| 9999 | Remote ATtestation procedureS (RATS) Conceptual Message Wrapper (CMW)H. Birkholz, N. Smith, T. Fossati, H. Tschofenig | Proposed Standard | July 2026 |
| 9883 | An Attribute for Statement of Possession of a Private KeyR. Housley | Proposed Standard | October 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 |
| 9802 | Use of the HSS and XMSS Hash-Based Signature Algorithms in Internet X.509 Public Key InfrastructureD. Van Geest, K. Bashiri, S. Fluhrer, S. Gazdag, S. Kousidis | Proposed Standard | June 2025 |
| 9773 | ACME Renewal Information (ARI) ExtensionA. Gable | Proposed Standard | June 2025 |
| 9608 | No Revocation Available for X.509 Public Key CertificatesR. Housley, T. Okubo, J. Mandel | Proposed Standard | June 2024 |
| 9483 | Lightweight Certificate Management Protocol (CMP) ProfileH. Brockhaus, D. von Oheimb, S. Fries | Proposed Standard | November 2023 |
| 9321 | Signature Validation TokenS. Santesson, R. Housley | Informational | October 2022 |
| 9060 | Secure Telephone Identity Revisited (STIR) Certificate DelegationJ. Peterson | Proposed Standard | September 2021 |
| 8659 | DNS Certification Authority Authorization (CAA) Resource RecordP. Hallam-Baker, R. Stradling, J. Hoffman-Andrews | Proposed Standard | November 2019 |
| 8226 | Secure Telephone Identity Credentials: CertificatesJ. Peterson, S. Turner | Proposed Standard | February 2018 |
| 7382 | Template for a Certification Practice Statement (CPS) for the Resource PKI (RPKI)S. Kent, D. Kong, K. Seo | Best Current Practice | April 2015 |
| 6844 | DNS Certification Authority Authorization (CAA) Resource RecordP. Hallam-Baker, R. Stradling · obsoleted by RFC 8659 | Proposed Standard | January 2013 |
| 6841 | A Framework for DNSSEC Policies and DNSSEC Practice StatementsF. Ljunggren, AM. Eklund Lowinder, T. Okubo | Informational | January 2013 |
| 6545 | Real-time Inter-network Defense (RID)K. Moriarty | Proposed Standard | April 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 |
| 6045 | Real-time Inter-network Defense (RID)K. Moriarty · obsoleted by RFC 6545 | Informational | November 2010 |
| 5217 | Memorandum for Multi-Domain Public Key Infrastructure InteroperabilityM. Shimaoka, Ed., N. Hastings, R. Nielsen | Informational | July 2008 |
| 4949 | Internet Security Glossary, Version 2R. Shirey | Informational | August 2007 |
| 4810 | Long-Term Archive Service RequirementsC. Wallace, U. Pordesch, R. Brandner | Informational | March 2007 |
| 4809 | Requirements for an IPsec Certificate Management ProfileC. Bonatti, Ed., S. Turner, Ed., G. Lebovitz, Ed. | Informational | February 2007 |
| 4504 | SIP Telephony Device Requirements and ConfigurationH. Sinnreich, Ed., S. Lass, C. Stredicke | Informational | May 2006 |