A Performance Analysis of Secure HTTP Protocol

Data security plays an essential role in today’s web service. Secure HTTP (HTTPS) is one of the popular protocols to transfer sensitive data over the Internet. This paper shows how the security affects performance compared to HTTP. Based on our preliminary measurements, the average response time ranges from 0.1 to 5 seconds, and from 6 to 8 seconds, for HTTP and HTTPS, respectively. Our experiments also show that the HTTPS overhead mainly comes from clients other than servers.