Internet X.509 Public Key Infrastructure Qualified Certificates Profile. - Stefan Santesson; W. Timothy Polk; Petra Barzin; Magnus Nyström (RFC, 2001)

Internet X.509 Public Key Infrastructure: Logotypes in X.509 Certificates. - Stefan Santesson; Russ Housley; Trevor Freeman (RFC, 2004)

Internet X.509 Public Key Infrastructure: Qualified Certificates Profile. - Stefan Santesson; Magnus Nyström; Tim Polk (RFC, 2004)

X.509 Certificate Extension for Secure/Multipurpose Internet Mail Extensions (S/MIME) Capabilities. - Stefan Santesson (RFC, 2005)

Internet X.509 Public Key Infrastructure Authority Information Access Certificate Revocation List (CRL) Extension. - Stefan Santesson; Russell Housley (RFC, 2005)

Update to DirectoryString Processing in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile. - Russell Housley; Stefan Santesson (RFC, 2006)

TLS Handshake Message for Supplemental Data. - Stefan Santesson (RFC, 2006)

TLS User Mapping Extension. - Stefan Santesson; Ari Medvinsky; Joshua Ball (RFC, 2006)

Internet X.509 Public Key Infrastructure Subject Alternative Name for Expression of Service Name. - Stefan Santesson (RFC, 2007)

Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile. - David Cooper; Stefan Santesson; Stephen Farrell; Sharon Boeyen; Russell Housley; W. Timothy Polk (RFC, 2008)

Internet X.509 Public Key Infrastructure: Additional Algorithms and Identifiers for DSA and ECDSA. - Quynh Dang; Stefan Santesson; Kathleen M. Moriarty; Daniel R. L. Brown; Tim Polk (RFC, 2010)

ESSCertIDv2 Update for RFC 3161. - Stefan Santesson; Nick Pope (RFC, 2010)

Internet X.509 Public Key Infrastructure - Certificate Image. - Stefan Santesson; Russell Housley; Siddharth Bajaj; Leonard Rosenthol (RFC, 2011)

Online Certificate Status Protocol Algorithm Agility. - Stefan Santesson; Phillip M. Hallam-Baker (RFC, 2011)

X.509 Internet Public Key Infrastructure Online Certificate Status Protocol - OCSP. - Stefan Santesson; Michael Myers; Rich Ankney; Ambarish Malpani; Slava Galperin; Carlisle Adams (RFC, 2013)

Authentication Context Certificate Extension. - Stefan Santesson (RFC, 2016)

Transport Layer Security (TLS) Cached Information Extension. - Stefan Santesson; Hannes Tschofenig (RFC, 2016)

Signature Validation Token. - Stefan Santesson; Russ Housley (RFC, 2022)

Internet X.509 Public Key Infrastructure: Logotypes in X.509 Certificates. - Stefan Santesson; Russ Housley; Trevor Freeman; Leonard Rosenthol (RFC, 2023)