TLS and TCP handshakes require multiple round-trips, increasing latency and computational overhead.
A TCP handshake involves a three-step process to establish a connection, while a TLS handshake adds encryption setup. These processes involve multiple message exchanges, which increase latency. For instance, in a secure e-commerce transaction, setting up a TLS handshake ensures data security but also adds delay before data transfer can begin.
Additional Notes
Why are TLS and TCP handshakes considered expensive in networking?