SSL Session Cache

Context: The Wormly SSL Tester identifies whether an HTTPS server supports SSL Session Caching.

The SSL specification supports the caching and reuse of an SSL session key in between subsequent requests from a client.

This improves performance from the clients’ perspective, because it eliminates the need for a new (and time-consuming) SSL handshake to be conducted each time a request is made.

Without a cached SSL session key (the symmetric key used to encrypt and decrypt communications made across the secure channel) a new key must be generated for each request.

Also see TLS Stateless Resume and HTTP Keepalive Support

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