Data hybrid encryption method

Abstract

The invention provides a data hybrid encryption method. The method comprises the following steps of step S1.sending a plaintext P by a sender; step S2.encrypting the plaintext P by using a DES algorithm; step S3.encrypting a secret key K by using an RSA algorithm in a data transmission process; step S4.decrypting CK on the basis of the RSA algorithm; step S5.decrypting CP by using the DES algorithm and the secret key K; and step S6.obtaining the plaintext P by an acceptor. Compared with the prior art, through the data hybrid encryption method provided by the invention, the safety in the data transmission process is greatly improved; the hybrid encryption algorithm integrates the encryption speed of the DES and the RSA, when the hybrid encryption algorithm is used for processing large datatransmission, the encryption speed is far faster than the RSA encryption speed; and the hybrid encryption algorithm solves the problems of secret key generation and management of the DES and the RSA well.

Description

technical field [0001] The invention relates to the field of information security, in particular to a data mixing encryption method. Background technique [0002] With the rapid development of mobile Internet and computer technology, people's living standards are gradually improving, and smart phones play a very important role in daily life. Due to the advantages of lightness, speed, and comprehensive functions of mobile phones, people rely more and more on mobile phones, and gradually replace computers for various communication and data exchange services. Therefore, more and more attention has been paid to the security of data information in the process of data transmission from the mobile terminal to the server. In such a society with advanced information technology, once the security and stability of the mobile Internet are threatened, it will bring great harm to operators and users. Huge economic loss. In order to solve the above problems, modern cryptography and netwo...

AI Technical Summary

Problems solved by technology

The encryption speed of the DES algorithm is quite fast and can be applied to large data encryption. However, due to the short length of the key and the uncertainty of the S box, the information security is particularly low, and the plaintext is vulnerable, and the key management of DES consumes a lot of system Although the RSA algorithm has high security, there are problems such as prime number detection and large prime number generation in the RSA algorithm, and RSA key generation is difficult, it is difficult to achieve the effect of one-time encryption for all data, and the encryption speed is not fast , not suitable for large data encryption

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