SECURE DATA STORAGE

摘要

A method and apparatus for storing data and performing logical comparisons and other operations on said data, the results of said comparisons and operations reveal only limited information about the stored data. Stored data may include, but is not limited to, confidential information such as passwords, biometric data, credit card data, personal identifiers that uniquely identify an individual, authorisation levels where an entity may make a claim to have a certain level of access right or authorisation, votes cast in an election, and encryption keys. Control logic within the apparatus prevents direct access to the data store other than via a restricted command interface which prevents data from being revealed. For example, operations such as checking a putative password against a password in the data store is performed by the apparatus which returns a pass or fail, but does not reveal the stored password.

主权项

1. A comparator store apparatus, including a processor, a non-transitory memory and a first interface,
the memory configured to store information, wherein the information stored in the memory comprises indices and data associated with each index, the processor configured to receive data and an associated index via the first interface, and to store the data in association with the index in the memory as part of the stored information, the processor configured to receive comparison data, and an associated comparison index, via the first interface; to verify the comparison data in relation to the associated comparison index using the stored information, and to return via the first interface an indication of success or failure of the comparison data in relation to the associated comparison index, and wherein the information stored in the memory is not extractable from the memory via the first interface of the apparatus.