Encryption directed database management system and method
AssigneeK2View Ltd.
InventorsEinav ITAMAR, Achi ROTEM
Life of this patent
Estimating the term…
Abstract
A granular encryption database management system characterized by hierarchical internal key management using asymmetric encryption of the user's keys, which are stored within a (local) encryption key table. Data is encrypted, decrypted, stored, and accessed from rows within the database (hereinafter ‘instances’). Instances are ordered in categories called Types. Instances are encrypted with Instance keys. All instances of the same type have their Instance keys generated by means of a hash function of their common Type's key, while Type keys are generated from the key of the higher category which is often the Master key of the whole system.
Claims6
A granular encryption database management system having hierarchical internal key management using asymmetric encryption of the keys, wherein, data is encrypted, decrypted, stored, and accessed from Instances which are ordered in Types, and further wherein instances are encrypted with Instance keys that are generated by hashing their Type key and their identifier, while Type keys are generated by hashing the Master key and their identifier, wherein said keys are stored in an encryption key table.
Dependencies are inferred from the claim text.