Digital encryption algorithm

Abstract

A digital encryption algorithm uses a connection variable to connect a same kind field or a same kind data table and performs encryption on source data; the encryption method needs hardware data to participate and enables a password to be complex through multiple times of encryption and expanding encrypted data; and the biggest characteristic of the password is that the encrypted data is not completely stored, so that cracking on the server terminal is very difficult.

Description

technical field [0001] The invention belongs to digital encryption technology. Background technique [0002] The following first introduces the general situation of commonly used digital encryption algorithms: [0003] What we often call passwords are actually passwords. Passwords can be understood as a very difficult translation. It translates recognizable text into unrecognizable text. Passwords and digital certificates are special passwords. The telegram message used is the real password. It converts Chinese into a four-digit number. The long and short signals of each number are different. Use these long and short signals to send and receive. After receiving, find the corresponding Chinese through the number. , through manual translation into the original text, the digital number of the mass telegram is not a secret, so the encryption performance of the mass telegram message is very poor. In addition to the telegram message, there is also a password transmitter. The prin...

AI Technical Summary

Problems solved by technology

[0005] The asymmetric algorithm mainly uses the public key (publickey) and (privatekey) private key algorithm, that is, the public key is encrypted, the private key is decrypted, and the private key is encrypted, the public key is decrypted. The public key and the private key are in one-to-one correspondence and only use First, the asymmetric algorithm is theoretically more secure than the MD5 algorithm, but the decryption of the asymmetric algorithm is time-consuming. Compared with the similar MD5 algorithm, the asymmetric algorithm is even 1000 times slower than the MD5 algorithm, and the IC card or U- The key itself is a microcomputer system. For example, the PBOC card issued in China has its own CPU. Since the IC card or U-key is forced to open an external physical port, hackers can use this physical port to maliciously write virus programs and spread viruses through the ATM system. Or carry out sabotage activities. If online banking uses U-shield, it is safer than other methods. However, the automatic teller machine opens the physical port. If the hacker does not steal customer funds, but directly instructs the teller machine to spit out money, by modifying the system Database balance, then, it may be difficult for banks to find out for a long time, but magnetic stripe card hackers have no way to achieve this. From this perspective, IC cards may not be more secure than magnetic stripe cards

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