MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202621094763 A) filed by Maharashtra Knowledge Corporation Ltd on August 05, 2026, for A System And Method For Database Security Using Field-Level Encryption.

Inventors include Shaikh, Tanvir; Patil, Nilesh; and Deshpande, Prashant.

The application for the patent was published on September 25, 2026, under issue no. 39/2026.

Abstract: The present invention relates to a system (100) and a method (200) for database security using field-level encryption includes one or more processors (10), a memory (20), a database middleware interface (30), a policy configuration module (40), an encryption-mode selection module (50), a key management module (60), an encryption module (70), a query transformation module (80), a database communication module (90), a decryption module (92), an application communication module (94), and a data integrity verification module (96). The system (100) receives database operations generated by an application, applies field-specific encryption policies defined by a declarative encryption schema, derives field-specific cryptographic keys, and encrypts selected field values using respective encryption modes. The query transformation module (80) transforms queries for execution against encrypted data. Encrypted database records received through the database communication module (90) are verified by the data integrity verification module (96).

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