RFC 4757 has been reclassified as Historic.
RFC 4757
Title: The RC4-HMAC Kerberos Encryption Types
Used by Microsoft Windows
Author: K. Jaganathan, L. Zhu,
J. Brezak
Status: Historic
Stream: IETF
Date: December 2006
Pages: 18
Characters: 36562
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-jaganathan-rc4-hmac-03.txt
URL: https://www.rfc-editor.org/info/rfc4757
DOI: 10.17487/RFC4757
The Microsoft Windows 2000 implementation of Kerberos introduces a
new encryption type based on the RC4 encryption algorithm and using
an MD5 HMAC for checksum. This is offered as an alternative to using
the existing DES-based encryption types.
The RC4-HMAC encryption types are used to ease upgrade of existing
Windows NT environments, provide strong cryptography (128-bit key lengths),
and provide exportable (meet United States government export
restriction requirements) encryption. This document describes the
implementation of those encryption types. This memo provides information for
the Internet community.
HISTORIC: This memo defines a Historic Document for the Internet
community. It does not specify an Internet standard of any kind.
Distribution of this memo is unlimited.
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