Title

A Generic Construction of Accountable Decryption and Its Applications

Publication Type

Conference Proceeding Article

Publication Date

2012

Abstract

We propose a new cryptographic notion called accountable decryption by which, given a ciphertext, a decryptor proves both the correctness of his decryption and the plaintext authenticity to a public verifier. We define its security from three aspects: message confidentiality, soundness of verifiability and plaintext authenticity. Given any asymmetric or symmetric key encryption scheme, we propose a method to construct the corresponding accountable decryption scheme with provable security. To demonstrate its applications, we also present the constructions for predicate encryption and for public-key encryption with keyword search.

Discipline

Information Security

Research Areas

Information Security and Trust

Publication

Proceedings of the 17th Australasian Conference on Information Security and Privacy (ACISP 2012)

First Page

322

Last Page

335

ISBN

9783642314476

Identifier

10.1007/978-3-642-31448-3_24

Publisher

Springer Verlag

Additional URL

http://dx.doi.org/10.1007/978-3-642-31448-3_24