TITLE: SECRET FILE ACCESS AUTHORIZATION SYSTEM WITH FINGERPRINT LIMIATION

摘要

A secret file access authorization system with fingerprint limitation includes an authorization module, a encrypt module and a certification module in the server linked by the programs; and at least one client, each client is provided with a user module, this user module contains a kernel encrypt/decrypt unit embedded in the client operation system kernel, therefore it can realize that access authorization to the secure file is limited by environment fingerprint and time fingerprint. Therein an authorization module provides authorization secret key and fingerprint template; an encrypt module receives the input of authorization secret key and secret files to be encrypted and provides the secret key for decryption; a user module receives the authorization secret key and encrypted secret file and provides authorization secret key certification request to certification module; a certification module receives the decrypt secret key and authorization secret key certification request and fingerprint template, and provides certification decrypt secret key to the user to start up kernel encrypt/decrypt unit in the user modules and realizes the operation of reading and writing of the encrypted files.