| 2104 | HMAC: Keyed-Hashing for Message AuthenticationH. Krawczyk, M. Bellare, R. Canetti | Informational | February 1997 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 5246 | The Transport Layer Security (TLS) Protocol Version 1.2T. Dierks, E. Rescorla · obsoleted by RFC 8446, RFC 9846 | Proposed Standard | August 2008 |
| 5705 | Keying Material Exporters for Transport Layer Security (TLS)E. Rescorla | Proposed Standard | March 2010 |
| 6066 | Transport Layer Security (TLS) Extensions: Extension DefinitionsD. Eastlake 3rd | Proposed Standard | January 2011 |
| 6347 | Datagram Transport Layer Security Version 1.2E. Rescorla, N. Modadugu · obsoleted by RFC 9147 | Proposed Standard | January 2012 |
| 6960 | X.509 Internet Public Key Infrastructure Online Certificate Status Protocol - OCSPS. Santesson, M. Myers, R. Ankney, A. Malpani, S. Galperin, C. Adams | Proposed Standard | June 2013 |
| 6962 | Certificate TransparencyB. Laurie, A. Langley, E. Kasper · obsoleted by RFC 9162 | Experimental | June 2013 |
| 7250 | Using Raw Public Keys in Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)P. Wouters, Ed., H. Tschofenig, Ed., J. Gilmore, S. Weiler, T. Kivinen | Proposed Standard | June 2014 |
| 7627 | Transport Layer Security (TLS) Session Hash and Extended Master Secret ExtensionK. Bhargavan, Ed., A. Delignat-Lavaud, A. Pironti, A. Langley, M. Ray · obsoleted by RFC 9846 | Proposed Standard | September 2015 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 8174 | Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsB. Leiba | Best Current Practice | May 2017 |
| 8446 | The Transport Layer Security (TLS) Protocol Version 1.3E. Rescorla · obsoleted by RFC 9846 | Proposed Standard | August 2018 |
| 8447 | IANA Registry Updates for TLS and DTLSJ. Salowey, S. Turner | Proposed Standard | August 2018 |
| 9001 | Using TLS to Secure QUICM. Thomson, Ed., S. Turner, Ed. | Proposed Standard | May 2021 |
| 9113 | HTTP/2M. Thomson, Ed., C. Benfield, Ed. | Proposed Standard | June 2022 |
| 9147 | The Datagram Transport Layer Security (DTLS) Protocol Version 1.3E. Rescorla, H. Tschofenig, N. Modadugu | Proposed Standard | April 2022 |
| 9162 | Certificate Transparency Version 2.0B. Laurie, E. Messeri, R. Stradling | Experimental | December 2021 |