Abstract: Architectures and techniques for encrypting data stored in a database table. Data to be stored in the database table is encrypted on a sub-row basis. The encryption is performed using different encryption keys for each entity authorized to access the corresponding field. The encrypted data is stored in a selected row in the database table. An encrypted block of data from the row is sent to a requesting electronic device. The block of data includes the selected sub-row data and other encrypted data to be decrypted using an encryption key corresponding to the requesting electronic device. The encryption key allows decryption of the data corresponding to an authorized entity, but not all of the block of data.