pub type TopicId = [u8; 32];Expand description
Identifier for an gossip- or sync topic.
A topic identifier is required when subscribing or publishing to a stream.
Topics usually describe concrete data which nodes want to exchange over, for example a document id or chat group id and so forth. Applications usually want to share topics via a secure side channel.
WARNING: Sensitive topics have to be treated like secret values and generated using a cryptographically secure pseudorandom number generator (CSPRNG). Otherwise they can be easily guessed by third parties or leaked during discovery.