Method and apparatus for sequential authentication using one or more error rates characterizing each security challenge

US8930709B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8930709-B2
Application numberUS-5747008-A
CountryUS
Kind codeB2
Filing dateMar 28, 2008
Priority dateJun 23, 2005
Publication dateJan 6, 2015
Grant dateJan 6, 2015

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Abstract

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Methods and apparatus are provided for sequential authentication of a user that employ one or more error rates characterizing each security challenge. According to one aspect of the invention, a user is challenged with at least one knowledge challenge to obtain an intermediate authentication result; and the user challenges continue until a cumulative authentication result satisfies one or more criteria. The intermediate authentication result is based, for example, on one or more of false accept and false reject error probabilities for each knowledge challenge. A false accept error probability describes a probability of a different user answering the knowledge challenge correctly. A false reject error probability describes a probability of a genuine user not answering the knowledge challenge correctly. The false accept and false reject error probabilities can be adapted based on field data or known information about a given challenge.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for sequential authentication of a user, comprising: challenging said user with at least one knowledge challenge to obtain an intermediate authentication result, wherein said intermediate authentication result is based on one or more of false accept and false reject error probabilities for each knowledge challenge, wherein said false accept and false reject error probabilities for a current challenge are updated based on information from one or more…

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What does patent US8930709B2 cover?
Methods and apparatus are provided for sequential authentication of a user that employ one or more error rates characterizing each security challenge. According to one aspect of the invention, a user is challenged with at least one knowledge challenge to obtain an intermediate authentication result; and the user challenges continue until a cumulative authentication result satisfies one or more …
Who is the assignee on this patent?
Navratil Jiri, Osborn Ryan L, Pelecanos Jason W, and 3 more
What technology area does this patent fall under?
Primary CPC classification H04L63/0861. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).