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Deprecate DES support for Kerberos

Document Type Replaced Internet-Draft (krb-wg WG)
Expired & archived
Author Love Astrand
Last updated 2012-02-09 (Latest revision 2010-07-10)
Replaced by draft-ietf-krb-wg-des-die-die-die
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-krb-wg-des-die-die-die
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


A long long time ago Data Encryption Standard (DES) was standardized. Some 30 years later (2003) is was withdrawn as a standard by National Institute of Standards and Technology (NIST), today 6 years later, its time for DES to finally die. By 2008 it was possible to brute force DES keys in 6.4 days using less than USD 10k worth of hardware. So by 2008 DES had passed its sell-by date. This document updates RFC1964, RFC4120, and RFC4121 to deprecate the use of DES in Kerberos. Because the version of Kerberos specified in RFC1510 only supports DES and has been replaced by RFC4120, RFC1510 is reclassified as historic.


Love Astrand

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)