Internet X.509 Public Key Infrastructure: Logotypes in X.509 Certificates

Abstract

This document specifies a certificate extension for including logotypes in public key certificates and attribute certificates.

Device-Enabled Authorization in the Grey System

“…A photograph of a person is used as an identifier for the person, in lieu of or in addition to a text string name, in credentials such as certificates (c.f., [43]). …”

Internet X.509 Public Key Infrastructure -- Certificate Image

“…This section defines the certificate image as a new otherLogos type according to Section 4.1 of [RFC3709].…”

“…The optional LogotypeImageInfo structure is defined in [RFC3709] and is included here for convenience: The language tag may carry information about the language used to express any textual elements within the image as well as any audio information associated with the image.…”

“…This standard specifies how to bind a certificate image to a certificate (defined in [RFC5280]), providing a visual representation of that certificate using the Logotype extension defined in [RFC3709] and specifying the certificate image as a new "otherLogos" type.…”

“…RFC 3709 [RFC3709] defines a certificate extension for binding images to a certificate, such as a community logo and issuer logo, enhancing the display of certificate information. The syntax is extensible and allows inclusion of new image types using the otherLogos structure.…”