Internet X.509 Public Key Infrastructure Certificate and CRL Profile. - Russell Housley; Warwick Ford; W. Timothy Polk; David Solo (RFC, 1999)

Internet X.509 Certificate Request Message Format. - Michael Myers; Carlisle Adams; David Solo; David Kemp (RFC, 1999)

XML-Signature Syntax and Processing. - Donald E. Eastlake III; Joseph M. Reagle; David Solo (RFC, 2001)

(Extensible Markup Language) XML-Signature Syntax and Processing. - Donald E. Eastlake III; Joseph M. Reagle; David Solo (RFC, 2002)

Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile. - Russell Housley; W. Timothy Polk; Warwick Ford; David Solo (RFC, 2002)