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.

Abstract: Systems and methods may implement database technology using distributed logical unit repositories (DLURs). DLURs may use a database structure related to a specific logical unit such as a customer, employee, or the like. Information used in DLUR database structures may include data, database structure, functions, and the like that helps form a complete model for a logical unit. In one embodiment, queries to a system concerning entities can be answered immediately by accessing a database using DLURs, which obviates the need to consult a number of databases in parallel and greatly reduces memory and time required to provide the requested information.

Abstract: The invention comprises systems and methods for implementation of database technology using ‘Distributed logical unit repositories’ (DLUR). This is a new type of database which contains information and database structure related to a specific logical unit such as a customer, employee or the like. The information comprises data, database structure, functions, and any other data necessary to form a complete model of the information concerning the logical unit. Queries concerning entities can then be answered immediately by accessing this database, obviating the step of consulting a number of databases in parallel and greatly reducing memory and time required.