SSL handshake latency and HTTPS optimizations.

At work today, I started investigating the latency differences for similar requests between HTTP and HTTPS. Historically, I was running with the assumption that higher latency on HTTPS (SSL) traffic was to be expected since SSL handshakes are more CPU intensive. I didn’t really think about the network consequences of SSL until today. It’s all in the handshake. TCP handshake is a 3-packet event. The client sends 2 packets, the server sends 1.
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SSL handshake latency and HTTPS optimizations.

At work today, I started investigating the latency differences for similar requests between HTTP and HTTPS. Historically, I was running with the assumption that higher latency on HTTPS (SSL) traffic was to be expected since SSL handshakes are more CPU intensive. I didn’t really think about the network consequences of SSL until today. It’s all in the handshake. TCP handshake is a 3-packet event. The client sends 2 packets, the server sends 1.
Read more...