| 10004 | Certificate Management over CMS (CMC): Compliance RequirementsJ. 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 |
| 9481 | Certificate Management Protocol (CMP) AlgorithmsH. Brockhaus, H. Aschauer, M. Ounsworth, J. Gray | Proposed Standard | November 2023 |
| 9206 | Commercial National Security Algorithm (CNSA) Suite Cryptography for Internet Protocol Security (IPsec)L. Corcoran, M. Jenkins | Informational | March 2022 |
| 8755 | Using Commercial National Security Algorithm Suite Algorithms in Secure/Multipurpose Internet Mail ExtensionsM. Jenkins | Informational | March 2020 |
| 8696 | Using Pre-Shared Key (PSK) in the Cryptographic Message Syntax (CMS)R. Housley | Proposed Standard | December 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 |
| 8061 | Locator/ID Separation Protocol (LISP) Data-Plane ConfidentialityD. Farinacci, B. Weis | Experimental | February 2017 |
| 7518 | JSON Web Algorithms (JWA)M. Jones | Proposed Standard | May 2015 |
| 6955 | Diffie-Hellman Proof-of-Possession AlgorithmsJ. Schaad, H. Prafullchandra | Proposed Standard | May 2013 |
| 6318 | Suite B in Secure/Multipurpose Internet Mail Extensions (S/MIME)R. Housley, J. Solinas | Historic | June 2011 |
| 6278 | Use of Static-Static Elliptic Curve Diffie-Hellman Key Agreement in Cryptographic Message SyntaxJ. Herzog, R. Khazan | Informational | June 2011 |
| 5753 | Use of Elliptic Curve Cryptography (ECC) Algorithms in Cryptographic Message Syntax (CMS)S. Turner, D. Brown | Informational | January 2010 |
| 5751 | Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.2 Message SpecificationB. Ramsdell, S. Turner · obsoleted by RFC 8551 | Proposed Standard | January 2010 |
| 5750 | Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.2 Certificate HandlingB. Ramsdell, S. Turner · obsoleted by RFC 8550 | Proposed Standard | January 2010 |
| 5683 | Password-Authenticated Key (PAK) Diffie-Hellman ExchangeA. Brusilovsky, I. Faynberg, Z. Zeltsan, S. Patel | Informational | February 2010 |
| 5652 | Cryptographic Message Syntax (CMS)R. Housley | Internet Standard | September 2009 |
| 5274 | Certificate Management Messages over CMS (CMC): Compliance RequirementsJ. Schaad, M. Myers · obsoleted by RFC 10004 | Proposed Standard | June 2008 |
| 5272 | Certificate Management over CMS (CMC)J. Schaad, M. Myers · obsoleted by RFC 10002 | Proposed Standard | June 2008 |
| 5114 | Additional Diffie-Hellman Groups for Use with IETF StandardsM. Lepinski, S. Kent | Informational | January 2008 |
| 5008 | Suite B in Secure/Multipurpose Internet Mail Extensions (S/MIME)R. Housley, J. Solinas · obsoleted by RFC 6318 | Historic | September 2007 |
| 4746 | Extensible Authentication Protocol (EAP) Password Authenticated ExchangeT. Clancy, W. Arbaugh | Informational | November 2006 |
| 4556 | Public Key Cryptography for Initial Authentication in Kerberos (PKINIT)L. Zhu, B. Tung | Proposed Standard | June 2006 |
| 4161 | Guidelines for Optional Services for Internet Fax GatewaysK. Mimura, K. Yokoyama, T. Satoh, K. Watanabe, C. Kanaide | Informational | September 2005 |
| 4160 | Internet Fax Gateway RequirementsK. Mimura, K. Yokoyama, T. Satoh, C. Kanaide, C. Allocchio | Informational | September 2005 |
| 4086 | Randomness Requirements for SecurityD. Eastlake 3rd, J. Schiller, S. Crocker | Best Current Practice | June 2005 |
| 4067 | Context Transfer Protocol (CXTP)J. Loughney, Ed., M. Nakhjiri, C. Perkins, R. Koodli | Experimental | July 2005 |
| 3871 | Operational Security Requirements for Large Internet Service Provider (ISP) IP Network InfrastructureG. Jones, Ed. | Informational | September 2004 |
| 3819 | Advice for Internet Subnetwork DesignersP. Karn, Ed., C. Bormann, G. Fairhurst, D. Grossman, R. Ludwig, J. Mahdavi, G. Montenegro, J. Touch, L. Wood | Best Current Practice | July 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 |
| 3565 | Use of the Advanced Encryption Standard (AES) Encryption Algorithm in Cryptographic Message Syntax (CMS)J. Schaad | Proposed Standard | July 2003 |
| 3370 | Cryptographic Message Syntax (CMS) AlgorithmsR. Housley | Proposed Standard | September 2002 |
| 2785 | Methods for Avoiding the "Small-Subgroup" Attacks on the Diffie-Hellman Key Agreement Method for S/MIMER. Zuccherato | Informational | March 2000 |
| 2633 | S/MIME Version 3 Message SpecificationB. Ramsdell, Ed. · obsoleted by RFC 3851 | Proposed Standard | June 1999 |
| 2630 | Cryptographic Message SyntaxR. Housley · obsoleted by RFC 3369, RFC 3370 | Proposed Standard | June 1999 |