| 9846 | The Transport Layer Security (TLS) Protocol Version 1.3E. Rescorla | Proposed Standard | July 2026 |
| 9325 | Recommendations for Secure Use of Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)Y. Sheffer, P. Saint-Andre, T. Fossati | Best Current Practice | November 2022 |
| 9190 | EAP-TLS 1.3: Using the Extensible Authentication Protocol with TLS 1.3J. Preuß Mattsson, M. Sethi | Proposed Standard | February 2022 |
| 8996 | Deprecating TLS 1.0 and TLS 1.1K. Moriarty, S. Farrell | Best Current Practice | March 2021 |
| 8744 | Issues and Requirements for Server Name Identification (SNI) Encryption in TLSC. Huitema | Informational | July 2020 |
| 8422 | Elliptic Curve Cryptography (ECC) Cipher Suites for Transport Layer Security (TLS) Versions 1.2 and EarlierY. Nir, S. Josefsson, M. Pegourie-Gonnard · obsoleted by RFC 9846 | Proposed Standard | August 2018 |
| 7919 | Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)D. Gillmor | Proposed Standard | August 2016 |
| 7733 | Applicability Statement: The Use of the Routing Protocol for Low-Power and Lossy Networks (RPL) Protocol Suite in Home Automation and Building ControlA. Brandt, E. Baccelli, R. Cragie, P. van der Stok | Proposed Standard | February 2016 |
| 7568 | Deprecating Secure Sockets Layer Version 3.0R. Barnes, M. Thomson, A. Pironti, A. Langley | Proposed Standard | June 2015 |
| 7562 | Transport Layer Security (TLS) Authorization Using Digital Transmission Content Protection (DTCP) CertificatesD. Thakore | Informational | July 2015 |
| 7525 | Recommendations for Secure Use of Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)Y. Sheffer, R. Holz, P. Saint-Andre · obsoleted by RFC 9325 | Best Current Practice | May 2015 |
| 7507 | TLS Fallback Signaling Cipher Suite Value (SCSV) for Preventing Protocol Downgrade AttacksB. Moeller, A. Langley · obsoleted by RFC 8996 | Proposed Standard | April 2015 |
| 7465 | Prohibiting RC4 Cipher SuitesA. Popov | Proposed Standard | February 2015 |
| 6876 | A Posture Transport Protocol over TLS (PT-TLS)P. Sangster, N. Cam-Winget, J. Salowey | Proposed Standard | February 2013 |
| 6750 | The OAuth 2.0 Authorization Framework: Bearer Token UsageM. Jones, D. Hardt | Proposed Standard | October 2012 |
| 6749 | The OAuth 2.0 Authorization FrameworkD. Hardt, Ed. | Proposed Standard | October 2012 |
| 6739 | Synchronizing Service Boundaries and <mapping> Elements Based on the Location-to-Service Translation (LoST) ProtocolH. Schulzrinne, H. Tschofenig | Experimental | October 2012 |
| 6709 | Design Considerations for Protocol ExtensionsB. Carpenter, B. Aboba, Ed., S. Cheshire | Informational | September 2012 |
| 6460 | Suite B Profile for Transport Layer Security (TLS)M. Salter, R. Housley | Historic | January 2012 |
| 6367 | Addition of the Camellia Cipher Suites to Transport Layer Security (TLS)S. Kanno, M. Kanda | Informational | September 2011 |
| 6347 | Datagram Transport Layer Security Version 1.2E. Rescorla, N. Modadugu · obsoleted by RFC 9147 | Proposed Standard | January 2012 |
| 6176 | Prohibiting Secure Sockets Layer (SSL) Version 2.0S. Turner, T. Polk | Proposed Standard | March 2011 |
| 6066 | Transport Layer Security (TLS) Extensions: Extension DefinitionsD. Eastlake 3rd | Proposed Standard | January 2011 |
| 6042 | Transport Layer Security (TLS) Authorization Using KeyNoteA. Keromytis | Informational | October 2010 |
| 5971 | GIST: General Internet Signalling TransportH. Schulzrinne, R. Hancock | Experimental | October 2010 |
| 5878 | Transport Layer Security (TLS) Authorization ExtensionsM. Brown, R. Housley | Experimental | May 2010 |
| 5734 | Extensible Provisioning Protocol (EPP) Transport over TCPS. Hollenbeck | Internet Standard | August 2009 |
