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:
Mar. 17, 2020
Filed:
Jul. 27, 2017
International Business Machines Corporation, Armonk, NY (US);
Debbie Anglin, Williamson, TX (US);
Howard Anglin, Leander, TX (US);
Su Liu, Austin, TX (US);
Yu Liu, Beijing, CN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An example operation may include one or more of determining whether one or more password strings are related to a password, the password strings are transmitted from a user device, hashing the one or more password strings to create one or more password hash values, determining whether the one or more password hash values match any internal password hash values of an internal password history chain stored in an internal blockchain, determining whether the one or more password hash values match any external password hash values of an external password history chain stored in an external blockchain, and responsive to determining the one or more password hash values do not match any internal password hash value and any external password hash values, storing a new password in one or more of the internal blockchain and the external blockchain.