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:
May. 12, 2009
Filed:
Oct. 29, 2004
Ismail Cem Paya, Seattle, WA (US);
Josh D. Benaloh, Redmond, WA (US);
Raja P. Perumal, Kirkland, WA (US);
Trevin M Chow, Redmond, WA (US);
Erren Dusan Lester, Renton, WA (US);
Jeffrey Steinbok, Redmond, WA (US);
Julien D. Couvreur, Kirkland, WA (US);
Ismail Cem Paya, Seattle, WA (US);
Josh D. Benaloh, Redmond, WA (US);
Raja P. Perumal, Kirkland, WA (US);
Trevin M Chow, Redmond, WA (US);
Erren Dusan Lester, Renton, WA (US);
Jeffrey Steinbok, Redmond, WA (US);
Julien D. Couvreur, Kirkland, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A human interactive proof (HIP) service is described. In response to a request from a web server, the HIP service generates a HIP challenge and an associated attestation. The web server can then embed the generated HIP challenge in a requested web page. The attestation is used to determine whether or not a user response to the HIP challenge is correct.