Alternative Challenge Password Attributes for Enrollment over Secure Transport (RFC7894)
Original Publication Date: 2016-Jun-01
Included in the Prior Art Database: 2016-Jun-29
Internet Society Requests For Comment (RFCs)
M. Pritikin: AUTHOR [+2]
"PKCS #9: Selected Object Classes and Attribute Types Version 2.0" [RFC2985] defined a challengePassword attribute that has been overloaded by modern protocol usage with the appropriate interpretation being provided by context rather than OID definition. PKCS #9 defines the challengePassword attribute as "a password by which an entity may request certificate revocation". The parsing and embedding of this attribute within Certificate Signing Requests is well supported by common PKI toolsets, but many workflows leverage this supported field as a one-time password for authentication. For example, this is codified in many Simple Certificate Enrollment Protocol (SCEP) implementations as indicated by [SCEP]. Continuing this trend, Enrollment over Secure Transport (EST) [RFC7030] defines an additional semantic for the challengePassword attribute in Section 3.5, in order to provide a linking of the Certificate Signing Request (CSR) to the secure transport.
Internet Engineering Task Force (IETF) M. Pritikin Request for Comments: 7894 Cisco Systems, Inc. Category: Standards Track C. Wallace ISSN: 2070-1721 Red Hound Software, Inc. June 2016
Alternative Challenge Password Attributes for Enrollment over Secure Transport
This document defines a set of new Certificate Signing Request attributes for use with the Enrollment over Secure Transport (EST) protocol. These attributes provide disambiguation of the existing overloaded uses for the challengePassword attribute defined in "PKCS #9: Selected Object Classes and Attribute Types Version 2.0" (RFC 2985). Uses include the original certificate revocation password, common authentication password uses, and EST-defined linking of transport security identity.
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 7841.
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/rfc7894.
Wallace Standards Track [Page 1]
RFC 7894 EST Alternative Challenge Password Attributes June 2016
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Table of Contents
1. Introduction ....................................................3
2. Terminology .....................................................4
3. Alternative Challenge Password Attributes ......................