Internet X.509 Public Key Infrastructure -- Certificate Image
RFC 6170
Document | Type |
RFC - Proposed Standard
(May 2011; No errata)
Updates RFC 3709
|
|
---|---|---|---|
Authors | Stefan Santesson , Russ Housley , Leonard Rosenthol , Siddharth Bajaj | ||
Last updated | 2015-10-14 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6170 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Tim Polk | ||
IESG note | Steve Kent is the document shepherd <kent@bbn.com> | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) S. Santesson Request for Comments: 6170 3xA Security Updates: 3709 R. Housley Category: Standards Track Vigil Security ISSN: 2070-1721 S. Bajaj Symantec Corp. L. Rosenthol Adobe May 2011 Internet X.509 Public Key Infrastructure -- Certificate Image Abstract This document specifies a method to bind a visual representation of a certificate in the form of a certificate image to a public key certificate as defined in RFC 5280, by defining a new "otherLogos" image type according to RFC 3709. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6170. Copyright Notice Copyright (c) 2011 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Santesson, et al. Standards Track [Page 1] RFC 6170 Certificate Image May 2011 Table of Contents 1. Introduction ....................................................2 1.1. Terminology ................................................3 2. Certificate Image ...............................................3 3. LogotypeImageInfo ...............................................4 4. Embedded Images .................................................5 5. Certificate Image Formats .......................................6 5.1. PDF ........................................................6 5.2. SVG ........................................................6 5.3. PNG ........................................................7 6. Security Considerations .........................................7 7. Acknowledgements ................................................8 8. References ......................................................9 8.1. Normative References .......................................9 8.2. Informative References .....................................9 Appendix A. ASN.1 Module .........................................10 Appendix B. Example ..............................................11 1. Introduction 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. The purpose of the certificate image is to aid human interpretation of a certificate by providing meaningful visual information to the user interface (UI). Typical situations when a human needs to examine the visual representation of a certificate are: - A person establishes a secured channel with an authenticated service. The person needs to determine the identity of the service based on the authenticated credentials. - A person validates the signature on critical information, such as signed executable code, and needs to determine the identity of the signer based on the signer's certificate. - A person is required to select an appropriate certificate to be used when authenticating to a service or Identity Management infrastructure. The person needs to see the available certificates in order to distinguish between them in the selection process. Santesson, et al. Standards Track [Page 2] RFC 6170 Certificate Image May 2011 The display of certificate information to humans is challenging dueShow full document text