CloseChannel closes connection.

Connect to "server", given the ip address and port.

InitNetworkParalelization creates communication channels for parallelization: channel btw each pair of machines for every thread.

MarshalCV returns bytes for ct sizes and bytes for each chiphertext: 8 bytes used //TODO: check if 4 bytes are enough.

OpenChannel opens channel at specificed ip address and port and returns channel (server side, connection for client to listen to).

UnmarshalCipherVector updates cv to have the correct ciphertexts (cv must have the corrext size).