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:
Feb. 05, 2013
Filed:
Jul. 29, 2008
Rhonda L. Childress, Austin, TX (US);
Itzhack Goldberg, Hadera, IL;
Moriel Lechtman, Haifa, IL;
Yotam Medini, Binyamina, IL;
Rhonda L. Childress, Austin, TX (US);
Itzhack Goldberg, Hadera, IL;
Moriel Lechtman, Haifa, IL;
Yotam Medini, Binyamina, IL;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Password aging based on the strength of the password provides an incentive for users to generate and/or memorize more complex passwords. The strength of the password is computed from a formula that relates the length of the password and the types of characters contained in the password to a strength value, which can be performed using a lookup table having values for different characteristics of the password, determining partial strength values corresponding to the ranges in which the characteristics fall, and then adding the partial strength values. Alternatively, a separate password strength application may be used to provide the strength value, which is entered by the user or administrator generating a new password. Alternatively, the password may be generated based on a specified desired expiration period, with the strength computation performed to ensure that the strength is sufficient to merit the desired expiration period.