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Privacy-preserving information distributing system

A technology for information distribution and requesting information, which is applied in the direction of transmission system, electrical components, radio/inductive link selection arrangement, etc., and can solve problems such as system vulnerability

Inactive Publication Date: 2007-05-09
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above systems using secure websites are vulnerable

Method used

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  • Privacy-preserving information distributing system

Examples

Experimental program
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Embodiment Construction

[0028] Fig. 1 schematically shows an embodiment according to the invention. A user who wants to access information belonging to the content provider CP 120, such as an Internet-connected database, without revealing his actual identity to the information system 100, can do so by using a smart card SC 110 configured according to the invention. When a user wants to purchase access rights to some content, he contacts the content provider 120 by means of an anonymous channel requesting the rights. After implementing the anonymous payment scheme, the user sends 1 his public key PP 112 to the content provider 120, who then creates 2 the right or license 121 for the content. In a preferred embodiment, the content is encrypted by the content provider using a symmetric key SYM and issued to the user together with the license 121 . Preferably, the format of the license is {PP[SYM / / Rights / contentID]}signCP or {PP[SYM / / Rights / contentID]}, H(Rights), H(ContentID)signCP, where PP pair conca...

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PUM

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Abstract

A system, device and method for keeping the identity of a user secret, while managing requests for information, in an information distribution system. The identity of the user is kept secret by the use of a persistent pseudonym and a temporary pseudonym, which are associated with a user identity device. The process of information distribution is enhanced by the use of licenses and certificates, which the user obtains by representing himself with the permanent pseudonym. When accessing the requested information, the user is represented by the temporary pseudonym.

Description

technical field [0001] The present invention relates to information distribution systems in which users can request data information, and more particularly to information distribution systems for protecting user information. Background technique [0002] Currently, individuals are required to identify themselves when participating in many types of activities. Usually, when he uses a credit card, makes a phone call, pays taxes, subscribes to a magazine, or buys something over the Internet using a credit or debit card, an identifiable record of each transaction is created and recorded on a computer somewhere in the database. In order to obtain services or complete transactions using means other than cash, organizations require him to verify his identity. [0003] Consumer polls repeatedly show that they value their privacy and are concerned about the fact that so much personal information is routinely stored in computer databases beyond their control. Protecting one's ident...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04L29/06G06F21/00G06F21/31G06F21/33G06F21/34G06F21/44G06F21/60G06F21/62
CPCH04L63/0823H04L63/0421
Inventor C·V·康拉多M·佩特科维克W·永克
Owner KONINKLIJKE PHILIPS ELECTRONICS NV