Handshake – establishment of a connectionĪpplication – sending and receiving encrypted packets TLS works over TCP and consists of 3 phases: It runs in the application layer and is itself composed of two layers: the TLS record and the TLS handshake protocols. The TLS protocol aims primarily to provide cryptography, including privacy (confidentiality), integrity, and authenticity using certificates, between two or more communicating computer applications. The protocol is widely used in applications such as email, instant messaging, and voice over IP (VoIP), but its use in securing HTTPS remains the most publicly visible. Transport layer security (TLS) is a cryptographic protocol designed to provide communications security over a computer network.
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