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Chosen ciphertext secure public key threshold encryption without random oracles. (English) Zbl 1125.94012
Pointcheval, David (ed.), Topics in cryptology – CT-RSA 2006. The cryptographers’ track at the RSA conference 2006, San Jose, CA, USA, February 13–17, 2006. Proceedings. Berlin: Springer (ISBN 3-540-31033-9/pbk). Lecture Notes in Computer Science 3860, 226-243 (2006).
Summary: We present a non-interactive chosen ciphertext secure threshold encryption system. The proof of security is set in the standard model and does not use random oracles. Our construction uses the recent identity based encryption system of D. Boneh and X. Boyen [Advances in cryptology – EUROCRYPT 2004. Lect. Notes Comput. Sci. 3027, 223–238 (2004; Zbl 1122.94355)] and the chosen ciphertext secure construction of R. Canetti, S. Halevi and J. Katz [Advances in cryptology – EUROCRYPT 2004. Lect. Notes Comput. Sci. 3027, 207–222 (2004; Zbl 1122.94358)].
For the entire collection see [Zbl 1098.94003].

MSC:
94A60 Cryptography
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