A mixed encryption method in session system

Abstract

A mixed encryption scheme for a conference system is provided. The encrypting algorithm is that: before data communication, a message clear text is encrypted by using a DES method, and then the DES key is encrypted adopting an RSA method, so as to realize digital signature. By comprehensively using the existing encrypting algorithms DES and RSA, the strong points of which are utilized and the weak points are avoided. As the processing for main data adopts the DES encrypting algorithm, grouping processing for each datum can be completed in a very short time thanks to the fast speed of the DES encrypting algorithm; besides, the DES key encrypted by adopting the RSA algorithm can be publicized; therefore, the overall security system only requires few RSA decryption key. The mixed encryption scheme provided by the invention can not only give full play to the advantage of fast encrypting speed of the DES encrypting algorithm, but also give full play to the advantage of convenient management of the RSA algorithm; therefore, the mixed encryption scheme provided by the invention has the advantages of simple theory, fast speed and being easy to be realized; when being used in an instant communication system, the mixed encryption scheme can meet the requirement for real time and security of a conference system.

Description

technical field [0001] The invention relates to an encryption algorithm in network communication, in particular to a hybrid encryption method in a meeting system. Background technique [0002] With the rapid development of computer and communication technology, a large amount of sensitive information is often exchanged through public communication facilities or computer networks. How to protect the security of information so that it will not be stolen, tampered with or destroyed has become a common concern today. Major issues, modern cryptography is the leading force to ensure information security The research and application of cryptography theory is the core research field of information security technology. In the past, researchers' research on cryptosystems was generally divided into two types: one is public key cryptosystems such as RSA and ECC. Although this encryption system is simple in form and strong in confidentiality, its encryption and decryption speed is relat...

AI Technical Summary

Problems solved by technology

[0003] The technology of the present invention solves the problem: overcomes the deficiencies of the prior art, and provides a hybrid encryption method in the conference system, which combines the advantages of DES and RSA algorithms, avoids their respective shortcomings, and solves the problem of encryption The difficulty of key distribution and the efficiency of encryption and decryption realize the encryption and decryption of all network communication data in the conference system, which has good flexibility, security and versatility

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