| 9920 | RFC Editor Model (Version 3)P. Hoffman, A. Rossi | Informational | February 2026 |
| 9839 | Unicode Character Repertoire SubsetsT. Bray, P. Hoffman | Proposed Standard | August 2025 |
| 9720 | RFC Formats and VersionsP. Hoffman, H. Flanagan | Informational | January 2025 |
| 9718 | DNSSEC Trust Anchor Publication for the Root ZoneJ. Abley, J. Schlyter, G. Bailey, P. Hoffman | Informational | January 2025 |
| 9609 | Initializing a DNS Resolver with Priming QueriesP. Koch, M. Larson, P. Hoffman | Best Current Practice | February 2025 |
| 9539 | Unilateral Opportunistic Deployment of Encrypted Recursive-to-Authoritative DNSD. K. Gillmor, Ed., J. Salazar, Ed., P. Hoffman, Ed. | Experimental | February 2024 |
| 9499 | DNS TerminologyP. Hoffman, K. Fujiwara | Best Current Practice | March 2024 |
| 9476 | The .alt Special-Use Top-Level DomainW. Kumari, P. Hoffman | Proposed Standard | September 2023 |
| 9371 | Registration Procedures for Private Enterprise Numbers (PENs)A. Baber, P. Hoffman | Informational | March 2023 |
| 9364 | DNS Security Extensions (DNSSEC)P. Hoffman | Best Current Practice | February 2023 |
| 9157 | Revised IANA Considerations for DNSSECP. Hoffman | Proposed Standard | December 2021 |
| 9156 | DNS Query Name Minimisation to Improve PrivacyS. Bortzmeyer, R. Dolmans, P. Hoffman | Proposed Standard | November 2021 |
| 8949 | Concise Binary Object Representation (CBOR)C. Bormann, P. Hoffman | Internet Standard | December 2020 |
| 8875 | Working Group GitHub AdministrationA. Cooper, P. Hoffman | Informational | August 2020 |
| 8806 | Running a Root Server Local to a ResolverW. Kumari, P. Hoffman | Informational | June 2020 |
| 8499 | DNS TerminologyP. Hoffman, A. Sullivan, K. Fujiwara · obsoleted by RFC 9499 | Best Current Practice | January 2019 |
| 8484 | DNS Queries over HTTPS (DoH)P. Hoffman, P. McManus | Proposed Standard | October 2018 |
| 8427 | Representing DNS Messages in JSONP. Hoffman | Informational | July 2018 |
| 8162 | Using Secure DNS to Associate Certificates with Domain Names for S/MIMEP. Hoffman, J. Schlyter | Experimental | May 2017 |
| 8145 | Signaling Trust Anchor Knowledge in DNS Security Extensions (DNSSEC)D. Wessels, W. Kumari, P. Hoffman | Proposed Standard | April 2017 |
| 8109 | Initializing a DNS Resolver with Priming QueriesP. Koch, M. Larson, P. Hoffman · obsoleted by RFC 9609 | Best Current Practice | March 2017 |
| 7998 | "xml2rfc" Version 3 Preparation Tool DescriptionP. Hoffman, J. Hildebrand | Informational | December 2016 |
| 7992 | HTML Format for RFCsJ. Hildebrand, Ed., P. Hoffman | Informational | December 2016 |
| 7991 | The "xml2rfc" Version 3 VocabularyP. Hoffman | Informational | December 2016 |
| 7958 | DNSSEC Trust Anchor Publication for the Root ZoneJ. Abley, J. Schlyter, G. Bailey, P. Hoffman · obsoleted by RFC 9718 | Informational | August 2016 |
| 7858 | Specification for DNS over Transport Layer Security (TLS)Z. Hu, L. Zhu, J. Heidemann, A. Mankin, D. Wessels, P. Hoffman | Proposed Standard | May 2016 |
| 7719 | DNS TerminologyP. Hoffman, A. Sullivan, K. Fujiwara · obsoleted by RFC 8499 | Informational | December 2015 |
| 7706 | Decreasing Access Time to Root Servers by Running One on LoopbackW. Kumari, P. Hoffman · obsoleted by RFC 8806 | Informational | November 2015 |
| 7486 | HTTP Origin-Bound Authentication (HOBA)S. Farrell, P. Hoffman, M. Thomas | Experimental | March 2015 |
