13 SSL/TLS and SSH
The concepts in TLS (Transport Layer Security) have been covered in Chapter 11 Communication Session Establishment, and the concepts are similar to IPsec. Alice and Bob authenticate and establish cryptographic keys for the session.
TLS grew out of Netscape’s SSL (Secure Sockets Layer) protocol. When the IETF took it over to improve and standardize it, they renamed it TLS (Transport Layer Security). Since being called TLS, it has gone through three revisions, so the latest version is 1.3 (RFC 8446). There is no real logic to why the TLS versions were named TLS 1.0, TLS 1.1, TLS 1.2, and TLS 1.3 rather than TLS version 1, TLS version 2, TLS version 3, and TLS version 4 or even why TLS 1.0 was not named SSL version 4. Most of ...
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