© The Author(s) (Published by International Association for Cryptologic Research) Posted on February 27, 2014 by SCG DR Copyright Holders: © The Author(s) (Published by International Association for Cryptologic Research) Self-archiving policy Conditions Accepted version: √ Open Access Published version: X Open Access Remarks: Submission of an article to the Cryptology ePrint Archive implies that * the authors grant IACR a non-exclusive and irrevocable license to distribute the article under the CC BY (creative commons attribution) license; * or — by stating this in a footnote on the first page of the article — the authors grant IACR a non-exclusive and irrevocable license to distribute the article under the CC BY-NC (creative commons attribution-noncommercial) license; In the most common case authors have the right to grant this license because they hold the copyright in their own work. Verification Date: 26.02.2014