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:
Jul. 13, 2010
Filed:
Jun. 15, 2005
Christopher J. Crall, Seattle, WA (US);
Karthik Jaganathan, Redmond, WA (US);
Liqiang Zhu, Kirkland, WA (US);
Paul J. Leach, Seattle, WA (US);
Christopher J. Crall, Seattle, WA (US);
Karthik Jaganathan, Redmond, WA (US);
Liqiang Zhu, Kirkland, WA (US);
Paul J. Leach, Seattle, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A domain controller (DC) side plugin supports one time passwords natively in Kerberos, Part of the key material is static and the other part is dynamic, thereby leveraging properties unique to each to securely support one time passwords in an operating system. The user is permitted to type in the one time passcode into a logon user interface. Rather than calling the SAM APIs to get the static passwords, vendors may register callbacks on the DC to plugin their algorithm. These callback functions will return the dynamically calculated passcodes for the user at a specific point in time. This passcode will then be treated as a normal password by the DC.