S/MIME Version 2 Message Specification. - Stephen R. Dussé; Paul E. Hoffman; Blake Ramsdell; Laurence Lundblade; Lisa Repka (RFC, 1998)

S/MIME Version 2 Certificate Handling. - Stephen R. Dussé; Paul E. Hoffman; Blake Ramsdell; Jeff Weinstein (RFC, 1998)

The mailto URL scheme. - Paul E. Hoffman; Larry Masinter; Jamie Zawinski (RFC, 1998)

SMTP Service Extension for Secure SMTP over TLS. - Paul E. Hoffman (RFC, 1999)

Internet X.509 Public Key Infrastructure Operational Protocols: FTP and HTTP. - Russell Housley; Paul E. Hoffman (RFC, 1999)

Enhanced Security Services for S/MIME. - Paul E. Hoffman (RFC, 1999)

UTF-16, an encoding of ISO 10646. - Paul E. Hoffman; Francois Yergeau (RFC, 2000)

Registration of Charset and Languages Media Features Tags. - Paul E. Hoffman (RFC, 2000)

SMTP Service Extension for Secure SMTP over Transport Layer Security. - Paul E. Hoffman (RFC, 2002)

Defining the IETF. - Paul E. Hoffman; Scott O. Bradner (RFC, 2002)

Preparation of Internationalized Strings ("stringprep"). - Paul E. Hoffman; Marc Blanchet (RFC, 2002)

Internationalizing Domain Names in Applications (IDNA). - Patrik Fältström; Paul E. Hoffman; Adam M. Costello (RFC, 2003)

Nameprep: A Stringprep Profile for Internationalized Domain Names (IDN). - Paul E. Hoffman; Marc Blanchet (RFC, 2003)

Terminology Used in Internationalization in the IETF. - Paul E. Hoffman (RFC, 2003)

Determining Strengths For Public Keys Used For Exchanging Symmetric Keys. - Hilarie Orman; Paul E. Hoffman (RFC, 2004)

Securing X.400 Content with Secure/Multipurpose Internet Mail Extensions (S/MIME). - Paul E. Hoffman; Chris Bonatti; Anders Eggen (RFC, 2004)

Transporting Secure/Multipurpose Internet Mail Extensions (S/MIME) Objects in X.400. - Paul E. Hoffman; Chris Bonatti (RFC, 2004)

Algorithms for Internet Key Exchange version 1 (IKEv1). - Paul E. Hoffman (RFC, 2005)

Examples of S/MIME Messages. - Paul E. Hoffman (RFC, 2005)

The wais URI Scheme. - Paul E. Hoffman (RFC, 2005)

The prospero URI Scheme. - Paul E. Hoffman (RFC, 2005)

The telnet URI Scheme. - Paul E. Hoffman (RFC, 2005)

The gopher URI Scheme. - Paul E. Hoffman (RFC, 2005)

Attacks on Cryptographic Hashes in Internet Protocols. - Paul E. Hoffman; Bruce Schneier (RFC, 2005)

Cryptographic Suites for IPsec. - Paul E. Hoffman (RFC, 2005)

The AES-XCBC-PRF-128 Algorithm for the Internet Key Exchange Protocol (IKE). - Paul E. Hoffman (RFC, 2006)

The Tao of IETF - A Novice's Guide to the Internet Engineering Task Force. - Paul E. Hoffman; Susan R. Harris (RFC, 2006)

IKEv2 Clarifications and Implementation Guidelines. - Pasi Eronen; Paul E. Hoffman (RFC, 2006)

Use of Hash Algorithms in Internet Key Exchange (IKE) and IPsec. - Paul E. Hoffman (RFC, 2007)

Vouch By Reference. - Paul E. Hoffman; John R. Levine; Arvel Hathcock (RFC, 2009)

New ASN.1 Modules for Cryptographic Message Syntax (CMS) and S/MIME. - Paul E. Hoffman; Jim Schaad (RFC, 2010)

New ASN.1 Modules for the Public Key Infrastructure Using X.509 (PKIX). - Paul E. Hoffman; Jim Schaad (RFC, 2010)

Mapping Characters for Internationalized Domain Names in Applications (IDNA) 2008. - Peter W. Resnick; Paul E. Hoffman (RFC, 2010)

Internet Key Exchange Protocol Version 2 (IKEv2). - Charlie Kaufman; Paul E. Hoffman; Yoav Nir; Pasi Eronen (RFC, 2010)

Cryptographic Algorithm Identifier Allocation for DNSSEC. - Paul E. Hoffman (RFC, 2010)

