| 1661 | The Point-to-Point Protocol (PPP)W. Simpson, Ed. | Internet Standard | July 1994 |
| 1796 | Not All RFCs are StandardsC. Huitema, J. Postel, S. Crocker | Informational | April 1995 |
| 1994 | PPP Challenge Handshake Authentication Protocol (CHAP)W. Simpson | Draft Standard | August 1996 |
| 2026 | The Internet Standards Process -- Revision 3S. Bradner | Best Current Practice | October 1996 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2243 | OTP Extended ResponsesC. Metz | Proposed Standard | November 1997 |
| 2289 | A One-Time Password SystemN. Haller, C. Metz, P. Nesser, M. Straw | Internet Standard | February 1998 |
| 2434 | Guidelines for Writing an IANA Considerations Section in RFCsT. Narten, H. Alvestrand · obsoleted by RFC 5226 | Best Current Practice | October 1998 |
| 2716 | PPP EAP TLS Authentication ProtocolB. Aboba, D. Simon · obsoleted by RFC 5216 | Experimental | October 1999 |
| 2898 | PKCS #5: Password-Based Cryptography Specification Version 2.0B. Kaliski · obsoleted by RFC 8018 | Informational | September 2000 |
| 2989 | Criteria for Evaluating AAA Protocols for Network AccessB. Aboba, P. Calhoun, S. Glass, T. Hiller, P. McCann, H. Shiino, P. Walsh, G. Zorn, G. Dommety, C. Perkins, B. Patil, D. Mitton, S. Manning, M. Beadles, X. Chen, S. Sivalingham, A. Hameed, M. Munson, S. Jacobs, B. Lim, B. Hirschman, R. Hsu, H. Koo, M. Lipford, E. Campbell, Y. Xu, S. Baba, E. Jaques | Informational | November 2000 |
| 3748 | Extensible Authentication Protocol (EAP)B. Aboba, L. Blunk, J. Vollbrecht, J. Carlson, H. Levkowetz, Ed. | Proposed Standard | June 2004 |
| 3932 | The IESG and RFC Editor Documents: ProceduresH. Alvestrand · obsoleted by RFC 5742 | Best Current Practice | October 2004 |
| 4086 | Randomness Requirements for SecurityD. Eastlake 3rd, J. Schiller, S. Crocker | Best Current Practice | June 2005 |
| 4186 | Extensible Authentication Protocol Method for Global System for Mobile Communications (GSM) Subscriber Identity Modules (EAP-SIM)H. Haverinen, Ed., J. Salowey, Ed. | Informational | January 2006 |
| 4187 | Extensible Authentication Protocol Method for 3rd Generation Authentication and Key Agreement (EAP-AKA)J. Arkko, H. Haverinen | Informational | January 2006 |
| 4279 | Pre-Shared Key Ciphersuites for Transport Layer Security (TLS)P. Eronen, Ed., H. Tschofenig, Ed. | Proposed Standard | December 2005 |
| 4282 | The Network Access IdentifierB. Aboba, M. Beadles, J. Arkko, P. Eronen · obsoleted by RFC 7542 | Proposed Standard | December 2005 |
| 4302 | IP Authentication HeaderS. Kent | Proposed Standard | December 2005 |