| 5469 | DES and IDEA Cipher Suites for Transport Layer Security (TLS)P. Eronen, Ed. · obsoleted by RFC 8996 | Historic | February 2009 |
| 5430 | Suite B Profile for Transport Layer Security (TLS)M. Salter, E. Rescorla, R. Housley · obsoleted by RFC 6460 | Historic | March 2009 |
| 5422 | Dynamic Provisioning Using Flexible Authentication via Secure Tunneling Extensible Authentication Protocol (EAP-FAST)N. Cam-Winget, D. McGrew, J. Salowey, H. Zhou | Informational | March 2009 |
| 5281 | Extensible Authentication Protocol Tunneled Transport Layer Security Authenticated Protocol Version 0 (EAP-TTLSv0)P. Funk, S. Blake-Wilson | Informational | August 2008 |
| 5246 | The Transport Layer Security (TLS) Protocol Version 1.2T. Dierks, E. Rescorla · obsoleted by RFC 8446, RFC 9846 | Proposed Standard | August 2008 |
| 5114 | Additional Diffie-Hellman Groups for Use with IETF StandardsM. Lepinski, S. Kent | Informational | January 2008 |
| 5077 | Transport Layer Security (TLS) Session Resumption without Server-Side StateJ. Salowey, H. Zhou, P. Eronen, H. Tschofenig · obsoleted by RFC 8446, RFC 9846 | Proposed Standard | January 2008 |
| 5023 | The Atom Publishing ProtocolJ. Gregorio, Ed., B. de hOra, Ed. | Proposed Standard | October 2007 |
| 4934 | Extensible Provisioning Protocol (EPP) Transport Over TCPS. Hollenbeck · obsoleted by RFC 5734 | Draft Standard | May 2007 |
| 4851 | The Flexible Authentication via Secure Tunneling Extensible Authentication Protocol Method (EAP-FAST)N. Cam-Winget, D. McGrew, J. Salowey, H. Zhou | Informational | May 2007 |
| 4791 | Calendaring Extensions to WebDAV (CalDAV)C. Daboo, B. Desruisseaux, L. Dusseault | Proposed Standard | March 2007 |
| 4681 | TLS User Mapping ExtensionS. Santesson, A. Medvinsky, J. Ball | Proposed Standard | October 2006 |
| 4680 | TLS Handshake Message for Supplemental DataS. Santesson | Proposed Standard | October 2006 |
| 4656 | A One-way Active Measurement Protocol (OWAMP)S. Shalunov, B. Teitelbaum, A. Karp, J. Boote, M. Zekauskas | Proposed Standard | September 2006 |
| 4568 | Session Description Protocol (SDP) Security Descriptions for Media StreamsF. Andreasen, M. Baugher, D. Wing | Proposed Standard | July 2006 |
| 4507 | Transport Layer Security (TLS) Session Resumption without Server-Side StateJ. Salowey, H. Zhou, P. Eronen, H. Tschofenig · obsoleted by RFC 5077 | Proposed Standard | May 2006 |
| 4492 | Elliptic Curve Cryptography (ECC) Cipher Suites for Transport Layer Security (TLS)S. Blake-Wilson, N. Bolyard, V. Gupta, C. Hawk, B. Moeller · obsoleted by RFC 8422 | Informational | May 2006 |
| 4398 | Storing Certificates in the Domain Name System (DNS)S. Josefsson | Proposed Standard | March 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 |
| 4357 | Additional Cryptographic Algorithms for Use with GOST 28147-89, GOST R 34.10-94, GOST R 34.10-2001, and GOST R 34.11-94 AlgorithmsV. Popov, I. Kurepkin, S. Leontiev | Informational | January 2006 |
| 4347 | Datagram Transport Layer SecurityE. Rescorla, N. Modadugu · obsoleted by RFC 6347 | Historic | April 2006 |
| 4346 | The Transport Layer Security (TLS) Protocol Version 1.1T. Dierks, E. Rescorla · obsoleted by RFC 5246 | Historic | April 2006 |
| 4297 | Remote Direct Memory Access (RDMA) over IP Problem StatementA. Romanow, J. Mogul, T. Talpey, S. Bailey | Informational | December 2005 |
| 4279 | Pre-Shared Key Ciphersuites for Transport Layer Security (TLS)P. Eronen, Ed., H. Tschofenig, Ed. | Proposed Standard | December 2005 |
| 4278 | Standards Maturity Variance Regarding the TCP MD5 Signature Option (RFC 2385) and the BGP-4 SpecificationS. Bellovin, A. Zinin | Informational | January 2006 |
| 4261 | Common Open Policy Service (COPS) Over Transport Layer Security (TLS)J. Walker, A. Kulkarni, Ed. | Proposed Standard | December 2005 |
