Self-adaptation hybrid encryption method and device and encryption communication system

Abstract

The invention provides a self-adaptation hybrid encryption method which includes the following steps that data types are firstly judged, text type data will enter an AES channel to be processed, and English data similar to a-z will be converted into corresponding ASCII data to be encrypted; non-text type data will enter a next selection channel so that the size of the data can be judged, the data smaller than 128bit will enter the AES channel to be encrypted, and the data larger than 128bit enters a data signature channel to be encrypted if necessary, the data on which digital signature needs to be performed will enter an ECC channel to be processed, and otherwise the data will enter an RSA channel to be encrypted. The self-adaptation hybrid encryption method integrated three kinds of encryption algorithms, selectivity of encryption functions is greatly improved, kinds of data encryption are provided for a user and comprise basic digital signature and identity authentication, different data sizes will be automatically transferred into corresponding encryption modules, in addition, the encryption algorithms are all achieved through hardware circuits, and compared with software encryption, the encryption speed of the data is improved.

Description

technical field [0001] The invention belongs to the field of network communication security, and relates to an adaptive encryption method, a device applying the method and an encryption communication system. Background technique [0002] With the continuous improvement of Internet infrastructure, the continuous introduction of new technologies and new applications, the rapid development of the e-commerce industry, its user demand has increased significantly, the business model has become increasingly mature, and the market scale has expanded rapidly. However, due to the developmental characteristics of the Internet, the security of data transmission also restricts the development of e-commerce from beginning to end. Therefore, establishing a safe and reliable e-commerce application environment has become a key issue affecting the development of e-commerce. At present, domestic encryption platforms are mainly divided into two types, dedicated encryption chips and software en...

AI Technical Summary

Problems solved by technology

[0004] However, Document 1 only distributes the key according to the transmission protocol, and does not consider the situation that the key is insufficient or exceeds the predetermined range

And the three encryption algorithms it uses are all symmetric encryption algorithms, and AES encryption is an optimized upgrade of DES and 3DES. There are many similarities in the algorithm, and it is not suitable for encryption of data with multiple bit widths.

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