| 9190 | EAP-TLS 1.3: Using the Extensible Authentication Protocol with TLS 1.3J. Preuß Mattsson, M. Sethi | Proposed Standard | February 2022 |
| 7299 | Object Identifier Registry for the PKIX Working GroupR. Housley | Informational | July 2014 |
| 6962 | Certificate TransparencyB. Laurie, A. Langley, E. Kasper · obsoleted by RFC 9162 | Experimental | June 2013 |
| 6961 | The Transport Layer Security (TLS) Multiple Certificate Status Request ExtensionY. Pettersen · obsoleted by RFC 8446, RFC 9846 | Proposed Standard | June 2013 |
| 6960 | X.509 Internet Public Key Infrastructure Online Certificate Status Protocol - OCSPS. Santesson, M. Myers, R. Ankney, A. Malpani, S. Galperin, C. Adams | Proposed Standard | June 2013 |
| 6797 | HTTP Strict Transport Security (HSTS)J. Hodges, C. Jackson, A. Barth | Proposed Standard | November 2012 |
| 6678 | Requirements for a Tunnel-Based Extensible Authentication Protocol (EAP) MethodK. Hoeper, S. Hanna, H. Zhou, J. Salowey, Ed. | Informational | July 2012 |
| 6494 | Certificate Profile and Certificate Management for SEcure Neighbor Discovery (SEND)R. Gagliano, S. Krishnan, A. Kukec | 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 |
| 6283 | Extensible Markup Language Evidence Record Syntax (XMLERS)A. Jerman Blazic, S. Saljic, T. Gondrom | Proposed Standard | July 2011 |
| 6277 | Online Certificate Status Protocol Algorithm AgilityS. Santesson, P. Hallam-Baker · obsoleted by RFC 6960 | Proposed Standard | June 2011 |
| 6272 | Internet Protocols for the Smart GridF. Baker, D. Meyer | Informational | June 2011 |
| 6216 | Example Call Flows Using Session Initiation Protocol (SIP) Security MechanismsC. Jennings, K. Ono, R. Sparks, B. Hibbard, Ed. | Informational | April 2011 |
| 6187 | X.509v3 Certificates for Secure Shell AuthenticationK. Igoe, D. Stebila | Proposed Standard | March 2011 |
| 6125 | Representation and Verification of Domain-Based Application Service Identity within Internet Public Key Infrastructure Using X.509 (PKIX) Certificates in the Context of Transport Layer Security (TLS)P. Saint-Andre, J. Hodges · obsoleted by RFC 9525 | Proposed Standard | March 2011 |
| 6120 | Extensible Messaging and Presence Protocol (XMPP): CoreP. Saint-Andre | Proposed Standard | March 2011 |
| 6066 | Transport Layer Security (TLS) Extensions: Extension DefinitionsD. Eastlake 3rd | Proposed Standard | January 2011 |
| 6025 | ASN.1 TranslationC. Wallace, C. Gardiner | Informational | October 2010 |
| 6024 | Trust Anchor Management RequirementsR. Reddy, C. Wallace | Informational | October 2010 |
| 5940 | Additional Cryptographic Message Syntax (CMS) Revocation Information ChoicesS. Turner, R. Housley | Proposed Standard | August 2010 |
| 5912 | New ASN.1 Modules for the Public Key Infrastructure Using X.509 (PKIX)P. Hoffman, J. Schaad | Informational | June 2010 |
| 5755 | An Internet Attribute Certificate Profile for AuthorizationS. Farrell, R. Housley, S. Turner | Proposed Standard | January 2010 |
| 5698 | Data Structure for the Security Suitability of Cryptographic Algorithms (DSSC)T. Kunz, S. Okunick, U. Pordesch | Proposed Standard | November 2009 |
| 5652 | Cryptographic Message Syntax (CMS)R. Housley | Internet Standard | September 2009 |
| 5636 | Traceable Anonymous CertificateS. Park, H. Park, Y. Won, J. Lee, S. Kent | Experimental | August 2009 |
| 5281 | Extensible Authentication Protocol Tunneled Transport Layer Security Authenticated Protocol Version 0 (EAP-TTLSv0)P. Funk, S. Blake-Wilson | Informational | August 2008 |
| 5280 | Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) ProfileD. Cooper, S. Santesson, S. Farrell, S. Boeyen, R. Housley, W. Polk | Proposed Standard | May 2008 |
| 5216 | The EAP-TLS Authentication ProtocolD. Simon, B. Aboba, R. Hurst | Proposed Standard | March 2008 |