| 4251 | The Secure Shell (SSH) Protocol ArchitectureT. Ylonen, C. Lonvick, Ed. | Proposed Standard | January 2006 |
| 4244 | An Extension to the Session Initiation Protocol (SIP) for Request History InformationM. Barnes, Ed. · obsoleted by RFC 7044 | Proposed Standard | November 2005 |
| 4217 | Securing FTP with TLSP. Ford-Hutchinson | Proposed Standard | October 2005 |
| 4162 | Addition of SEED Cipher Suites to Transport Layer Security (TLS)H.J. Lee, J.H. Yoon, J.I. Lee | Proposed Standard | September 2005 |
| 4154 | Voucher Trading System Application Programming Interface (VTS-API)M. Terada, K. Fujimura | Informational | September 2005 |
| 4153 | XML Voucher: Generic Voucher LanguageK. Fujimura, M. Terada, D. Eastlake 3rd | Informational | September 2005 |
| 4145 | TCP-Based Media Transport in the Session Description Protocol (SDP)D. Yon, G. Camarillo | Proposed Standard | September 2005 |
| 4132 | Addition of Camellia Cipher Suites to Transport Layer Security (TLS)S. Moriai, A. Kato, M. Kanda · obsoleted by RFC 5932 | Proposed Standard | July 2005 |
| 4112 | Electronic Commerce Modeling Language (ECML) Version 2 SpecificationD. Eastlake 3rd | Proposed Standard | June 2005 |
| 4111 | Security Framework for Provider-Provisioned Virtual Private Networks (PPVPNs)L. Fang, Ed. | Informational | July 2005 |
| 4086 | Randomness Requirements for SecurityD. Eastlake 3rd, J. Schiller, S. Crocker | Best Current Practice | June 2005 |
| 4083 | Input 3rd-Generation Partnership Project (3GPP) Release 5 Requirements on the Session Initiation Protocol (SIP)M. Garcia-Martin | Informational | May 2005 |
| 4046 | Multicast Security (MSEC) Group Key Management ArchitectureM. Baugher, R. Canetti, L. Dondeti, F. Lindholm | Informational | May 2005 |
| 3998 | Internet Printing Protocol (IPP): Job and Printer Administrative OperationsC. Kugler, H. Lewis, T. Hastings, Ed. | Proposed Standard | March 2005 |
| 3989 | Middlebox Communications (MIDCOM) Protocol SemanticsM. Stiemerling, J. Quittek, T. Taylor · obsoleted by RFC 5189 | Informational | February 2005 |
| 3943 | Transport Layer Security (TLS) Protocol Compression Using Lempel-Ziv-Stac (LZS)R. Friend | Informational | November 2004 |
| 3920 | Extensible Messaging and Presence Protocol (XMPP): CoreP. Saint-Andre, Ed. · obsoleted by RFC 6120 | Proposed Standard | October 2004 |
| 3887 | Message Tracking Query ProtocolT. Hansen | Proposed Standard | September 2004 |
| 3871 | Operational Security Requirements for Large Internet Service Provider (ISP) IP Network InfrastructureG. Jones, Ed. | Informational | September 2004 |
| 3867 | Payment Application Programmers Interface (API) for v1.0 Internet Open Trading Protocol (IOTP)Y. Kawatsura, M. Hiroya, H. Beykirch | Informational | November 2004 |
| 3853 | S/MIME Advanced Encryption Standard (AES) Requirement for the Session Initiation Protocol (SIP)J. Peterson | Proposed Standard | July 2004 |
| 3830 | MIKEY: Multimedia Internet KEYingJ. Arkko, E. Carrara, F. Lindholm, M. Naslund, K. Norrman | Proposed Standard | August 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 |
| 3805 | Printer MIB v2R. Bergman, H. Lewis, I. McDonald | Proposed Standard | June 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 |
| 3767 | Securely Available Credentials ProtocolS. Farrell, Ed. | Proposed Standard | June 2004 |
| 3760 | Securely Available Credentials (SACRED) - Credential Server FrameworkD. Gustafson, M. Just, M. Nystrom | Informational | April 2004 |
| 3749 | Transport Layer Security Protocol Compression MethodsS. Hollenbeck | Proposed Standard | May 2004 |
| 3748 | Extensible Authentication Protocol (EAP)B. Aboba, L. Blunk, J. Vollbrecht, J. Carlson, H. Levkowetz, Ed. | Proposed Standard | June 2004 |
