| 10031 | Media Access Control (MAC) Addresses in X.509 CertificatesR. Housley, C. Bonnell, J. Mandel, T. Okubo, M. StJohns | Proposed Standard | August 2026 |
| 10007 | Clarification to Processing Key Usage Values During Certificate Revocation List (CRL) ValidationC. Bonnell, T. Ito, T. Okubo | Proposed Standard | June 2026 |
| 10004 | Certificate Management over CMS (CMC): Compliance RequirementsJ. Mandel, Ed., S. Turner, Ed. | Proposed Standard | July 2026 |
| 10003 | Certificate Management over CMS (CMC): Transport ProtocolsJ. Mandel, Ed., S. Turner, Ed. | Proposed Standard | July 2026 |
| 10002 | Certificate Management over CMS (CMC)J. Mandel, Ed., S. Turner, Ed. | Proposed Standard | July 2026 |
| 9939 | PKCS #8: Private-Key Information Content TypesJ. Mandel, R. Housley, S. Turner | Proposed Standard | February 2026 |
| 9936 | Use of ML-KEM in the Cryptographic Message Syntax (CMS)J. Prat, M. Ounsworth, D. Van Geest | Proposed Standard | March 2026 |
| 9935 | Internet X.509 Public Key Infrastructure - Algorithm Identifiers for the Module-Lattice-Based Key-Encapsulation Mechanism (ML-KEM)S. Turner, P. Kampanakis, J. Massimo, B. E. Westerbaan | Proposed Standard | March 2026 |
| 9925 | Unsigned X.509 CertificatesD. Benjamin | Proposed Standard | February 2026 |
| 9919 | The Lightweight Online Certificate Status Protocol (OCSP) Profile for High-Volume EnvironmentsT. Ito, C. Wilson, C. Bonnell, S. Turner | Proposed Standard | July 2026 |
| 9909 | Internet X.509 Public Key Infrastructure -- Algorithm Identifiers for the Stateless Hash-Based Digital Signature Algorithm (SLH-DSA)K. Bashiri, S. Fluhrer, S. Gazdag, D. Van Geest, S. Kousidis | Proposed Standard | December 2025 |
| 9908 | Clarification and Enhancement of the CSR Attributes Definition in RFC 7030M. Richardson, Ed., O. Friel, D. von Oheimb, D. Harkins | Proposed Standard | January 2026 |
| 9883 | An Attribute for Statement of Possession of a Private KeyR. Housley | Proposed Standard | October 2025 |
| 9882 | Use of the ML-DSA Signature Algorithm in the Cryptographic Message Syntax (CMS)B. Salter, A. Raine, D. Van Geest | 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 |
| 9879 | Use of Password-Based Message Authentication Code 1 (PBMAC1) in PKCS #12 SyntaxA. Kario | Informational | September 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 |
| 9811 | Internet X.509 Public Key Infrastructure -- HTTP Transfer for the Certificate Management Protocol (CMP)H. Brockhaus, D. von Oheimb, M. Ounsworth, J. Gray | Proposed Standard | July 2025 |
| 9810 | Internet X.509 Public Key Infrastructure -- Certificate Management Protocol (CMP)H. Brockhaus, D. von Oheimb, M. Ounsworth, J. Gray | Proposed Standard | July 2025 |
| 9809 | X.509 Certificate Extended Key Usage (EKU) for Configuration, Updates, and Safety-Critical CommunicationH. Brockhaus, D. Goltzsche | Proposed Standard | July 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 |
| 9788 | Header Protection for Cryptographically Protected EmailD. K. Gillmor, B. Hoeneisen, A. Melnikov | Proposed Standard | August 2025 |
| 9787 | Guidance on End-to-End Email SecurityD. K. Gillmor, Ed., A. Melnikov, Ed., B. Hoeneisen, Ed. | Informational | August 2025 |
| 9763 | Related Certificates for Use in Multiple Authentications within a ProtocolA. Becker, R. Guthrie, M. Jenkins | Proposed Standard | June 2025 |
| 9734 | X.509 Certificate Extended Key Usage (EKU) for Instant Messaging URIsR. Mahy | Proposed Standard | February 2025 |
| 9709 | Encryption Key Derivation in the Cryptographic Message Syntax (CMS) Using HKDF with SHA-256R. Housley | Proposed Standard | January 2025 |
| 9708 | Use of the HSS/LMS Hash-Based Signature Algorithm in the Cryptographic Message Syntax (CMS)R. Housley | Proposed Standard | January 2025 |
| 9690 | Use of the RSA-KEM Algorithm in the Cryptographic Message Syntax (CMS)R. Housley, S. Turner | Proposed Standard | February 2025 |
| 9688 | Use of the SHA3 One-Way Hash Functions in the Cryptographic Message Syntax (CMS)R. Housley | Proposed Standard | November 2024 |
| 9654 | Online Certificate Status Protocol (OCSP) Nonce ExtensionH. Sharma, Ed. | Proposed Standard | August 2024 |
| 9629 | Using Key Encapsulation Mechanism (KEM) Algorithms in the Cryptographic Message Syntax (CMS)R. Housley, J. Gray, T. Okubo | Proposed Standard | August 2024 |
| 9618 | Updates to X.509 Policy ValidationD. Benjamin | Proposed Standard | August 2024 |