| 5126 | CMS Advanced Electronic Signatures (CAdES)D. Pinkas, N. Pope, J. Ross | Informational | March 2008 |
| 5055 | Server-Based Certificate Validation Protocol (SCVP)T. Freeman, R. Housley, A. Malpani, D. Cooper, W. Polk | Proposed Standard | December 2007 |
| 5019 | The Lightweight Online Certificate Status Protocol (OCSP) Profile for High-Volume EnvironmentsA. Deacon, R. Hurst · obsoleted by RFC 9919 | Proposed Standard | September 2007 |
| 4949 | Internet Security Glossary, Version 2R. Shirey | Informational | August 2007 |
| 4945 | The Internet IP Security PKI Profile of IKEv1/ISAKMP, IKEv2, and PKIXB. Korver | Proposed Standard | August 2007 |
| 4806 | Online Certificate Status Protocol (OCSP) Extensions to IKEv2M. Myers, H. Tschofenig | Proposed Standard | February 2007 |
| 4738 | MIKEY-RSA-R: An Additional Mode of Key Distribution in Multimedia Internet KEYing (MIKEY)D. Ignjatic, L. Dondeti, F. Audet, P. Lin | Proposed Standard | November 2006 |
| 4650 | HMAC-Authenticated Diffie-Hellman for Multimedia Internet KEYing (MIKEY)M. Euchner | Proposed Standard | September 2006 |
| 4557 | Online Certificate Status Protocol (OCSP) Support for Public Key Cryptography for Initial Authentication in Kerberos (PKINIT)L. Zhu, K. Jaganathan, N. Williams | Proposed Standard | June 2006 |
| 4386 | Internet X.509 Public Key Infrastructure Repository Locator ServiceS. Boeyen, P. Hallam-Baker | Experimental | February 2006 |
| 4366 | Transport Layer Security (TLS) ExtensionsS. Blake-Wilson, M. Nystrom, D. Hopwood, J. Mikkelsen, T. Wright · obsoleted by RFC 5246, RFC 6066 | Proposed Standard | April 2006 |
| 4230 | RSVP Security PropertiesH. Tschofenig, R. Graveman | Informational | December 2005 |
| 4158 | Internet X.509 Public Key Infrastructure: Certification Path BuildingM. Cooper, Y. Dzambasow, P. Hesse, S. Joseph, R. Nicholas | Informational | September 2005 |
| 4108 | Using Cryptographic Message Syntax (CMS) to Protect Firmware PackagesR. Housley | Proposed Standard | August 2005 |
| 3852 | Cryptographic Message Syntax (CMS)R. Housley · obsoleted by RFC 5652 | Proposed Standard | July 2004 |
| 3830 | MIKEY: Multimedia Internet KEYingJ. Arkko, E. Carrara, F. Lindholm, M. Naslund, K. Norrman | Proposed Standard | August 2004 |
| 3792 | Survey of IPv4 Addresses in Currently Deployed IETF Security Area Standards Track and Experimental DocumentsP. Nesser, II, A. Bergstrom, Ed. | Informational | June 2004 |
| 3788 | Security Considerations for Signaling Transport (SIGTRAN) ProtocolsJ. Loughney, M. Tuexen, Ed., J. Pastor-Balbas | Proposed Standard | June 2004 |
| 3647 | Internet X.509 Public Key Infrastructure Certificate Policy and Certification Practices FrameworkS. Chokhani, W. Ford, R. Sabett, C. Merrill, S. Wu | Informational | November 2003 |
| 3546 | Transport Layer Security (TLS) ExtensionsS. Blake-Wilson, M. Nystrom, D. Hopwood, J. Mikkelsen, T. Wright · obsoleted by RFC 4366 | Proposed Standard | June 2003 |
| 3379 | Delegated Path Validation and Delegated Path Discovery Protocol RequirementsD. Pinkas, R. Housley | Informational | September 2002 |
| 3281 | An Internet Attribute Certificate Profile for AuthorizationS. Farrell, R. Housley · obsoleted by RFC 5755 | Proposed Standard | May 2002 |
| 3280 | Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) ProfileR. Housley, W. Polk, W. Ford, D. Solo · obsoleted by RFC 5280 | Proposed Standard | May 2002 |
| 3126 | Electronic Signature Formats for long term electronic signaturesD. Pinkas, J. Ross, N. Pope · obsoleted by RFC 5126 | Informational | September 2001 |
| 3125 | Electronic Signature PoliciesJ. Ross, D. Pinkas, N. Pope | Experimental | September 2001 |
| 3029 | Internet X.509 Public Key Infrastructure Data Validation and Certification Server ProtocolsC. Adams, P. Sylvester, M. Zolotarev, R. Zuccherato | Experimental | February 2001 |