Remote wireless encryption communication technology based on flexible encryption and decryption cards

Abstract

The invention relates to a remote wireless communication encryption technology and specifically relates to a remote wireless encryption communication technology based on flexible encryption and decryption cards. The invention aims at solving the data secure problem of remote wireless communication and provides a data secure transmission scheme based on the flexible encryption and decryption cards. For this purpose, according to the technology, an insertion card for encryption and decryption needs to be provided. Encryption and decryption algorithms are contained in the encryption and decryption cards. Data communication can be realized successfully only if the encryption and decryption algorithms match each other, otherwise, remote communication device data messages cannot be accurately identified, and the data is discarded. According to the remote wireless encryption communication technology based on the flexible encryption and decryption cards disclosed by the invention, a main structure comprises four parts: a wireless encryption transmitter, a wireless decryption receiver, the encryption card and the decryption card.

Description

technical field [0001] The invention relates to long-distance wireless communication encryption technology, in particular to a wireless encryption communication technology based on a flexible encryption and decryption card. Background technique [0002] Long-distance wireless communication is widely used. In some applications, communication data needs to be encrypted and decrypted. The purpose of encryption and decryption is to enhance the security of communication. Typical encryption methods such as: shift cipher, single-table replacement cipher, etc. In Shuai Mengxia’s 2011 document "An Encryption Algorithm Based on Dynamic Circular Substitution Table", on the basis of in-depth research on single-table replacement ciphers, combined with byte swapping Based on the cyclic shift idea, an encryption algorithm based on a dynamic cyclic substitution table is proposed, which is relatively complicated. However, modern wireless communication devices generally fix the encryption al...

AI Technical Summary

Problems solved by technology

Typical encryption methods such as: shift cipher, single-table replacement cipher, etc. In Shuai Mengxia's 2011 document "An Encryption Algorithm Based on Dynamic Loop Substitution Table", based on the in-depth study of single-table replacement cipher, combined with byte swapping Based on the idea of ​​cyclic shifting, an encryption algorithm based on a dynamic cyclic substitution table is proposed, which is relatively complicated

However, modern wireless communication devices generally fix the encryption algorithm in the internal chip of the device, and use a single algorithm in the communication process. Even if the algorithm is complex, as long as the cracker has accumulated enough ciphertext and uses statistics and analysis methods, It is very likely to realize the decryption of the ciphertext, which reduces the security of communication

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