1.Lines.Add('Alias: ' + CkJavaKeyStore__getSecretKeyAlias(jceks,i));
    // Get the secret key bytes in a desired encoding (base64, hex, base64url, etc.)
    Memo1.Lines.Add('Key Bytes (hex): ' + CkJavaKeyStore__getSecretKey(jceks,keyPassword,i,'hex'));
    Memo1.Lines.Add('Key Bytes (base64): ' + CkJavaKeyStore__getSecretKey(jceks,keyPassword,i,'base64'));

    i := i + 1;
  end;

// The output:

// ---- Secret Key 0
// Alias: aes_key
// Key Bytes (hex): CB3632FD12FF3256E0048C100DDE8DEF
// Key Bytes (base64): yzYy/RL/MlbgBIwQDd6N7w==
// ---- Secret Key 1
// Alias: chacha_key
// Key Bytes (hex): B37C73871C7B8F8D488DDE2F1A78CF51B6D74FFAF0E9B338B9609510A4688136
// Key Bytes (base64): s3xzhxx7j41Ijd4vGnjPUbbXT/rw6bM4uWCVEKRogTY=
// ---- Secret Key 2
// Alias: hmac_sha256_key
// Key Bytes (hex): 3C644B53F904A3BF161D3EAD1364E52EAE6C6EC8C61133B974A2484B894539C0
// Key Bytes (base64): PGRLU/kEo78WHT6tE2TlLq5sbsjGETO5dKJIS4lFOcA=
// ---- Secret Key 3
// Alias: blowfish_key
// Key Bytes (hex): FFE0574DE04B50F1E2FE79B4160B3B2183ACFF41721C46BFF9764CF24CA40E3C
// Key Bytes (base64): /+BXTeBLUPHi/nm0Fgs7IYOs/0FyHEa/+XZM8kykDjw=

CkJavaKeyStore_Dispose(jceks);

end;