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.

Date of Patent:
Apr. 26, 2016

Filed:

Dec. 19, 2011
Applicant:

BO Lovmand, Hadsten, DK;

Inventor:

Bo Lovmand, Hadsten, DK;

Assignee:

Vestas Wind Systems A/S, Aarhus N, DK;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); G06F 21/33 (2013.01); G06F 21/62 (2013.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0823 (2013.01); G06F 21/33 (2013.01); G06F 21/335 (2013.01); G06F 21/62 (2013.01); H04L 9/3268 (2013.01); H04L 63/0892 (2013.01); H04L 63/205 (2013.01); Y04S 40/24 (2013.01);
Abstract

A method for authorization of a user to access a computer system locally at a site is described. The computer system determines whether a network connection to a remote authentication source is available. If the network connection is available, the computer system authenticates the user by interaction with the remote authentication source. If the network connection is not available, the computer system authenticates the user against a credential provided by the user. In this case, the credential will have been provided by or validated by the remote authentication source less than a predetermined time prior to the authenticating step, and the credential is a certificate issued by a certificate authority already trusted by the computer system and valid for a predetermined period of time. A suitable computer system is also described.


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