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What is SSL session resumption?
To help mitigate some of the costs, TLS Session Resumption provides a mechanism to resume or share the same negotiated secret key data between multiple connections. TLS Session Resumption can be implemented with session identifiers and session tickets mechanisms, while TLS 1.3 uses pre-shared keys (PSK) mechanism.
What is TLS session cache?
Transport Layer Security (TLS) session caching allows the Oracle Communications Session Border Controller to cache key information for TLS connections, and to set the length of time that the information is cached. One result of the successful handshake is the creation of a unique session identifier. …
How does session ticket resumption work in TLS?
Session ticket resumption is designed to address this issue. The idea is simple: outsource session storage to clients. A session ticket is a blob of a session key and associated information encrypted by a key which is only known by the server. The ticket is sent by the server at the end of the TLS handshake.
Which is a feature of stateless resumption in TLS?
The session ticket mechanism is referred to as the stateless resumption mechanism. The main improvement of stateless resumption is the removal of the server-side session cache, which simplifies deployment by requiring that the client provide the session ticket on every new connection to the server until the ticket has expired.
How long does a TLS resumption request last?
A session lasts for a predetermined period of time, from a few minutes up to several hours. If the browser revisits a server within the session window, the ongoing TLS session can resume via a single resumption request, instead of a full handshake negotiation.
Why does SSL session resumption work without interruption?
Now even with one or more faster-clock hosts, session resumption by ticket still works without interruption because they can still decrypt session tickets encrypted by any other. Also we set the session ticket lifetime hint to be 18 hours, the same value for SSL session timeout.