Realizing Chosen Ciphertext Security Generically in Attribute-Based Encryption and Predicate Encryption

ADVANCES IN CRYPTOLOGY - CRYPTO 2019, PT II, pp. 671-700, 2019.

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Abstract:

We provide generic and black box transformations from any chosen plaintext secure Attribute-Based Encryption (ABE) or One-sided Predicate Encryption system into a chosen ciphertext secure system. Our transformation requires only the IND-CPA security of the original ABE scheme coupled with a pseudorandom generator (PRG) with a special secu...More

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