public void SetSenderChainKey(ChainKey nextChainKey)
{
StorageProtos.SessionStructure.Types.Chain.Types.ChainKey chainKey = StorageProtos.SessionStructure.Types.Chain.Types.ChainKey.CreateBuilder()
.SetKey(ByteString.CopyFrom(nextChainKey.GetKey()))
.SetIndex(nextChainKey.GetIndex())
.Build();
StorageProtos.SessionStructure.Types.Chain chain = _sessionStructure.SenderChain.ToBuilder()
.SetChainKey(chainKey).Build();
_sessionStructure = _sessionStructure.ToBuilder().SetSenderChain(chain).Build();
}
public void SetSenderChain(EcKeyPair senderRatchetKeyPair, ChainKey chainKey)
{
StorageProtos.SessionStructure.Types.Chain.Types.ChainKey chainKeyStructure = StorageProtos.SessionStructure.Types.Chain.Types.ChainKey.CreateBuilder()
.SetKey(ByteString.CopyFrom(chainKey.GetKey()))
.SetIndex(chainKey.GetIndex())
.Build();
StorageProtos.SessionStructure.Types.Chain senderChain = StorageProtos.SessionStructure.Types.Chain.CreateBuilder()
.SetSenderRatchetKey(ByteString.CopyFrom(senderRatchetKeyPair.GetPublicKey().Serialize()))
.SetSenderRatchetKeyPrivate(ByteString.CopyFrom(senderRatchetKeyPair.GetPrivateKey().Serialize()))
.SetChainKey(chainKeyStructure)
.Build();
_sessionStructure = _sessionStructure.ToBuilder().SetSenderChain(senderChain).Build();
}
public void SetReceiverChainKey(IEcPublicKey senderEphemeral, ChainKey chainKey)
{
Pair <StorageProtos.SessionStructure.Types.Chain, uint> chainAndIndex = GetReceiverChain(senderEphemeral);
StorageProtos.SessionStructure.Types.Chain chain = chainAndIndex.First();
StorageProtos.SessionStructure.Types.Chain.Types.ChainKey chainKeyStructure = StorageProtos.SessionStructure.Types.Chain.Types.ChainKey.CreateBuilder()
.SetKey(ByteString.CopyFrom(chainKey.GetKey()))
.SetIndex(chainKey.GetIndex())
.Build();
StorageProtos.SessionStructure.Types.Chain updatedChain = chain.ToBuilder().SetChainKey(chainKeyStructure).Build();
_sessionStructure = _sessionStructure.ToBuilder()
.SetReceiverChains((int)chainAndIndex.Second(), updatedChain) // TODO: conv
.Build();
}
public void AddReceiverChain(IEcPublicKey senderRatchetKey, ChainKey chainKey)
{
StorageProtos.SessionStructure.Types.Chain.Types.ChainKey chainKeyStructure = StorageProtos.SessionStructure.Types.Chain.Types.ChainKey.CreateBuilder()
.SetKey(ByteString.CopyFrom(chainKey.GetKey()))
.SetIndex(chainKey.GetIndex())
.Build();
StorageProtos.SessionStructure.Types.Chain chain = StorageProtos.SessionStructure.Types.Chain.CreateBuilder()
.SetChainKey(chainKeyStructure)
.SetSenderRatchetKey(ByteString.CopyFrom(senderRatchetKey.Serialize()))
.Build();
_sessionStructure = _sessionStructure.ToBuilder().AddReceiverChains(chain).Build();
if (_sessionStructure.ReceiverChainsList.Count > 5)
{
_sessionStructure = _sessionStructure.ToBuilder() /*.ClearReceiverChains()*/.Build(); //RemoveReceiverChains(0) TODO: why does it work without
}
}
public ChainKey GetSenderChainKey()
{
StorageProtos.SessionStructure.Types.Chain.Types.ChainKey chainKeyStructure = _sessionStructure.SenderChain.ChainKey;
return(new ChainKey(Hkdf.CreateFor(GetSessionVersion()),
chainKeyStructure.Key.ToByteArray(), chainKeyStructure.Index));
}
