0RTTlike
0RTTlike is a term used in network protocol discussions to describe mechanisms that aim to achieve zero or near-zero latency for initial data delivery by reusing previously established credentials. It is not an official standard, and its exact meaning can vary by context, but the core idea is to allow the client to send application data in the first exchange after initiating a connection, without waiting for a full new handshake.
In practice, 0RTTlike approaches rely on some form of cached state, such as pre-shared keys, session tickets,
Security considerations are central to 0RTTlike concepts. The main risk is replay attacks, where previously captured
Typical use cases involve scenarios requiring very low latency for repeated connections, such as high-frequency web