| 7396 | JSON Merge PatchP. Hoffman, J. Snell | Proposed Standard | October 2014 |
| 7386 | JSON Merge PatchP. Hoffman, J. Snell · obsoleted by RFC 7396 | Proposed Standard | October 2014 |
| 7321 | Cryptographic Algorithm Implementation Requirements and Usage Guidance for Encapsulating Security Payload (ESP) and Authentication Header (AH)D. McGrew, P. Hoffman · obsoleted by RFC 8221 | Proposed Standard | August 2014 |
| 7296 | Internet Key Exchange Protocol Version 2 (IKEv2)C. Kaufman, P. Hoffman, Y. Nir, P. Eronen, T. Kivinen | Internet Standard | October 2014 |
| 7085 | Top-Level Domains That Are Already DotlessJ. Levine, P. Hoffman | Informational | December 2013 |
| 7049 | Concise Binary Object Representation (CBOR)C. Bormann, P. Hoffman · obsoleted by RFC 8949 | Proposed Standard | October 2013 |
| 6927 | Variants in Second-Level Names Registered in Top-Level DomainsJ. Levine, P. Hoffman | Informational | May 2013 |
| 6722 | Publishing the "Tao of the IETF" as a Web PageP. Hoffman, Ed. · obsoleted by RFC 9592 | Informational | August 2012 |
| 6698 | The DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS) Protocol: TLSAP. Hoffman, J. Schlyter | Proposed Standard | August 2012 |
| 6605 | Elliptic Curve Digital Signature Algorithm (DSA) for DNSSECP. Hoffman, W.C.A. Wijngaards | Proposed Standard | April 2012 |
| 6452 | The Unicode Code Points and Internationalized Domain Names for Applications (IDNA) - Unicode 6.0P. Faltstrom, Ed., P. Hoffman, Ed. | Proposed Standard | November 2011 |
| 6433 | Requirements for a Working Group Milestones ToolP. Hoffman | Informational | November 2011 |
| 6365 | Terminology Used in Internationalization in the IETFP. Hoffman, J. Klensin | Best Current Practice | September 2011 |
| 6358 | Additional Master Secret Inputs for TLSP. Hoffman | Experimental | January 2012 |
| 6322 | Datatracker States and Annotations for the IAB, IRTF, and Independent Submission StreamsP. Hoffman | Informational | July 2011 |
| 6293 | Requirements for Internet-Draft Tracking by the IETF Community in the DatatrackerP. Hoffman | Informational | June 2011 |
| 6292 | Requirements for a Working Group Charter ToolP. Hoffman | Informational | June 2011 |
| 6194 | Security Considerations for the SHA-0 and SHA-1 Message-Digest AlgorithmsT. Polk, L. Chen, S. Turner, P. Hoffman | Informational | March 2011 |
| 6014 | Cryptographic Algorithm Identifier Allocation for DNSSECP. Hoffman | Proposed Standard | November 2010 |
| 5996 | Internet Key Exchange Protocol Version 2 (IKEv2)C. Kaufman, P. Hoffman, Y. Nir, P. Eronen · obsoleted by RFC 7296 | Proposed Standard | September 2010 |
| 5912 | New ASN.1 Modules for the Public Key Infrastructure Using X.509 (PKIX)P. Hoffman, J. Schaad | Informational | June 2010 |
| 5911 | New ASN.1 Modules for Cryptographic Message Syntax (CMS) and S/MIMEP. Hoffman, J. Schaad | Informational | June 2010 |
| 5895 | Mapping Characters for Internationalized Domain Names in Applications (IDNA) 2008P. Resnick, P. Hoffman | Informational | September 2010 |
| 5518 | Vouch By ReferenceP. Hoffman, J. Levine, A. Hathcock | Proposed Standard | April 2009 |
| 4894 | Use of Hash Algorithms in Internet Key Exchange (IKE) and IPsecP. Hoffman | Informational | May 2007 |
| 4718 | IKEv2 Clarifications and Implementation GuidelinesP. Eronen, P. Hoffman · obsoleted by RFC 5996 | Informational | October 2006 |
