Method of secure communication based on commercial cipher algorithm

Abstract

The invention discloses a method of secure communication based on a commercial cipher algorithm. The method comprises the following steps: step 10, initializing connection between a client and a server is established; step 20, the client sends a session key negotiation request; step 30, the client and the server carry out session key negotiation; step 40, the client sends client device information for identity authentication; and step 50, the client and the server communicate in an encrypted way. According to the method of secure communication based on a commercial cipher encryption and decryption technology, key negotiation of a key exchange algorithm, a data encryption algorithm and a data integrity check algorithm is adopted to enable the client and the server to carry out bidirectional authentication and determine the session key, and a secure channel is established to prevent data eavesdropping, tampering and destruction and replay attack insertion in the data transmission process and ensure the security of data transmission. The method of the invention does not rely on a network access mode, can be implemented on any basic network, and can realize end-to-end security protection.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to a secure communication method based on a business secret algorithm. Background technique [0002] At present, the network is facing various threats, including leakage of confidential data, destruction of data integrity, identity masquerading and denial of service, etc. In response to these threats, some secure communication protocols have emerged as the times require. For example, the SSL protocol (Secure Socket Layer) was developed by Netscape to ensure the security of data transmission on the Internet, using data encryption technology to ensure that data will not be intercepted and eavesdropped during transmission on the network . It has been widely used for identity authentication and encrypted data transmission between web browsers and servers. [0003] Since the SSL protocol is based on a Web browser, it can well support B / S applications, but the support for C / S app...

AI Technical Summary

Problems solved by technology

[0003] Since the SSL protocol is based on a web browser, it can well support B / S applications, but the support for C / S applications is not perfect

Moreover, the key negotiation in the current SSL protocol uses the open source RSA algorithm and MD5 algorithm, and data encryption can only support international common algorithms such as AES, DES, and BF

It does not support my country's domestic commercial encryption technology

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