| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 3688 | The IETF XML RegistryM. Mealling | Best Current Practice | January 2004 |
| 4252 | The Secure Shell (SSH) Authentication ProtocolT. Ylonen, C. Lonvick, Ed. | Proposed Standard | January 2006 |
| 5246 | The Transport Layer Security (TLS) Protocol Version 1.2T. Dierks, E. Rescorla · obsoleted by RFC 8446, RFC 9846 | Proposed Standard | August 2008 |
| 6020 | YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)M. Bjorklund, Ed. | Proposed Standard | October 2010 |
| 6066 | Transport Layer Security (TLS) Extensions: Extension DefinitionsD. Eastlake 3rd | Proposed Standard | January 2011 |
| 6241 | Network Configuration Protocol (NETCONF)R. Enns, Ed., M. Bjorklund, Ed., J. Schoenwaelder, Ed., A. Bierman, Ed. | Proposed Standard | June 2011 |
| 6347 | Datagram Transport Layer Security Version 1.2E. Rescorla, N. Modadugu · obsoleted by RFC 9147 | Proposed Standard | January 2012 |
| 7301 | Transport Layer Security (TLS) Application-Layer Protocol Negotiation ExtensionS. Friedl, A. Popov, A. Langley, E. Stephan | Proposed Standard | July 2014 |
| 7366 | Encrypt-then-MAC for Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)P. Gutmann | Proposed Standard | September 2014 |
| 7469 | Public Key Pinning Extension for HTTPC. Evans, C. Palmer, R. Sleevi | Proposed Standard | April 2015 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 7858 | Specification for DNS over Transport Layer Security (TLS)Z. Hu, L. Zhu, J. Heidemann, A. Mankin, D. Wessels, P. Hoffman | Proposed Standard | May 2016 |
| 7925 | Transport Layer Security (TLS) / Datagram Transport Layer Security (DTLS) Profiles for the Internet of ThingsH. Tschofenig, Ed., T. Fossati | Proposed Standard | July 2016 |
| 7951 | JSON Encoding of Data Modeled with YANGL. Lhotka | Proposed Standard | August 2016 |
| 8040 | RESTCONF ProtocolA. Bierman, M. Bjorklund, K. Watsen | Proposed Standard | January 2017 |
| 8126 | Guidelines for Writing an IANA Considerations Section in RFCsM. Cotton, B. Leiba, T. Narten | Best Current Practice | June 2017 |
| 8174 | Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsB. Leiba | Best Current Practice | May 2017 |
| 8340 | YANG Tree DiagramsM. Bjorklund, L. Berger, Ed. | Best Current Practice | March 2018 |
| 8341 | Network Configuration Access Control ModelA. Bierman, M. Bjorklund | Internet Standard | March 2018 |
| 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 |
| 8472 | Transport Layer Security (TLS) Extension for Token Binding Protocol NegotiationA. Popov, Ed., M. Nystroem, D. Balfanz | Proposed Standard | October 2018 |
| 8484 | DNS Queries over HTTPS (DoH)P. Hoffman, P. McManus | Proposed Standard | October 2018 |
| 8519 | YANG Data Model for Network Access Control Lists (ACLs)M. Jethanandani, S. Agarwal, L. Huang, D. Blair | Proposed Standard | March 2019 |
| 8520 | Manufacturer Usage Description SpecificationE. Lear, R. Droms, D. Romascanu | Proposed Standard | March 2019 |
| 8576 | Internet of Things (IoT) Security: State of the Art and ChallengesO. Garcia-Morchon, S. Kumar, M. Sethi | Informational | April 2019 |
| 8613 | Object Security for Constrained RESTful Environments (OSCORE)G. Selander, J. Mattsson, F. Palombini, L. Seitz | Proposed Standard | July 2019 |
| 8701 | Applying Generate Random Extensions And Sustain Extensibility (GREASE) to TLS ExtensibilityD. Benjamin | Informational | January 2020 |
| 8879 | TLS Certificate CompressionA. Ghedini, V. Vasiliev | Proposed Standard | December 2020 |
| 9000 | QUIC: A UDP-Based Multiplexed and Secure TransportJ. Iyengar, Ed., M. Thomson, Ed. | Proposed Standard | May 2021 |
| 9052 | CBOR Object Signing and Encryption (COSE): Structures and ProcessJ. Schaad | Internet Standard | August 2022 |
| 9147 | The Datagram Transport Layer Security (DTLS) Protocol Version 1.3E. Rescorla, H. Tschofenig, N. Modadugu | Proposed Standard | April 2022 |
| 9325 | Recommendations for Secure Use of Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)Y. Sheffer, P. Saint-Andre, T. Fossati | Best Current Practice | November 2022 |
| 9462 | Discovery of Designated ResolversT. Pauly, E. Kinnear, C. A. Wood, P. McManus, T. Jensen | Proposed Standard | November 2023 |
| 9463 | DHCP and Router Advertisement Options for the Discovery of Network-designated Resolvers (DNR)M. Boucadair, Ed., T. Reddy.K, Ed., D. Wing, N. Cook, T. Jensen | Proposed Standard | November 2023 |
| 9640 | YANG Data Types and Groupings for CryptographyK. Watsen | Proposed Standard | October 2024 |