Datagram Transport Layer Security (DTLS) as a Transport Layer for RADIUS (RFC7360)
Original Publication Date: 2014-Sep-01
Included in the Prior Art Database: 2014-Sep-05
Internet Society Requests For Comment (RFCs)
The RADIUS protocol as described in [RFC2865], [RFC2866], [RFC5176], and others has traditionally used methods based on MD5 [RFC1321] for per-packet authentication and integrity checks. However, the MD5 algorithm has known weaknesses such as [MD5Attack] and [MD5Break]. As a result, some specifications, such as [RFC5176], have recommended using IPsec to secure RADIUS traffic.
Internet Engineering Task Force (IETF) A. DeKok Request for Comments: 7360 FreeRADIUS Category: Experimental September 2014 ISSN: 2070-1721
Datagram Transport Layer Security (DTLS) as a Transport Layer for RADIUS
The RADIUS protocol defined in RFC 2865 has limited support for authentication and encryption of RADIUS packets. The protocol transports data in the clear, although some parts of the packets can have obfuscated content. Packets may be replayed verbatim by an attacker, and client-server authentication is based on fixed shared secrets. This document specifies how the Datagram Transport Layer Security (DTLS) protocol may be used as a fix for these problems. It also describes how implementations of this proposal can coexist with current RADIUS systems.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for examination, experimental implementation, and evaluation.
This document defines an Experimental Protocol for the Internet community. 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). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741.
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/rfc7360.
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RFC 7360 DTLS as a Transport Layer for RADIUS September 2014
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