In conventional Ciphertext-Policy Attribute-Based Encryption (CP- ABE), the access policy appears in plaintext form that might reveal confidential user information and violate user privacy. CP-ABE with hidden access policies hides all attributes, but the computational burden increases due to the attribute hiding.
Dec 31, 2021 · CP-ABE with hidden access policies hides all attributes, but the computational burden increases due to the attribute hiding.
Feb 3, 2021 · In this work, we introduce a novel method to protect the privacy of CP-ABE scheme by keyword search (KS) techniques.
In this article, we have built a CP-ABE solution (PHCA) that supports policy-hiding and cloud auditing to ensure privacy security for smart health.
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Oct 22, 2024 · The user can decrypt the ciphertext if and only if the attribute set of his secret key satisfies the access policy specified in the ciphertext.
In key-policy attribute based encryption, ciphertexts are associated with sets of descriptive at- tributes, and users' keys are associated with policies. (the ...
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Our first system allows an encryption algorithm to specify an access formula in terms of any access formula. In fact our techniques are slightly more general.
In this paper, we propose a new CP-ABE scheme with hidden access policy. We prove the scheme is selectively secure in standard model. Security in our scheme is ...
Ciphertext Policy - Attribute Based Encryption (CPABE) has emerged as a feasible solution to address challenges of access control to a diverse set of users.
The user can decrypt the ciphertext if and only if the attribute set of his secret key satisfies the access policy specified in the ciphertext. In the present ...