private May <uint> processV2(SessionRecord sessionRecord, PreKeyWhisperMessage message)
{
if (!message.getPreKeyId().HasValue)
{
throw new InvalidKeyIdException("V2 message requires one time prekey id!");
}
if (!preKeyStore.ContainsPreKey(message.getPreKeyId().ForceGetValue()) &&
sessionStore.ContainsSession(remoteAddress))
{
//Log.w(TAG, "We've already processed the prekey part of this V2 session, letting bundled message fall through...");
return(May <uint> .NoValue); //May.absent();
}
ECKeyPair ourPreKey = preKeyStore.LoadPreKey(message.getPreKeyId().ForceGetValue()).getKeyPair();
BobAxolotlParameters.Builder parameters = BobAxolotlParameters.newBuilder();
parameters.setOurIdentityKey(identityKeyStore.GetIdentityKeyPair())
.setOurSignedPreKey(ourPreKey)
.setOurRatchetKey(ourPreKey)
.setOurOneTimePreKey(May <ECKeyPair> .NoValue) //absent
.setTheirIdentityKey(message.getIdentityKey())
.setTheirBaseKey(message.getBaseKey());
if (!sessionRecord.isFresh())
{
sessionRecord.archiveCurrentState();
}
RatchetingSession.initializeSession(sessionRecord.getSessionState(), message.getMessageVersion(), parameters.create());
sessionRecord.getSessionState().setLocalRegistrationId(identityKeyStore.GetLocalRegistrationId());
sessionRecord.getSessionState().setRemoteRegistrationId(message.getRegistrationId());
sessionRecord.getSessionState().setAliceBaseKey(message.getBaseKey().serialize());
if (message.getPreKeyId().ForceGetValue() != Medium.MAX_VALUE)
{
return(message.getPreKeyId());
}
else
{
return(May <uint> .NoValue); // May.absent();
}
}
private May <uint> ProcessV2(SessionRecord sessionRecord, PreKeyWhisperMessage message)
{
if (!message.GetPreKeyId().HasValue)
{
throw new InvalidKeyIdException("V2 message requires one time prekey id!");
}
if (!preKeyStore.ContainsPreKey(message.GetPreKeyId().ForceGetValue()) &&
sessionStore.ContainsSession(remoteAddress))
{
return(May <uint> .NoValue);
}
ECKeyPair ourPreKey = preKeyStore.LoadPreKey(message.GetPreKeyId().ForceGetValue()).GetKeyPair();
BobAxolotlParameters.Builder parameters = BobAxolotlParameters.NewBuilder();
parameters.SetOurIdentityKey(identityKeyStore.GetIdentityKeyPair())
.SetOurSignedPreKey(ourPreKey)
.SetOurRatchetKey(ourPreKey)
.SetOurOneTimePreKey(May <ECKeyPair> .NoValue) //absent
.SetTheirIdentityKey(message.GetIdentityKey())
.SetTheirBaseKey(message.GetBaseKey());
if (!sessionRecord.IsFresh())
{
sessionRecord.ArchiveCurrentState();
}
RatchetingSession.InitializeSession(sessionRecord.GetSessionState(), message.GetMessageVersion(), parameters.Create());
sessionRecord.GetSessionState().SetLocalRegistrationId(identityKeyStore.GetLocalRegistrationId());
sessionRecord.GetSessionState().SetRemoteRegistrationId(message.GetRegistrationId());
sessionRecord.GetSessionState().SetAliceBaseKey(message.GetBaseKey().Serialize());
if (message.GetPreKeyId().ForceGetValue() != Medium.MAX_VALUE)
{
return(message.GetPreKeyId());
}
else
{
return(May <uint> .NoValue); // May.absent();
}
}
public bool ContainsPreKey(uint preKeyId)
{
return(preKeyStore.ContainsPreKey(preKeyId));
}