Cryptology ePrint Archive: Report 2011/432

Ciphers that Securely Encipher their own Keys

Mihir Bellare and David Cash and Sriram Keelveedhi

Abstract: In response to needs of disk encryption standardization bodies, we provide the first tweakable ciphers that are proven to securely encipher their own keys. We provide both a narrowblock design StE and a wideblock design EtE. Our proofs assume only standard PRP-CCA security of the underlying tweakable ciphers.

Category / Keywords: secret-key cryptography / ciphers, disk encryption, key-dependent messages

Publication Info: Preliminary version appears in Proceedings of ACM CCS 2011 conference. This is the full version.

Date: received 11 Aug 2011, last revised 8 Oct 2011

Contact author: sriramkr at cs ucsd edu

Available format(s): Postscript (PS) | Compressed Postscript (PS.GZ) | PDF | BibTeX Citation

Version: 20111009:014828 (All versions of this report)

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