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Using social information for authenticating a user session

A social network and social networking technology, applied in digital data authentication, instruments, computing, etc., can solve problems such as failure of CAPTCHA mechanism and failure of behavior

Active Publication Date: 2012-01-11
META PLATFORMS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

"However, existing CAPTCHA mechanisms can be foiled by a practice known as "CAPTCHA farming," in which automated algorithms temporarily redirect a CAPTCHA question to a human user to answer the CAPTCHA question and then return to its illegitimate purpose
If cheap manpower is available, it may render existing CAPTCHA mechanisms completely useless

Method used

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  • Using social information for authenticating a user session
  • Using social information for authenticating a user session
  • Using social information for authenticating a user session

Examples

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Embodiment Construction

[0012] CAPTCHAs based on distorted character recognition or common sense questions can be cracked by using human power. However, CAPTCHAs based on questions that require only a specific user to possibly know cannot be cracked by using human power. For example, a question requesting information associated with a user's close friends cannot be answered by anyone unfamiliar with the user. A CAPTCHA based on information about the user's social circle and the user's social interactions is called a social CAPTCHA. These questions ask for information that can be obtained in social networks.

[0013] A social network gives its members the ability to communicate and interact with other members of the social network. In use, members join a social network and then add connections to a number of other members with whom they desire to connect. As used herein, the term "friend" refers to any other member with whom a member forms a connection, association or relationship via a social netw...

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PUM

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Abstract

A social CAPTCHA is presented to authenticate a member of the social network. The social CAPTCHA includes one or more challenge questions based on information available in the social network, such as the user's activities and / or connections in the social network. The social information selected for the social CAPTCHA may be determined based on affinity scores associated with the member's connections, so that the challenge question relates to information that the user is more likely to be familiar with. A degree of difficulty of challenge questions may be determined and used for selecting the CAPTCHA based on a degree of suspicion.

Description

technical field [0001] The present invention relates to computer security, and in particular to preventing unauthorized use of computing resources by unauthorized persons or computing algorithms. Background technique [0002] The authenticity of a user interacting with a website can be determined in a number of ways, such as a challenge-response test that only the intended user is likely to be able to answer. This prevents unauthorized use of the computing resource by another user or by an automated computing algorithm. One type of challenge question for an automated computing algorithm is known as a CAPTCHA, an acronym for "Completely Automated Turing Test To Tell Computers and Humans Apart." A common type of CAPTCHA requires users to type letters or numbers based on distorted images that are difficult for computing algorithms to decipher, but relatively easy for humans to decipher. Requiring users to read distorted text for authentication prevents automated systems from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/04
CPCH04L63/083G06F21/31H04L67/02
Inventor L·J·舍帕德W·陈T·佩里L·波波维
Owner META PLATFORMS INC
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