Information security transmission method, network access method and corresponding terminal

Abstract

The main purpose of the present invention is to provide a mobile terminal and an information security transmission method adopted therefor. The method includes the following steps: obtaining information to be transmitted; constructing a data message so that the data message contains secondary cipher text and secondary ciphertext; key, and the secondary ciphertext is encrypted by the primary key to encrypt the information to be transmitted to form a primary ciphertext, which is then encrypted by the secondary key containing a random factor; and the data message is sent. Correspondingly, the present invention also provides an intelligent terminal and a network access method thereof. The invention further strengthens the communication security effect of the fast connection technology realized based on the IEEE 802.11 protocol by improving the content expression loaded in the data message by means of the encryption technology.

Description

technical field [0001] The present invention relates to information security technology, in particular to a mobile terminal and an information security transmission method adopted therefor, and at the same time relates to an intelligent terminal and a network access method thereof. Background technique [0002] The control technology for intelligent terminal access to the target network is based on the technology specified by the IEEE 802.11 protocol, and has been vigorously developed, and its application is becoming more and more common. Based on the earliest AD-Hoc and WiFi Direct technologies, a direct connection relationship is established between the control terminal (sending terminal) and the receiving terminal, and then the configuration information for accessing the target network is transmitted, including the service set identifier of the target network and login password. The traditional direct connection method is inefficient due to the complex handshaking and sw...

AI Technical Summary

Problems solved by technology

The reason is that no matter whether the private key encryption based on symmetric encryption technology is used, or the public key encryption based on asymmetric encryption technology is used to encrypt the information to be transmitted, the key for encrypting the information to be transmitted is always fixed. Therefore, illegal Users can intercept the data packets generated during multiple transmissions for brute force cracking, or simulate the data packets of the sending end, launch a DDOS-like attack on the receiving end, paralyze the receiving end, and even cause other adjacent devices including WiFi routers to fail because of the need. Recognizing data frames suffers the same

[0006] On the other hand, in the current information transmission process, both the receiver and the sender need to abide by a fixed public or self-defined protocol. The sender cannot go beyond the established protocol and freely define the format of the information to be transmitted. Similarly, the receiver cannot flexibly analyze all information. Received data packets to obtain accurate original information, which shows the shortcomings of existing information transmission technology that is not flexible enough

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