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. 12, 2008
Filed:
Dec. 05, 2003
Anthony Yeates, Redmond, WA (US);
Pavel Dournov, Redmond, WA (US);
Kirk Blackwood, Bellevue, WA (US);
Anthony Yeates, Redmond, WA (US);
Pavel Dournov, Redmond, WA (US);
Kirk Blackwood, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Systems and methods are disclosed for storing sensitive data in a database, such as an application database or a dedicated application security database or store. In accordance with one aspect of the invention, user passwords are not directly stored in a database; but instead, when a password is entered, a one-way hash of the password phrase is produced for storage and/or comparison purposes. In accordance with another aspect, individual authorized application users are each aligned with their own version of an application-wide security key such that it becomes unnecessary to directly store the key in its original form. The security key is used to process sensitive data. In accordance with another aspect, a user's version of the application-wide security reflects an encryption-based relationship to the user's password. Various embodiments also support flexible access to particular collections of sensitive data based on user account and/or user role information.