A Comparitive Study of Achievability of Security against Related-Key Attack
[作者] Mihir Bellare David Cash Rachel Miller
[单位] Department of Computer Science & Engineering, University of California San Diego Department of Electrical Engineering and Computer Science
[摘要] This paper begins with a practical contribution, namely a way to leverage the RKA security of blockciphers to provide RKA security for a suite of highlevel primitives. This motivates a more general theoretical …
[关键词] Related-key attack tamper-resistance pseudorandom functions signatures identity-based encryption
This paper begins with a practical contribution, namely a way to leverage the RKA security of blockciphers to provide RKA security for a suite of highlevel primitives. This motivates a more general theoretical question, namely, when is it possible to transfer RKA security from a primitive P_1 to a primitive P_2? We provide both positive and negative answers. What emerges is a broad and high level picture of the way achievability of RKA security varies across primitives, showing, in particular, that some primitives resist ``more'' RKAs than others. A technical challenge was to achieve RKA security even for the practical classes of related-key deriving (RKD) functions underlying fault injection attacks that fail to satisfy the ``claw-freeness'' assumption made in previous works. We surmount this barrier for the first time based on the construction of PRGs that are not only RKA secure but satisfy a new notion of identity collision resistance.
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原文发布时间:2011/5/20
引用本文:
Mihir Bellare;David Cash;Rachel Miller.A Comparitive Study of Achievability of Security against Related-Key Attack.http://ynau.firstlight.cn/View.aspx?infoid=1031917&cb=pongguiduanxg.
发布时间:2011/5/20.检索时间:2024/12/14