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certificate authority

A certificate, digital certificate technology, applied in the direction of digital transmission system, electrical components, transmission system, etc.

Active Publication Date: 2016-06-29
NOKIA NETWORKS OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution exposes some security risks

Method used

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Embodiment Construction

[0036] The inventors of the present invention have realized that many of the problems associated with prior art certificate signing and handling protocols can be solved by using an identity management system to provision and process certificates thereby providing an IDM based PKI. As discussed in detail below, this solution combines a high level of security with a high level of flexibility. For example, the system of the present invention is flexible enough to revoke a certificate, eg, if the user is no longer reputable or trustworthy. Also, the certificate can be supplemented with user-related attributes (such as the user's date of birth) that can be verified by the IDM.

[0037] "Identity Management" describes various techniques used to enable portability of identity information across otherwise autonomous security domains. The goal of identity management (sometimes called identity federation) is to enable users in one domain to seamlessly and securely access data or system...

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Abstract

A protocol for issuing and controlling digital certificates is described in which an identity management system is used to identify a user requesting a digital certificate and is also used to issue the digital certificate itself. Accordingly, an IDM-based PKI system is provided.

Description

technical field [0001] The present invention is directed to certificate authorities used to issue digital certificates, typically for use with public key cryptographic algorithms. Background technique [0002] Public-key cryptography is a well-established technique that uses asymmetric keys to provide security. As is well known in the art, public and private key pairs can be generated, where the private key is kept secret and the public key is widely published. Any message encrypted with a particular public key can only be decrypted with the corresponding private key. Similarly, any message encrypted using a particular private key can only be decrypted using the corresponding public key. Importantly, the public and private keys are mathematically related, but the private key cannot feasibly be derived from the public key. Therefore, knowing the public key does not enable the private key to be determined. [0003] figure 1 A system generally indicated by reference number...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L9/006H04L9/3268H04L63/0823H04L63/102
Inventor R.赛德尔N.格特策M.鲍尔-赫尔曼
Owner NOKIA NETWORKS OY