The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2026
Filed:
Jan. 29, 2025
Dell Products L.p., Round Rock, TX (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
A system for secure searchable encryption with semi-hidden access control is disclosed. The system enhances data privacy and security by segregating attribute names from their encrypted values, allowing attribute names to remain in plaintext for search operations while keeping attribute values confidential. A trapdoor privacy module generates encrypted trapdoors using a secret cryptographic element and a hash function, ensuring keyword security even if trapdoors are intercepted. The system stores encrypted data and indices on a cloud server, facilitating secure search operations without exposing sensitive data. A ciphertext authenticity module verifies the integrity of ciphertexts using digital signatures, ensuring data authenticity and protection against unauthorized modifications. This approach enables data users to perform secure keyword searches on the cloud server, retrieving requested data without revealing search keywords, thereby providing a robust framework for secure searchable encryption.