Checking method of real-time transmission encryption and decryption data

Abstract

The invention discloses a checking method of real-time transmission encryption and decryption data, which comprises the following steps that: after being sent from the sending end, the data is encrypted by encryption equipment and is then sent to a signal channel for transmission; then, the data is received by the receiving end after being decrypted by decryption equipment; data checking codes and the data are sent from the sending end at the same time; and after the data passes through encryption and decryption equipment and decryption equipment, the received data is checked at the receiving end. The invention provides the checking technology applicable to real-time transmission encryption and decryption data by aiming at the characteristics of no retransmission and no error correction of the real-time transmission encryption and decryption data, the checking link of the encryption and decryption data by the encryption and decryption equipment is omitted, and the data processing and transmission capability of the encryption and decryption equipment can be improved.

Description

technical field [0001] The invention belongs to the field of data communication, and in particular relates to a verification method for real-time transmission of encrypted and decrypted data. Background technique [0002] With the rapid development of informatization and networking, the security of data transmission has become more and more important. Encrypting the data transmitted on the channel is an important means of protecting secret information. In some systems with high security requirements, the sending end often needs to encrypt the data through the encryption machine before sending it to the channel for transmission, and the data received by the receiving end needs to be decrypted by the decryption machine before it can be used. Therefore, a batch of data from the sending end to the receiving end has to go through the sending end→encryption machine encryption→decryption machine decryption→receiving end, during which at least three data transmissions have been perf...

AI Technical Summary

Problems solved by technology

Due to the influence of many factors such as transmission distance, site conditions, interference, etc., some unpredictable errors often occur in the data transmitted between devices

These errors need to be notified to the receiving end. In general, you can send a command to terminate the current data reception or attach the communication status of the previous stage to the information and forward it to the subsequent stage. However, these methods have certain limitations in use. In real-time systems, Will increase the amount of information processed and transmitted

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