| 3734 | Extensible Provisioning Protocol (EPP) Transport Over TCPS. Hollenbeck · obsoleted by RFC 4934 | Proposed Standard | March 2004 |
| 3712 | Lightweight Directory Access Protocol (LDAP): Schema for Printer ServicesP. Fleming, I. McDonald · obsoleted by RFC 7612 | Informational | February 2004 |
| 3656 | The Mailbox Update (MUPDATE) Distributed Mailbox Database ProtocolR. Siemborski | Experimental | December 2003 |
| 3631 | Security Mechanisms for the InternetS. Bellovin, Ed., J. Schiller, Ed., C. Kaufman, Ed. | Informational | December 2003 |
| 3588 | Diameter Base ProtocolP. Calhoun, J. Loughney, E. Guttman, G. Zorn, J. Arkko · obsoleted by RFC 6733 | Proposed Standard | September 2003 |
| 3568 | Known Content Network (CN) Request-Routing MechanismsA. Barbir, B. Cain, R. Nair, O. Spatscheck | Informational | July 2003 |
| 3562 | Key Management Considerations for the TCP MD5 Signature OptionM. Leech | Informational | July 2003 |
| 3560 | Use of the RSAES-OAEP Key Transport Algorithm in Cryptographic Message Syntax (CMS)R. Housley | Proposed Standard | July 2003 |
| 3552 | Guidelines for Writing RFC Text on Security ConsiderationsE. Rescorla, B. Korver | Best Current Practice | July 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 |
| 3539 | Authentication, Authorization and Accounting (AAA) Transport ProfileB. Aboba, J. Wood | Proposed Standard | June 2003 |
| 3505 | Electronic Commerce Modeling Language (ECML): Version 2 RequirementsD. Eastlake | Informational | March 2003 |
| 3501 | INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1M. Crispin · obsoleted by RFC 9051 | Proposed Standard | March 2003 |
| 3499 | Request for Comments Summary RFC Numbers 3400-3499S. Ginoza | Informational | December 2003 |
| 3481 | TCP over Second (2.5G) and Third (3G) Generation Wireless NetworksH. Inamura, Ed., G. Montenegro, Ed., R. Ludwig, A. Gurtov, F. Khafizov | Best Current Practice | February 2003 |
| 3436 | Transport Layer Security over Stream Control Transmission ProtocolA. Jungmaier, E. Rescorla, M. Tuexen | Proposed Standard | December 2002 |
| 3365 | Strong Security Requirements for Internet Engineering Task Force Standard ProtocolsJ. Schiller | Best Current Practice | August 2002 |
| 3354 | Internet Open Trading Protocol Version 2 RequirementsD. Eastlake 3rd | Informational | August 2002 |
| 3329 | Security Mechanism Agreement for the Session Initiation Protocol (SIP)J. Arkko, V. Torvinen, G. Camarillo, A. Niemi, T. Haukka | Proposed Standard | January 2003 |
| 3316 | Internet Protocol Version 6 (IPv6) for Some Second and Third Generation Cellular HostsJ. Arkko, G. Kuijpers, H. Soliman, J. Loughney, J. Wiljakka · obsoleted by RFC 7066 | Informational | May 2003 |
| 3303 | Middlebox communication architecture and frameworkP. Srisuresh, J. Kuthan, J. Rosenberg, A. Molitor, A. Rayhan | Informational | August 2002 |
| 3257 | Stream Control Transmission Protocol Applicability StatementL. Coene | Informational | April 2002 |
| 3235 | Network Address Translator (NAT)-Friendly Application Design GuidelinesD. Senie | Informational | January 2002 |
| 3207 | SMTP Service Extension for Secure SMTP over Transport Layer SecurityP. Hoffman | Proposed Standard | February 2002 |
| 3161 | Internet X.509 Public Key Infrastructure Time-Stamp Protocol (TSP)C. Adams, P. Cain, D. Pinkas, R. Zuccherato | Proposed Standard | August 2001 |
| 3150 | End-to-end Performance Implications of Slow LinksS. Dawkins, G. Montenegro, M. Kojo, V. Magret | Best Current Practice | July 2001 |
| 3135 | Performance Enhancing Proxies Intended to Mitigate Link-Related DegradationsJ. Border, M. Kojo, J. Griner, G. Montenegro, Z. Shelby | Informational | June 2001 |
