Using Trust Anchor Constraints during Certification Path Processing (RFC5937)
Original Publication Date: 2010-Aug-01
Included in the Prior Art Database: 2010-Aug-20
Internet Society Requests For Comment (RFCs)
S. Ashmore: AUTHOR [+2]
Trust anchors are widely used to verify digital signatures and validate certification paths [RFC5280] [X.509]. They are required when validating certification paths. The Trust Anchor Format (TAF) specification [RFC5914] defines a means for limiting the scope in which a trust anchor may be used. [RFC5280] describes how to validate a certification path. The algorithm requires processing the name and key from a trust anchor. Usage of other information, including enforcement of constraints, is permitted but not required, and the processing rules are not specified (see Section 6.2 of RFC 5280).
Internet Engineering Task Force (IETF) S. Ashmore Request for Comments: 5937 National Security Agency Category: Informational C. Wallace ISSN: 2070-1721 Cygnacom Solutions August 2010
Using Trust Anchor Constraints during Certification Path Processing
This document describes how to use information associated with a trust anchor public key when validating certification paths. This information can be used to constrain the usage of a trust anchor. Typically, constraints are used to limit the certificate policies and names that can appear in certification paths validated using a trust anchor.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for informational purposes.
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). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see 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/rfc5937.
Ashmore & Wallace Informational [Page 1]
RFC 5937 Using Trust Anchor Constraints August 2010
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