Ciphers that securely encipher their own keys

Authors:
Mihir Bellare;David Cash;Sriram Keelveedhi
Affiliations:
University of California San Diego, San Diego, CA, USA;IBM, Yorktown Heights, USA;University of California San Diego, San Diego, CA, USA
Venue:
Proceedings of the 18th ACM conference on Computer and communications security
Year:
2011

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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.