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Improving the Message-ciphertext Rate of Lewko's Fully Secure IBE Scheme
DLIN assumption fully secure IBE canceling parameter hiding dual system encryption
2013/4/18
In Eurocrypt 2012, Lewko presented a fully secure IBE scheme in the prime order setting based on the decisional linear assumption. We note that some random factor involved in the ciphertext can furthe...
Dual System Encryption:Realizing Fully Secure IBE and HIBE under Simple Assumptions
Dual System Encryption Secure IBE HIBE
2009/8/18
We present a new methodology for proving security of encryption systems using what we call
Dual System Encryption. Our techniques result in fully secure Identity-Based Encryption (IBE)
and Hierarchi...