Hannes Tschofenig

Personal blog about various IETF and Internet related activities

 

Archive for July, 2007

Jul
18
2007

Scope of the proposed W3C Interest Group The Policy Languages Interest Group is designed as a forum to support researchers, developers, solution providers, and users of policy languages such as XACML (eXtensible Access Control Markup Language), the IETF’s Common Policy framework and related work, and P3P (W3C’s Platform for Privacy Preferences Project). It provides a […]

Jul
17
2007

I have compiled status updates for the three groups  I co-chair: Provisioning of Symmetric Keys (keyprov) Diameter Maintenance and Extensions (dime) Emergency Context Resolution with Internet Technologies (ecrit)

Jul
13
2007

We have just recently resubmitted an update of the RADIUS prepaid extensions draft. This version was polished to improve readability. The overview section much better describes the offered functionality. Finally, you will find more examples in the document. For those who are unfamilar with the topic, this draft introduces online (or real-time) accounting support to […]

Jul
11
2007

This document defines the Protected Password-based Extensible Authentication Protocol (EAP) method.  PP-EAP is an EAP method that enables secure exchange of password authentication mechanisms between a peer and an EAP server by using the Transport Layer Security (TLS) to establish a server-authenticated TLS tunnel.  Within the tunnel, Type-Length-Value (TLV) objects are used to convey password-based […]

Jul
11
2007

  Here is a nice article about the unreliability of blacklists: http://www.theregister.co.uk/2007/07/08/blacklists_are_baaad/ Everyone that knows how easy it is to craft new identities can imagine how useful blacklists are. Hence, we tried to stay away from them in our IETF GEOPRIV Common Policy work and the recent work on avoiding Spam for Internet Telephony. Unfortunately, […]

Jul
11
2007

Henning Schulzrinne and myself have worked on a document that provides a high-level overview of the IETF emergency services architecture and shows the split of responsibilities. Furthermore, the appendix shows the 3GPP IMS emergency services architecture as a comparison.

Jul
10
2007

The EAP Generalized Pre-Shared Key (EAP-GPSK) method is a lightweight shared-key authentication protocol supporting mutual authentication and key derivation. Mutual authentication is achieved through a nonce-based exchange that is secured by a pre-shared key. All working group last call comments have been addressed. An implementation is available as part of the Host AP project, see http://hostap.epitest.fi/releases/snapshots/.




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