| 4034 | Resource Records for the DNS Security ExtensionsR. Arends, R. Austein, M. Larson, D. Massey, S. Rose | Proposed Standard | March 2005 |
| 5652 | Cryptographic Message Syntax (CMS)R. Housley | Internet Standard | September 2009 |
| 6090 | Fundamental Elliptic Curve Cryptography AlgorithmsD. McGrew, K. Igoe, M. Salter | Informational | February 2011 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 8235 | Schnorr Non-interactive Zero-Knowledge ProofF. Hao, Ed. | Informational | September 2017 |
| 8391 | XMSS: eXtended Merkle Signature SchemeA. Huelsing, D. Butin, S. Gazdag, J. Rijneveld, A. Mohaisen | Informational | May 2018 |
| 8446 | The Transport Layer Security (TLS) Protocol Version 1.3E. Rescorla · obsoleted by RFC 9846 | Proposed Standard | August 2018 |
| 8554 | Leighton-Micali Hash-Based SignaturesD. McGrew, M. Curcio, S. Fluhrer | Informational | April 2019 |
| 9180 | Hybrid Public Key EncryptionR. Barnes, K. Bhargavan, B. Lipp, C. Wood | Informational | February 2022 |
| 9242 | Intermediate Exchange in the Internet Key Exchange Protocol Version 2 (IKEv2)V. Smyslov | Proposed Standard | May 2022 |
| 9370 | Multiple Key Exchanges in the Internet Key Exchange Protocol Version 2 (IKEv2)CJ. Tjhai, M. Tomlinson, G. Bartlett, S. Fluhrer, D. Van Geest, O. Garcia-Morchon, V. Smyslov | Proposed Standard | May 2023 |
| 9528 | Ephemeral Diffie-Hellman Over COSE (EDHOC)G. Selander, J. Preuß Mattsson, F. Palombini | Proposed Standard | March 2024 |
| 9763 | Related Certificates for Use in Multiple Authentications within a ProtocolA. Becker, R. Guthrie, M. Jenkins | Proposed Standard | June 2025 |
| 9794 | Terminology for Post-Quantum Traditional Hybrid SchemesF. Driscoll, M. Parsons, B. Hale | Informational | June 2025 |
| 9814 | Use of the SLH-DSA Signature Algorithm in the Cryptographic Message Syntax (CMS)R. Housley, S. Fluhrer, P. Kampanakis, B. Westerbaan | Proposed Standard | July 2025 |
| 9881 | Internet X.509 Public Key Infrastructure -- Algorithm Identifiers for the Module-Lattice-Based Digital Signature Algorithm (ML-DSA)J. Massimo, P. Kampanakis, S. Turner, B. E. Westerbaan | Proposed Standard | October 2025 |
| 9941 | Secure Shell (SSH) Key Exchange Method Using Hybrid Streamlined NTRU Prime sntrup761 and X25519 with SHA-512: sntrup761x25519-sha512M. Friedl, J. Mojzis, S. Josefsson | Informational | April 2026 |