public function processV3($sessionRecord, $message)
{
/*
:param sessionRecord:
:param message:
:type message: PreKeyWhisperMessage
:return:
*/
if ($sessionRecord->hasSessionState($message->getMessageVersion(), $message->getBaseKey()->serialize())) {
Log::warn('v3', "We've already setup a session for this V3 message, letting bundled message fall through...");
return;
}
$ourSignedPreKey = $this->signedPreKeyStore->loadSignedPreKey($message->getSignedPreKeyId())->getKeyPair();
$parameters = new BobBuilder();
$parameters->setTheirBaseKey($message->getBaseKey())->setTheirIdentityKey($message->getIdentityKey())->setOurIdentityKey($this->identityKeyStore->getIdentityKeyPair())->setOurSignedPreKey($ourSignedPreKey)->setOurRatchetKey($ourSignedPreKey);
if ($message->getPreKeyId() != null) {
$parameters->setOurOneTimePreKey($this->preKeyStore->loadPreKey($message->getPreKeyId())->getKeyPair());
} else {
$parameters->setOurOneTimePreKey(null);
}
if (!$sessionRecord->isFresh()) {
$sessionRecord->archiveCurrentState();
}
RatchetingSession::initializeSessionAsBob($sessionRecord->getSessionState(), $message->getMessageVersion(), $parameters->create());
$sessionRecord->getSessionState()->setLocalRegistrationId($this->identityKeyStore->getLocalRegistrationId());
$sessionRecord->getSessionState()->setRemoteRegistrationId($message->getRegistrationId());
$sessionRecord->getSessionState()->setAliceBaseKey($message->getBaseKey()->serialize());
if ($message->getPreKeyId() != null && $message->getPreKeyId() != Medium::MAX_VALUE) {
return $message->getPreKeyId();
} else {
return;
}
}
protected function initializeSessionsV3($aliceSessionState, $bobSessionState)
{
$aliceIdentityKeyPair = Curve::generateKeyPair();
$aliceIdentityKey = new IdentityKeyPair(new IdentityKey($aliceIdentityKeyPair->getPublicKey()), $aliceIdentityKeyPair->getPrivateKey());
$aliceBaseKey = Curve::generateKeyPair();
$aliceEphemeralKey = Curve::generateKeyPair();
$alicePreKey = $aliceBaseKey;
$bobIdentityKeyPair = Curve::generateKeyPair();
$bobIdentityKey = new IdentityKeyPair(new IdentityKey($bobIdentityKeyPair->getPublicKey()), $bobIdentityKeyPair->getPrivateKey());
$bobBaseKey = Curve::generateKeyPair();
$bobEphemeralKey = $bobBaseKey;
$bobPreKey = Curve::generateKeyPair();
$aliceParameters = AliceAxolotlParameters::newBuilder()->setOurBaseKey($aliceBaseKey)->setOurIdentityKey($aliceIdentityKey)->setTheirOneTimePreKey(null)->setTheirRatchetKey($bobEphemeralKey->getPublicKey())->setTheirSignedPreKey($bobBaseKey->getPublicKey())->setTheirIdentityKey($bobIdentityKey->getPublicKey())->create();
$bobParameters = BobAxolotlParameters::newBuilder()->setOurRatchetKey($bobEphemeralKey)->setOurSignedPreKey($bobBaseKey)->setOurOneTimePreKey(null)->setOurIdentityKey($bobIdentityKey)->setTheirIdentityKey($aliceIdentityKey->getPublicKey())->setTheirBaseKey($aliceBaseKey->getPublicKey())->create();
RatchetingSession::initializeSessionAsAlice($aliceSessionState, 3, $aliceParameters);
RatchetingSession::initializeSessionAsBob($bobSessionState, 3, $bobParameters);
}
