[http-state] SCS draft -01
tho <tho@koanlogic.com> Mon, 07 March 2011 07:47 UTC
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Date: Mon, 07 Mar 2011 08:47:51 +0100
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Cc: Lorenzo Cavallaro <lorenzo.cavallaro@gmail.com>, Steven Dorigotti <stewy@koanlogic.com>, tat@koanlogic.com, David Wagner <daw@cs.berkeley.edu>
Subject: [http-state] SCS draft -01
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Hello all, we have just published an updated version of the SCS draft which can be found at: http://tools.ietf.org/html/draft-secure-cookie-session-protocol-01 The major difference as compared to -00 is that, due to changed cookie-value encoding between -22 and -23 of draft-ietf-httpstate-cookie, the five SCS cookies have now been condensed into one anonymous cookie-value. Another significant delta from -00 is that the intro section has been rewritten to (hopefully) better describe the basic set of security services that SCS provides: cookie data confidentiality, cookie data integrity, and sender (i.e. origin) authentication. The former reasoning has been somewhat reversed, and the "no-storage session" scenario is now given as a natural outspring of the aforementioned properties. Last but not least, a bug in the authentication tag computation has been fixed (thanks David!). Other minor improvements concern inbound and outbound algorithms layout and a new section describing SCS cookie "inflation". The source code at http://github.com/koanlogic/libscs -- which has reached a fairly stable state -- fully implements the -01 spec. Any comment is welcome. t.