A new Request for Comments is now available in online RFC libraries. RFC 8070 Title: Public Key Cryptography for Initial Authentication in Kerberos (PKINIT) Freshness Extension Author: M. Short, Ed., S. Moore, P. Miller Status: Standards Track Stream: IETF Date: February 2017 Mailbox: michikos@microsoft.com, sethmo@microsoft.com, paumil@microsoft.com Pages: 9 Characters: 16348 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-kitten-pkinit-freshness-07.txt URL: https://www.rfc-editor.org/info/rfc8070 DOI: 10.17487/RFC8070 This document describes how to further extend the Public Key Cryptography for Initial Authentication in Kerberos (PKINIT) extension (defined in RFC 4556) to exchange an opaque data blob that a Key Distribution Center (KDC) can validate to ensure that the client is currently in possession of the private key during a PKINIT Authentication Service (AS) exchange. This document is a product of the Common Authentication Technology Next Generation Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC