MUMBAI, India, June 22 -- Intellectual Property India has published a patent application (202641070700 A) filed by Prince Shri Venkateshwara Padmavathy Engineering College; Prince Dr K Vasudevan College Of Engineering And; Prince Shri Balaji Arts And Science College; and Prince Shri Venkateshwara Arts And Science College on June 06, 2026, for Key Aggregate Access Control Mechanism In Cloud Storage Using Kp-Abe.
Inventors include Prince Shri Venkateshwara Padmavathy Engineering; Prince Dr K Vasudevan College Of Engineering And; Prince Shri Balaji Arts And Science College; and Prince Shri Venkateshwara Arts And Science College.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: Attribute-based encryption (ABE), allows for fine-grained access control on encrypted data. In its key-policy the primitive enables senders to encrypt messages under a set of attributes and private keys are associated with access structures that specify which cipher texts the key holder will be allowed to decrypt. In most ABE systems, there is rapid increase in the cipher text size with the number of cipher text attributes and the only known exceptions support restricted forms of threshold access policies. This project proposes the key policy attribute-based encryption (KP-ABE) schemes allowing for non monotonic access structures (i.e., that may contain negated attributes) and with constant cipher-text size. The main feature that unique KP-ABE from other ABE scheme is pairing evaluation is reduced to constant.
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