Method and device for encrypting network user password

Abstract

A method for encrypting network user password and a relative device, belong to computer network application safety technique field, for effectively protecting personal password from virus attack. The inventive method comprises that (1), operator sends user memory card and user password with private key in a server database to user, (2), when user accesses, server provides a random encrypted code when requests user to input password, (3), user inserts the memory card into an encrypt device, to input user password and the random encrypt code, to process private password encrypt via the encrypt device, to obtain a new encrypt password to be input into computer, (4), the server receives the private key stored in the database to decrypt data, compares user password and the random encrypt code to pass the password check or not. The encrypt device comprises a single chip, a card reader, and a display screen. The invention can protect personal password via encrypt in computer network.

Description

technical field [0001] A method and device for encrypting network user passwords belong to the field of security protection for computer network applications. Background technique [0002] With the development of computer and Internet technology, people have widely used various financial services carried out on the Internet, such as online banking, online stock market and so on. However, some lawbreakers take advantage of some loopholes in the computer to create a "Trojan horse" virus, which lurks in the personal computer, and uses the network to wait for an opportunity to steal the user's account and password. Although the anti-virus software is constantly being upgraded, the "Trojan horse" virus programs are also constantly changing, and there is a trend of "one foot high, one foot high", which brings economic losses to many users. Therefore, the State Secrecy Office approved various encryption algorithms, supported one-time encryption, and required the establishment of a...

AI Technical Summary

Problems solved by technology

The dynamic ciphers currently on the market or inventions such as patent application numbers: 99105065.7, CN96246947.5 and other announcements are all based on one user and one dynamic cipher, with time as a random dynamic value. If multiple users use it, they must It is extremely inconvenient to carry multiple ciphers

The fixed random dynamic value and the long-term use of the same computer with viruses also bring opportunities for hackers to decipher the password

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