| 4677 | The Tao of IETF - A Novice's Guide to the Internet Engineering Task ForceP. Hoffman, S. Harris · obsoleted by RFC 6722 | Informational | September 2006 |
| 4434 | The AES-XCBC-PRF-128 Algorithm for the Internet Key Exchange Protocol (IKE)P. Hoffman | Proposed Standard | February 2006 |
| 4308 | Cryptographic Suites for IPsecP. Hoffman | Proposed Standard | December 2005 |
| 4270 | Attacks on Cryptographic Hashes in Internet ProtocolsP. Hoffman, B. Schneier | Informational | December 2005 |
| 4266 | The gopher URI SchemeP. Hoffman | Proposed Standard | November 2005 |
| 4248 | The telnet URI SchemeP. Hoffman | Proposed Standard | October 2005 |
| 4157 | The prospero URI SchemeP. Hoffman | Historic | August 2005 |
| 4156 | The wais URI SchemeP. Hoffman | Historic | August 2005 |
| 4134 | Examples of S/MIME MessagesP. Hoffman, Ed. | Informational | July 2005 |
| 4109 | Algorithms for Internet Key Exchange version 1 (IKEv1)P. Hoffman | Proposed Standard | May 2005 |
| 3855 | Transporting Secure/Multipurpose Internet Mail Extensions (S/MIME) Objects in X.400P. Hoffman, C. Bonatti | Proposed Standard | July 2004 |
| 3854 | Securing X.400 Content with Secure/Multipurpose Internet Mail Extensions (S/MIME)P. Hoffman, C. Bonatti, A. Eggen | Proposed Standard | July 2004 |
| 3766 | Determining Strengths For Public Keys Used For Exchanging Symmetric KeysH. Orman, P. Hoffman | Best Current Practice | April 2004 |
| 3664 | The AES-XCBC-PRF-128 Algorithm for the Internet Key Exchange Protocol (IKE)P. Hoffman · obsoleted by RFC 4434 | Proposed Standard | January 2004 |
| 3536 | Terminology Used in Internationalization in the IETFP. Hoffman · obsoleted by RFC 6365 | Informational | May 2003 |
| 3491 | Nameprep: A Stringprep Profile for Internationalized Domain Names (IDN)P. Hoffman, M. Blanchet · obsoleted by RFC 5891 | Proposed Standard | March 2003 |
| 3490 | Internationalizing Domain Names in Applications (IDNA)P. Faltstrom, P. Hoffman, A. Costello · obsoleted by RFC 5890, RFC 5891 | Proposed Standard | March 2003 |
| 3454 | Preparation of Internationalized Strings ("stringprep")P. Hoffman, M. Blanchet · obsoleted by RFC 7564 | Proposed Standard | January 2003 |
| 3233 | Defining the IETFP. Hoffman, S. Bradner | Best Current Practice | February 2002 |
| 3207 | SMTP Service Extension for Secure SMTP over Transport Layer SecurityP. Hoffman | Proposed Standard | February 2002 |
| 2987 | Registration of Charset and Languages Media Features TagsP. Hoffman | Proposed Standard | November 2000 |
| 2781 | UTF-16, an encoding of ISO 10646P. Hoffman, F. Yergeau | Informational | February 2000 |
| 2634 | Enhanced Security Services for S/MIMEP. Hoffman, Ed. | Proposed Standard | June 1999 |
| 2585 | Internet X.509 Public Key Infrastructure Operational Protocols: FTP and HTTPR. Housley, P. Hoffman | Proposed Standard | May 1999 |
| 2487 | SMTP Service Extension for Secure SMTP over TLSP. Hoffman · obsoleted by RFC 3207 | Proposed Standard | January 1999 |
| 2368 | The mailto URL schemeP. Hoffman, L. Masinter, J. Zawinski · obsoleted by RFC 6068 | Proposed Standard | July 1998 |
| 2312 | S/MIME Version 2 Certificate HandlingS. Dusse, P. Hoffman, B. Ramsdell, J. Weinstein | Historic | March 1998 |
| 2311 | S/MIME Version 2 Message SpecificationS. Dusse, P. Hoffman, B. Ramsdell, L. Lundblade, L. Repka | Historic | March 1998 |