| 3106 | ECML v1.1: Field Specifications for E-CommerceD. Eastlake 3rd, T. Goldstein | Informational | April 2001 |
| 3080 | The Blocks Extensible Exchange Protocol CoreM. Rose | Proposed Standard | March 2001 |
| 3029 | Internet X.509 Public Key Infrastructure Data Validation and Certification Server ProtocolsC. Adams, P. Sylvester, M. Zolotarev, R. Zuccherato | Experimental | February 2001 |
| 2993 | Architectural Implications of NATT. Hain | Informational | November 2000 |
| 2935 | Internet Open Trading Protocol (IOTP) HTTP SupplementD. Eastlake 3rd, C. Smith | Proposed Standard | September 2000 |
| 2911 | Internet Printing Protocol/1.1: Model and SemanticsT. Hastings, Ed., R. Herriot, R. deBry, S. Isaacson, P. Powell · obsoleted by RFC 8011 | Proposed Standard | September 2000 |
| 2910 | Internet Printing Protocol/1.1: Encoding and TransportR. Herriot, Ed., S. Butler, P. Moore, R. Turner, J. Wenn · obsoleted by RFC 8010 | Proposed Standard | September 2000 |
| 2847 | LIPKEY - A Low Infrastructure Public Key Mechanism Using SPKMM. Eisler | Proposed Standard | June 2000 |
| 2832 | NSI Registry Registrar Protocol (RRP) Version 1.1.0S. Hollenbeck, M. Srivastava | Informational | May 2000 |
| 2830 | Lightweight Directory Access Protocol (v3): Extension for Transport Layer SecurityJ. Hodges, R. Morgan, M. Wahl · obsoleted by RFC 4510, RFC 4511, RFC 4513 | Proposed Standard | May 2000 |
| 2828 | Internet Security GlossaryR. Shirey · obsoleted by RFC 4949 | Informational | May 2000 |
| 2825 | A Tangled Web: Issues of I18N, Domain Names, and the Other Internet protocolsIAB, L. Daigle, Ed. | Informational | May 2000 |
| 2818 | HTTP Over TLSE. Rescorla · obsoleted by RFC 9110 | Informational | May 2000 |
| 2817 | Upgrading to TLS Within HTTP/1.1R. Khare, S. Lawrence | Proposed Standard | May 2000 |
| 2813 | Internet Relay Chat: Server ProtocolC. Kalt | Informational | April 2000 |
| 2801 | Internet Open Trading Protocol - IOTP Version 1.0D. Burdett | Informational | April 2000 |
| 2757 | Long Thin NetworksG. Montenegro, S. Dawkins, M. Kojo, V. Magret, N. Vaidya | Informational | January 2000 |
| 2748 | The COPS (Common Open Policy Service) ProtocolD. Durham, Ed., J. Boyle, R. Cohen, S. Herzog, R. Rajan, A. Sastry | Proposed Standard | January 2000 |
| 2719 | Framework Architecture for Signaling TransportL. Ong, I. Rytina, M. Garcia, H. Schwarzbauer, L. Coene, H. Lin, I. Juhasz, M. Holdrege, C. Sharp | Informational | October 1999 |
| 2706 | ECML v1: Field Names for E-CommerceD. Eastlake 3rd, T. Goldstein · obsoleted by RFC 3106 | Informational | October 1999 |
| 2653 | CIP Transport ProtocolsJ. Allen, P. Leach, R. Hedberg | Proposed Standard | August 1999 |
| 2628 | Simple Cryptographic Program Interface (Crypto API)V. Smyslov | Informational | June 1999 |
| 2624 | NFS Version 4 Design ConsiderationsS. Shepler | Informational | June 1999 |
| 2595 | Using TLS with IMAP, POP3 and ACAPC. Newman | Proposed Standard | June 1999 |
| 2569 | Mapping between LPD and IPP ProtocolsR. Herriot, Ed., T. Hastings, N. Jacobs, J. Martin | Experimental | April 1999 |
| 2568 | Rationale for the Structure of the Model and Protocol for the Internet Printing ProtocolS. Zilles | Experimental | April 1999 |
| 2567 | Design Goals for an Internet Printing ProtocolF. Wright | Experimental | April 1999 |
| 2566 | Internet Printing Protocol/1.0: Model and SemanticsR. deBry, T. Hastings, R. Herriot, S. Isaacson, P. Powell · obsoleted by RFC 2911 | Experimental | April 1999 |
| 2565 | Internet Printing Protocol/1.0: Encoding and TransportR. Herriot, Ed., S. Butler, P. Moore, R. Turner · obsoleted by RFC 2910 | Experimental | April 1999 |
| 2487 | SMTP Service Extension for Secure SMTP over TLSP. Hoffman · obsoleted by RFC 3207 | Proposed Standard | January 1999 |