Security Considerations for the SHA-0 and SHA-1 Message-Digest Algorithms. - Tim Polk; Lily Chen; Sean Turner; Paul E. Hoffman (RFC, 2011)

Requirements for a Working Group Charter Tool. - Paul E. Hoffman (RFC, 2011)

Requirements for Internet-Draft Tracking by the IETF Community in the Datatracker. - Paul E. Hoffman (RFC, 2011)

Datatracker States and Annotations for the IAB, IRTF, and Independent Submission Streams. - Paul E. Hoffman (RFC, 2011)

Terminology Used in Internationalization in the IETF. - Paul E. Hoffman; John C. Klensin (RFC, 2011)

Requirements for a Working Group Milestones Tool. - Paul E. Hoffman (RFC, 2011)

The Unicode Code Points and Internationalized Domain Names for Applications (IDNA) - Unicode 6.0. - Patrik Fältström; Paul E. Hoffman (RFC, 2011)

Additional Master Secret Inputs for TLS. - Paul E. Hoffman (RFC, 2012)

Elliptic Curve Digital Signature Algorithm (DSA) for DNSSEC. - Paul E. Hoffman; Wouter C. A. Wijngaards (RFC, 2012)

The DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS) Protocol: TLSA. - Paul E. Hoffman; Jakob Schlyter (RFC, 2012)

Publishing the "Tao of the IETF" as a Web Page. - Paul E. Hoffman (RFC, 2012)

Variants in Second-Level Names Registered in Top-Level Domains. - John R. Levine; Paul E. Hoffman (RFC, 2013)

Top-Level Domains That Are Already Dotless. - John R. Levine; Paul E. Hoffman (RFC, 2013)

Cryptographic Algorithm Implementation Requirements and Usage Guidance for Encapsulating Security Payload (ESP) and Authentication Header (AH). - David A. McGrew; Paul E. Hoffman (RFC, 2014)

Internet Key Exchange Protocol Version 2 (IKEv2). - Charlie Kaufman; Paul E. Hoffman; Yoav Nir; Pasi Eronen; Tero Kivinen (RFC, 2014)

JSON Merge Patch. - Paul E. Hoffman; James M. Snell (RFC, 2014)

HTTP Origin-Bound Authentication (HOBA). - Stephen Farrell; Paul E. Hoffman; Michael Thomas (RFC, 2015)

Decreasing Access Time to Root Servers by Running One on Loopback. - Warren Kumari; Paul E. Hoffman (RFC, 2015)

DNS Terminology. - Paul E. Hoffman; Andrew Sullivan; Kazunori Fujiwara (RFC, 2015)

Specification for DNS over Transport Layer Security (TLS). - Zi Hu; Liang Zhu; John S. Heidemann; Allison Mankin; Duane Wessels; Paul E. Hoffman (RFC, 2016)

The "xml2rfc" Version 3 Vocabulary. - Paul E. Hoffman (RFC, 2016)

HTML Format for RFCs. - Joe Hildebrand; Paul E. Hoffman (RFC, 2016)

"xml2rfc" Version 3 Preparation Tool Description. - Paul E. Hoffman; Joe Hildebrand (RFC, 2016)

Signaling Trust Anchor Knowledge in DNS Security Extensions (DNSSEC). - Duane Wessels; Warren Kumari; Paul E. Hoffman (RFC, 2017)

Using Secure DNS to Associate Certificates with Domain Names for S/MIME. - Paul E. Hoffman; Jakob Schlyter (RFC, 2017)

Representing DNS Messages in JSON. - Paul E. Hoffman (RFC, 2018)

DNS Queries over HTTPS (DoH). - Paul E. Hoffman; Patrick McManus (RFC, 2018)

Running a Root Server Local to a Resolver. - Warren Kumari; Paul E. Hoffman (RFC, 2020)

Concise Binary Object Representation (CBOR). - Carsten Bormann; Paul E. Hoffman (RFC, 2020)

The .alt Special-Use Top-Level Domain. - Warren Kumari; Paul E. Hoffman (RFC, 2023)

DNS Terminology. - Paul E. Hoffman; Kazunori Fujiwara (RFC, 2024)

DNSSEC Trust Anchor Publication for the Root Zone. - Joe Abley; Jakob Schlyter; Guillaume Bailey; Paul E. Hoffman (RFC, 2025)

RFC Formats and Versions. - Paul E. Hoffman; Heather Flanagan (RFC, 2025)

Initializing a DNS Resolver with Priming Queries. - Peter Koch 005; Matt Larson; Paul E. Hoffman (RFC, 2025)