Revise a Submission to TEST 2007

(*) Submission ID:	The submission-ID, as returned when the paper was first submitted.
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Any input below will overwrite existing information; no input means the old content remains intact.
Title:	The title of your submission
Authors:	Separate multiple authors with 'and' (e.g., Alice First and Bob T. Second and C. P. Third).
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Contact Email(s):	Comma-separated list with at least one valid email address of the form user@domain; for example: `first-author@university.edu, secondAuthor@company.com, third.one@somewhere.org`
Abstract:	The notion of \emph{key privacy} for encryption schemes was defined formally by Bellare, Boldyreva, Desai and Pointcheval in Asiacrypt 2001. This notion seems useful in settings where anonymity is important. In this short note we describe a (very simple) sufficient condition for key privacy. In a nutshell, a scheme that provides data privacy is guaranteed to provide also key privacy if the distribution of \emph{a random encryption of a random message} is independent of the public key that is used for the encryption. Use only plain ASCII and LaTeX conventions for math, but no HTML tags.
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