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Key negotiation method and device

A key agreement and cryptographic algorithm technology, applied in the field of key agreement, can solve problems affecting user experience and achieve the effect of optimizing user experience

Inactive Publication Date: 2016-04-27
CHINA CONSTRUCTION BANK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, IE (Internet Explorer, a web browser) core browser (mainstream browser for key negotiation) only supports the RSA algorithm. It will not be possible to use the IE core browser for key negotiation, which affects the user experience

Method used

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Embodiment Construction

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] figure 1 It is a flowchart of a key agreement method according to an embodiment of the present invention. see figure 1 , the method includes:

[0018] S100: The client identifies the encryption algorithm supported by the online banking shield.

[0019] Wherein, the encryption algorithm may be an RSA algorithm, or a national secret algorithm, and the like.

[0020] S200: The client invokes an interface supporting the encryption algorithm to perform key negotiation with the SSL server.

[0021] In the implementation manner of the present invention, the interface may be pre-configured on the client. Wherein, the interface may be a CSP (CryptographicServiceProvider, encryption service provider) interface or an SKF (national secret stan...

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Abstract

The invention provides a key negotiation method and device. The method comprises the steps that: a client identifies a password algorithm supported by an E-bank shield; and the client schedules an interface supporting the password algorithm to negotiate a key with a security socket layer SSL server. By implementing the key negotiation method and device provided by the invention, the client can be compatible with different password algorithms to carry out key negotiation, therefore the user experience is optimized.

Description

technical field [0001] The present invention relates to the communication field, and more specifically, to a method and device for key negotiation. Background technique [0002] According to a report from a world-renowned research institution, the 1024-bit RSA (a public key encryption algorithm named after the three inventors Rivest, Shamir, and Adleman) keys should only be used By 2010, 2048-bit RSA keys should only be used until 2030, and 3072-bit RSA keys can be used until after 2030. The solution to enhance the security of the RSA algorithm is to increase the key modulus length of the RSA algorithm, but the increase of the key length will greatly reduce the speed of encryption and decryption, and the hardware implementation will become more and more complicated, which will bring great harm to the application of the RSA algorithm. It brings a great burden, so that its scope of application is increasingly restricted. At the same time, the application period of this scheme...

Claims

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Application Information

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IPC IPC(8): H04L9/08H04L29/06
CPCH04L9/0838H04L63/06
Inventor 解敏廖敏飞吴孟晴李文鹏刘丽娟董思许腾谭世殊何伟明
Owner CHINA CONSTRUCTION BANK