public function testDerivation()
{
$input = 'presumablyADiffieHellmanResult';
$derivation = AES::deriveKey($input);
$arbitraryText = 'correcthorsebatterystaple';
$derivedKey = AES::deriveKey($arbitraryText);
// var_dump($derivedKey);
$this->assertEquals('CfSmnHxb6DEdPg7+/+LmPrbHIjFb6e0Z5fzv+psTKSM=', $derivation, 'derivation works');
}
public function calculateSymmetricKey($publicKey = null, $deriveKey = true)
{
if ($publicKey == null) {
$publicKey = $this->getPublicKey();
}
$diffieHellman = ECC::diffieHellman($publicKey, $this->getPrivateKey());
if ($deriveKey) {
return AES::deriveKey($diffieHellman);
}
return $diffieHellman;
}
