The Kerberos (krb-wg) working group in the Security Area of the IETF has been rechartered. For additional information, please contact the Area Directors or the working group Chairs. +++ Kerberos (krb-wg) =================== Current Status: Active Working Group Chair(s): Jeffrey Hutzelman <jhutz@cmu.edu> Larry Zhu <lzhu@windows.microsoft.com> Security Area Director(s): Tim Polk <tim.polk@nist.gov> Sam Hartman <hartmans-ietf@mit.edu> Security Area Advisor Sam Hartman <hartmans-ietf@mit.edu> Mailing Lists: General Discussion: ietf-krb-wg@anl.gov To Subscribe: majordomo@anl.gov In Body: subscribe ietf-krb-wg your_email_address Archive: ftp://ftp.ietf.org/ietf-mail-archive/krb-wg/ Description of Working Group: Kerberos over the years has been ported to virtually every operating system. There are at least two open source versions, with numerous commercial versions based on these and other proprietary implementations. Kerberos evolution has continued in recent years, with the development of a new crypto framework, publication of a new version of the Kerberos specification, support for initial authentication using public keys, and numerous extensions developed in and out of the IETF. However, wider deployment and advances in technology bring with them both new challenges and new opportunities, particularly with regard to making initial authentication of users to the Kerberos system both convenient and secure. In addition, several key features remain undefined. The Kerberos Working Group will continue to improve the core Kerberos specification, develop extensions to address new needs and technologies related to improving the process of client authentication, and produce specifications for missing functionality. Specifically, the Working Group will: * Complete existing work: - ECC for PKINIT (draft-zhu-pkinit-ecc-03.txt) - Set/Change Password (draft-ietf-krb-wg-kerberos-set-passwd-05.txt) - Naming Constraints (draft-ietf-krb-wg-naming-02.txt) - Anonymity (draft-ietf-krb-wg-anon-03.txt) - Hash agility for GSS-KRB5 (draft-ietf-krb-wg-gss-cb-hash-agility-00.txt) - Hash agility for PKINIT (draft-ietf-krb-wg-pkinit-alg-agility-01.txt) - Referrals (draft-ietf-krb-wg-kerberos-referrals-08.txt) * Prepare and advance a specification for an updated, backward-compatible version of the Kerberos version 5 protocol which supports non-ASCII principal and realm names, salt strings, and passwords; insures that those portions of the protocol which are not encrypted are nonetheless authenticated whenever possible; and enables future protocol revisions and extensions. * Develop extensions which reduce or eliminate exposure of Kerberos clients' long-term keys to attack and enable the use of alternate mechanisms for initial authentication. This task will comprise the following items: - A model and framework for preauthentication mechanisms - A mechanism for providing a protected channel for carrying preauthentication data and/or a reply key between a Kerberos client and KDC, within the KDC_REQ/KDC_REP exchange. - Support for One-Time Passwords - Support for hardware authentication tokens - Support for using TLS to secure communications with Kerberos KDCs. * Examine issues related to the current cross-realm model, produce a list of problems to be solved, and evaluate approaches to solving them. * Develop extensions to Kerberos and a GSS-API mechanism (IAKERB) to enable Kerberos clients to communicate with a KDC by using a GSS-API acceptor as a proxy. * Produce a data model for information needed by the KDC, and an LDAP schema for management of that data. Goals and Milestones: --DONE-- TCP Extensibility to IESG JUL 2007 ECC for PKINIT to IESG JUL 2007 Set/Change Password to IESG JUL 2007 Naming Constraints to IESG JUL 2007 Anonymity to IESG JUL 2007 Hash agility for GSS-KRB5 to IESG JUL 2007 Hash agility for PKINIT to IESG JUL 2007 WGLC on STARTTLS JUL 2007 WGLC on Referrals AUG 2007 WGLC on data model AUG 2007 Choose direction for Kerberos v5.3 SEP 2007 WGLC on preauth framework SEP 2007 WGLC on cross-realm issues NOV 2007 WGLC on OTP NOV 2007 WGLC on hardware preauth MAR 2008 WGLC on Kerberos v5.3 MAR 2008 WGLC on IAKERB MAR 2008 WGLC on LDAP schema _______________________________________________ IETF-Announce@ietf.org https://www1.ietf.org/mailman/listinfo/ietf-announce
