A privacy-protecting coupon system
Liqun Chen, Matthias Enzmann, et al.
FC 2005
We propose simple and efficient CCA-secure public-key encryption schemes (i.e., schemes secure against adaptive chosen-ciphertext attacks) based on any identity-based encryption (IBE) scheme. Our constructions have ramifications of both theoretical and practical interest. First, our schemes give a new paradigm for achieving CCA-security; this paradigm avoids "proofs of wellformedness" that have been shown to underlie previous constructions. Second, instantiating our construction using known IBE constructions we obtain CCA-secure encryption schemes whose performance is competitive with the most efficient CCA-secure schemes to date. Our techniques extend naturally to give an efficient method for securing IBE schemes (even hierarchical ones) against adaptive chosen-ciphertext attacks. Coupled with previous work, this gives the first efficient constructions of CCA-secure IBE schemes. © 2006 Society for Industrial and Applied Mathematics.
Liqun Chen, Matthias Enzmann, et al.
FC 2005
Israel Cidon, Leonidas Georgiadis, et al.
IEEE/ACM Transactions on Networking
Nanda Kambhatla
ACL 2004
Xinyi Su, Guangyu He, et al.
Dianli Xitong Zidonghua/Automation of Electric Power Systems