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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.
Where do I find the TLS ticket key?
The command specifies the path for the configuration file on the TLS server, and specifies that the TLS session use the password stored in $Password to access the configuration file and configure the key for the specified service account. The second command configures the session ticket key for the TLS server.
How does a server support a session ticket?
When a client supports Session Tickets, the server will encrypt the session key with a key only the server has, the Session Ticket Encryption Key (STEK), and send it to the client. The client holds on to that encrypted session key, called a ticket, and to the corresponding session key.
How are session keys generated in a TLS handshake?
During a TLS handshake, both client and server send each other random data, which they use to make calculations separately and then derive the same session keys. Three kinds of randomly generated data are sent from one side to the other: The “client random”: This is a random string of bytes that the client sends to the server.
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.
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.