1. TLS 1.1

    Version 1.1 of the Transport Layer Security (TLS) protocol, made obsolete by [version 1.2](/tls1-2).

  2. TLS 1.2

    Version 1.2 of the Transport Layer Security (TLS) protocol. Allows for data/message confidentiality, and message authentication codes for message integrity and as a by-product message authentication.