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A method of two-way authentication

A two-way authentication and authentication server technology, applied in the field of digital rights management, can solve the problems of large ciphertext diffusion and low efficiency, and achieve the effect of short ciphertext length and high encryption efficiency

Inactive Publication Date: 2011-12-21
天柏宽带网络技术(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If two-way authentication is to be achieved, two RSA cryptosystems must be used, which is obviously less efficient. Secondly, the two-way authentication using the RSA cryptosystem cannot avoid impersonation of the server or client. The RSA cryptosystem has a large diffusion of ciphertext. The length of the ciphertext requires 2 times expansion

Method used

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Embodiment Construction

[0046] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. In the specific embodiment of the present invention, be divided into four steps:

[0047] A. The user terminal registers with the authentication server;

[0048] B. Key negotiation between the user terminal and the authentication server;

[0049] C. Two-way authentication between the user terminal and the authentication server;

[0050] D. The user terminal acquires a license for content playback.

[0051] The key agreement in step A and the key agreement in step B cannot replace each other, because the purpose of the former is for user registration, and the security requirements are not high; while the latter requires the shared secret number between the user terminal and the authentication server, and Security requirements are high, and the negotiated key is used for mutual identity authenticatio...

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Abstract

The invention discloses a two-way authentication method, which is applicable to the field of digital copyright management of interactive network TV. A user terminal registers to an authentication server; a key negotiation is performed between the user terminal and the authentication server; Two-way authentication; the user terminal obtains a license certificate for content playback. By adopting the technical scheme of the present invention, the advantages of high ECC encryption efficiency and short ciphertext length can be used to establish two-way authentication between the server and the client of IPTVDRM; before the two-way authentication, the key negotiation protocol is adopted to obtain the session key, Then use the two-way certificate to authenticate the identities of both parties, and prevent the certificate from being tampered with during the transmission process; the two-way authentication using the certificate makes the authentication effective and the encryption and decryption efficiency is higher than that of the RSA two-way authentication, and allows both parties to obtain each other's information in plain text to confirm the other party at the same time No plaintext information will be leaked.

Description

technical field [0001] The invention relates to the technical field of digital copyright management of interactive network television, in particular to a two-way authentication method. Background technique [0002] Interactive Internet TV (IPTV) is a brand-new technology that utilizes broadband cable TV network and integrates Internet, multimedia, communication and other technologies to provide home users with a variety of interactive services including digital TV. Users can enjoy IPTV services in three ways at home: computer; set-top box + ordinary TV; mobile phone. It can well adapt to the rapid development trend of today's network and make full and effective use of network resources. IPTV is not only different from traditional analog cable TV, but also different from classic digital TV. Because both traditional and classic digital TV have the characteristics of frequency division system, timing, and one-way broadcasting, etc., which greatly limit the interaction between...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L9/08H04H60/23H04N21/254
Inventor 辛宇马兆丰陈铭武嘉赖龙生国鹏飞孙宝寅秦虎
Owner 天柏宽带网络技术(北京)有限公司
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