| 9608 | No Revocation Available for X.509 Public Key CertificatesR. Housley, T. Okubo, J. Mandel | Proposed Standard | June 2024 |
| 9598 | Internationalized Email Addresses in X.509 CertificatesA. Melnikov, W. Chuang, C. Bonnell | Proposed Standard | May 2024 |
| 9579 | Use of Password-Based Message Authentication Code 1 (PBMAC1) in PKCS #12 SyntaxH. Kario · obsoleted by RFC 9879 | Informational | May 2024 |
| 9549 | Internationalization Updates to RFC 5280R. Housley | Proposed Standard | March 2024 |
| 9509 | X.509 Certificate Extended Key Usage (EKU) for 5G Network FunctionsT. Reddy.K, J. Ekman, D. Migault | Proposed Standard | March 2024 |
| 9495 | Certification Authority Authorization (CAA) Processing for Email AddressesC. Bonnell | Proposed Standard | October 2023 |
| 9483 | Lightweight Certificate Management Protocol (CMP) ProfileH. Brockhaus, D. von Oheimb, S. Fries | Proposed Standard | November 2023 |
| 9481 | Certificate Management Protocol (CMP) AlgorithmsH. Brockhaus, H. Aschauer, M. Ounsworth, J. Gray | Proposed Standard | November 2023 |
| 9480 | Certificate Management Protocol (CMP) UpdatesH. Brockhaus, D. von Oheimb, J. Gray · obsoleted by RFC 9810, RFC 9811 | Proposed Standard | November 2023 |
| 9399 | Internet X.509 Public Key Infrastructure: Logotypes in X.509 CertificatesS. Santesson, R. Housley, T. Freeman, L. Rosenthol | Proposed Standard | May 2023 |
| 9336 | X.509 Certificate General-Purpose Extended Key Usage (EKU) for Document SigningT. Ito, T. Okubo, S. Turner | Proposed Standard | December 2022 |
| 9310 | X.509 Certificate Extension for 5G Network Function TypesR. Housley, S. Turner, J. Preuß Mattsson, D. Migault | Proposed Standard | January 2023 |
| 9295 | Clarifications for Ed25519, Ed448, X25519, and X448 Algorithm IdentifiersS. Turner, S. Josefsson, D. McCarney, T. Ito | Proposed Standard | September 2022 |
| 9216 | S/MIME Example Keys and CertificatesD. K. Gillmor, Ed. | Informational | April 2022 |
| 9158 | Update to the Object Identifier Registry for the PKIX Working GroupR. Housley | Informational | November 2021 |
| 9045 | Algorithm Requirements Update to the Internet X.509 Public Key Infrastructure Certificate Request Message Format (CRMF)R. Housley | Proposed Standard | June 2021 |
| 9044 | Using the AES-GMAC Algorithm with the Cryptographic Message Syntax (CMS)R. Housley | Proposed Standard | June 2021 |
| 8954 | Online Certificate Status Protocol (OCSP) Nonce ExtensionM. Sahni, Ed. · obsoleted by RFC 9654 | Proposed Standard | November 2020 |
| 8951 | Clarification of Enrollment over Secure Transport (EST): Transfer Encodings and ASN.1M. Richardson, T. Werner, W. Pan | Proposed Standard | November 2020 |
| 8933 | Update to the Cryptographic Message Syntax (CMS) for Algorithm Identifier ProtectionR. Housley | Proposed Standard | October 2020 |
| 8813 | Clarifications for Elliptic Curve Cryptography Subject Public Key InformationT. Ito, S. Turner | Proposed Standard | August 2020 |
| 8708 | Use of the HSS/LMS Hash-Based Signature Algorithm in the Cryptographic Message Syntax (CMS)R. Housley · obsoleted by RFC 9708 | Proposed Standard | February 2020 |
| 8702 | Use of the SHAKE One-Way Hash Functions in the Cryptographic Message Syntax (CMS)P. Kampanakis, Q. Dang | Proposed Standard | January 2020 |
| 8696 | Using Pre-Shared Key (PSK) in the Cryptographic Message Syntax (CMS)R. Housley | Proposed Standard | December 2019 |
| 8692 | Internet X.509 Public Key Infrastructure: Additional Algorithm Identifiers for RSASSA-PSS and ECDSA Using SHAKEsP. Kampanakis, Q. Dang | Proposed Standard | December 2019 |
| 8659 | DNS Certification Authority Authorization (CAA) Resource RecordP. Hallam-Baker, R. Stradling, J. Hoffman-Andrews | Proposed Standard | November 2019 |
| 8649 | Hash Of Root Key Certificate ExtensionR. Housley | Informational | August 2019 |
| 8551 | Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Message SpecificationJ. Schaad, B. Ramsdell, S. Turner | Proposed Standard | April 2019 |
| 8550 | Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Certificate HandlingJ. Schaad, B. Ramsdell, S. Turner | Proposed Standard | April 2019 |
| 8399 | Internationalization Updates to RFC 5280R. Housley · obsoleted by RFC 9549 | Proposed Standard | May 2018 |
| 8398 | Internationalized Email Addresses in X.509 CertificatesA. Melnikov, Ed., W. Chuang, Ed. · obsoleted by RFC 9598 | Proposed Standard | May 2018 |