The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2021
Filed:
Mar. 24, 2020
Index Systems, Inc., San Francisco, CA (US);
Jonathan Wall, San Francisco, CA (US);
Gautam S. Raj, Sunnyvale, CA (US);
INDEX SYSTEMS, LLC, San Francisco, CA (US);
Abstract
Methods and systems for encrypting sensitive information are disclosed comprising hashing sensitive information by a hash function and selecting a salt or key salt based, at least in part, on the hashed sensitive information. If a salt is selected, the selected salt is combined with the hashed sensitive information to yield combined sensitive information, which is encrypted and stored. If a key is selected, such as an AES key, for example, the sensitive information is encrypted by the selected encryption key, and stored. The keys and salts may be encrypted by a cryptographic processing system that generates and stores keys, such as a key management system and/or a hardware security module, for further protection. The salts may be concatenated into a binary large object prior to encryption. Methods and systems for updating of stored records comprising encrypted sensitive information are also described.