CPK-BASED LINUX OPERATING SYSTEM LOGIN AUTHENTICATION METHOD, DEVICE, TERMINAL AND SERVER

摘要

The embodiments of the present invention provide a CPK-based Linux operating system login authentication method, a device, a terminal and a server, belonging to the field of computer and information security technology, and solving the problem in the prior art that a network attack obtains an access control right for a Linux operating system. Said method comprises acquiring a user identifier, to be authenticated, of a CPK key device, and sending the user identifier to the Linux server; acquiring a password of the CPK key device, and sending to the CPK key device the password and a time at which a terminal is to be signed; and receiving signature information sent by the CPK key device, and sending the signature information to the Linux server, so that the Linux server performs login authentication by means of the signature information, the signature information comprising a digital signature for said time and the user identifier corresponding to the CPK key device. The embodiments of the present invention are applicable to the authentication process for logging into a Linux operating system.