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Quantum Resistant Ciphertext-Policy Attribute-Based Encryption Scheme with Flexible Access Structure. (arXiv:2401.14076v1 [cs.CR])
cs.CR updates on arXiv.org arxiv.org
In this paper, we present a novel ciphertext-policy attribute based
encryption (CP-ABE) scheme that offers a flexible access structure. Our
proposed scheme incorporates an access tree as its access control policy,
enabling fine-grained access control over encrypted data. The security of our
scheme is provable under the hardness assumption of the decisional
Ring-Learning with Errors (R-LWE) problem, ensuring robust protection against
unauthorized access. CP-ABE is a cryptographic technique that allows data
owners to encrypt their data with access policies defined …
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