Dynamic information encrypting system and method

Abstract

The invention relates to a dynamic information encryption system that includes input interface, encryption module which is used to generate the time changed cryptogram for the source information, output interface which is used to output the said cryptogram, and the said encryption module is connected between the input interface and the output interface. The invention also relates to a dynamic information encryption method: A1) the input interface receives the source information and sends the plaintext to the programmable encryption device; A2) the programmable encryption device receives the plaintext from the input interface, the commands from the encryption device and the time-effect information from the time marking device; A3) the programmable encryption device chooses the encryption algorithm according to the commands, and does the combined encryption for the plaintext, commands and the time-effect information; A4) the programmable encryption device sends the encryption files to the output interface. The dynamic information encryption system and method improves the security of original information input by the computer, and the cryptograph has bogus randomness, even if the cryptograph is intercepted and it can't be used.

Description

technical field [0001] The present invention relates to the field of information security, more specifically, to an information encryption system and method. Background technique [0002] In the era of network information, information resources have become the strategic resources of human society, and information technology has become the premise and pillar of the knowledge economy and one of the core technologies for competition among countries around the world. Information security has increasingly become a bottleneck that restricts the in-depth development of the information industry and its wide application in society, and has become a crucial issue related to the national and national economic interests and national defense security. [0003] At present, the continuous development and application of the Internet and various local area networks have brought about tremendous changes in our way of life and work. We have entered or are entering a new information age. With t...

AI Technical Summary

Problems solved by technology

[0005] The existing keyboard encryption system uses a fixed encryption algorithm, which is easy to be cracked, and can also directly use the intercepted ciphertext for transactions

The patent application number is 99125238.1 proposes a dynamic encryption method, specifically, the platform responsible for decryption sends an encrypted random number to the encryption device before one encryption, and the encryption device converts the same plaintext into different encryptions according to the random number. Wen; with this method, the encryption process requires the participation of a decryption device, and the encryption algorithm is also fixed. For applications with high confidentiality requirements, the security of the above schemes is not high.

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