A Random Encryption Algorithm Based on DES,RSA Algorithm

With the rapid development of Internet,the security of information transformation in the network has become more and more important.Encryption technology is the cornerstone of network security technology.At present,the typical encryption algorithms have advantages and disadvantages,such as,DES algorithm is fast,but its security is low and the length of key is fixed.RSA algorithm is safer,and its length of key is not fixed,but it is slower.In this paper,the random encryption algorithm based on DES,RSA algorithm chooses DES or RSA algorithm to encrypt information according to the selection rules,and then organizes the flag of algorithm,the length of key,key and the ciphertext information into the new information to transmit.This can not only encrypt and decrypt the data rapidly,but also be a good solution to key distribution problem,and improve the efficiency of the algorithm under the promise of security.