Security Protocols: 11th International Workshop, Cambridge, by Bruce Christianson (auth.), Bruce Christianson, Bruno

By Bruce Christianson (auth.), Bruce Christianson, Bruno Crispo, James A. Malcolm, Michael Roe (eds.)

Greetings. those are the complaints of the eleventh in our sequence of overseas Workshops on protection Protocols. Our topic this time was once “Where have the entire Protocols gone?” as soon as upon a time safety protocols lived normally within the community and delivery layers. Now they more and more conceal in functions, or in specialized undefined. Does this pattern result in greater safety architectures, or is it a sign that we're addressing the inaccurate difficulties? The purpose of the workshops is to supply a discussion board the place incompletely workedoutideascanstimulatediscussion,openupnewlinesofinvestigation,and suggestmoreproblems. The positionpaperspublished herehavebeen revisedby the authors within the mild in their participation within the workshop. furthermore, we submit edited transcripts of a few of the discussions, to offer our readers entry to a couple of the roads forward now not (yet) taken. we are hoping that those revised place papers and edited transcripts offers you at the least one fascinating concept of your individual to discover. Please do write and let us know what it used to be. Our objective in publishing those complaints is to supply a conceptual map with a purpose to be of tolerating curiosity, instead of to be only topical. this is often possibly simply in addition, given the hold up in creation. This 12 months we moved to new computer-based recording know-how, and naturally it failed completely.

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Extra info for Security Protocols: 11th International Workshop, Cambridge, UK, April 2-4, 2003, Revised Selected Papers

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B. Christianson et al. ): Security Protocols 2003, LNCS 3364, pp. 28–41, 2005. c Springer-Verlag Berlin Heidelberg 2005 Man-in-the-Middle in Tunnelled Authentication Protocols 29 easy-to-use tools or methodologies to verify the correctness of security protocols makes protocol re-use a risky task. Faced with this difficulty, designers who needed to re-use legacy client authentication protocols and/or security associations have been customarily using an obvious approach to secure legacy client authentication protocols when there is a need to re-use them in a new scennario.

Finally, a brief status update is provided in section 8. 1 IETF Drafts on Tunnelled Authentication Protocols The General Model In this section, we present a general description of how tunnelled authentication protocols are usually constructed. Although we discuss examples that use extensible authentication protocol (EAP) as the inner client authentication protocol, the discussion is applicable for any tunnelled authentication protocol. EAP, described in RFC2284 [17], is a standard framework for client authentication protocols.

But the most difficult aspect of deployment is the cost of provisioning initial security associations, especially to end user devices. Consequently, there is considerable pressure to reuse security protocols and security context databases beyond their originally intended purposes and environments. Re-use is generally considered good practice. However, when security protocols and components are reused, it is critical to re-examine the security of the resulting system as a whole. This is particularly important when different components of the composition have different endpoints, either in different layers in the same entity, or different entities altogether.

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