Use of Fingerprints for Identifying Certificates in the Session Description Protocol (SDP)

Document Type Expired Internet-Draft (individual)
Author Martin Thomson 
Last updated 2014-04-24 (latest revision 2013-10-21)
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The Session Description Protocol (SDP) fingerprint attribute binds a session description to an X.509 certificate. This document describes how hash agility is achieved without backwards compatibility issues. This document also describes how the fingerprint attribute can be used to identify a set of valid certificates. This document updates RFC4572.


Martin Thomson (

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