| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2585 | Internet X.509 Public Key Infrastructure Operational Protocols: FTP and HTTPR. Housley, P. Hoffman | Proposed Standard | May 1999 |
| 3766 | Determining Strengths For Public Keys Used For Exchanging Symmetric KeysH. Orman, P. Hoffman | Best Current Practice | April 2004 |
| 4086 | Randomness Requirements for SecurityD. Eastlake 3rd, J. Schiller, S. Crocker | Best Current Practice | June 2005 |
| 4253 | The Secure Shell (SSH) Transport Layer ProtocolT. Ylonen, C. Lonvick, Ed. | Proposed Standard | January 2006 |
| 5273 | Certificate Management over CMS (CMC): Transport ProtocolsJ. Schaad, M. Myers · obsoleted by RFC 10003 | Proposed Standard | June 2008 |
| 5480 | Elliptic Curve Cryptography Subject Public Key InformationS. Turner, D. Brown, K. Yiu, R. Housley, T. Polk | Proposed Standard | March 2009 |
| 5647 | AES Galois Counter Mode for the Secure Shell Transport Layer ProtocolK. Igoe, J. Solinas | Informational | August 2009 |
| 5652 | Cryptographic Message Syntax (CMS)R. Housley | Internet Standard | September 2009 |
| 5656 | Elliptic Curve Algorithm Integration in the Secure Shell Transport LayerD. Stebila, J. Green | Proposed Standard | December 2009 |
| 5958 | Asymmetric Key PackagesS. Turner | Proposed Standard | August 2010 |
| 5967 | The application/pkcs10 Media TypeS. Turner | Informational | August 2010 |
| 6187 | X.509v3 Certificates for Secure Shell AuthenticationK. Igoe, D. Stebila | Proposed Standard | March 2011 |
| 6286 | Autonomous-System-Wide Unique BGP Identifier for BGP-4E. Chen, J. Yuan | Proposed Standard | June 2011 |
| 6470 | Network Configuration Protocol (NETCONF) Base NotificationsA. Bierman | Proposed Standard | February 2012 |
| 6484 | Certificate Policy (CP) for the Resource Public Key Infrastructure (RPKI)S. Kent, D. Kong, K. Seo, R. Watro | Best Current Practice | February 2012 |
| 6668 | SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer ProtocolD. Bider, M. Baushke | Proposed Standard | July 2012 |
| 7030 | Enrollment over Secure TransportM. Pritikin, Ed., P. Yee, Ed., D. Harkins, Ed. | Proposed Standard | October 2013 |
| 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 |
| 8205 | BGPsec Protocol SpecificationM. Lepinski, Ed., K. Sriram, Ed. | Proposed Standard | September 2017 |
| 8209 | A Profile for BGPsec Router Certificates, Certificate Revocation Lists, and Certification RequestsM. Reynolds, S. Turner, S. Kent | Proposed Standard | September 2017 |
| 8551 | Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Message SpecificationJ. Schaad, B. Ramsdell, S. Turner | Proposed Standard | April 2019 |
| 8608 | BGPsec Algorithms, Key Formats, and Signature FormatsS. Turner, O. Borchert | Proposed Standard | June 2019 |
| 8634 | BGPsec Router Certificate RolloverB. Weis, R. Gagliano, K. Patel | Best Current Practice | August 2019 |