Unknown Key-Share Attacks on DNS-based Authentications of Named Entities (DANE)
draft-barnes-dane-uks-00

Document Type Expired Internet-Draft (individual)
Last updated 2017-04-12 (latest revision 2016-10-09)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-barnes-dane-uks-00.txt

Abstract

Unknown key-share attacks are a class of attacks that allow an attacker to deceive one peer of a secure communication as to the identity of the remote peer. When used with traditional, PKI-based authentication, TLS-based applications are generally safe from unknown key-share attacks. DNS-based Authentication of Named Entities (DANE), however, proposes that applications perform a different set of checks as part of authenticating a TLS connection. As a result, DANE as currently specified is likely to lead to unknown key-share attacks when clients support DANE for authentication. We describe these risks and some simple mitigations.

Authors

Richard Barnes (rlb@ipv.sx)
Martin Thomson (martin.thomson@gmail.com)
Eric Rescorla (ekr@rftm.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)