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On the Optimal Succinctness and Efficiency of Functional Encryption and Attribute-Based Encryption
Oct. 5, 2022, 6:36 a.m. |
IACR News www.iacr.org
ePrint Report: On the Optimal Succinctness and Efficiency of Functional Encryption and Attribute-Based Encryption
Aayush Jain, Huijia Lin, Ji Luo
In this work we investigate the asymptotically best-possible succinctness and efficiency of functional encryption (FE) and attribute-based encryption (ABE), focusing on simultaneously minimizing the sizes of secret keys and ciphertexts and the decryption time. To this end, we consider the notion of partially hiding functional encryption (PHFE) that captures both FE and ABE, and the most efficient computation model of …
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