Patent ID: 8560864
Filing Date: 2013-10-15
Classification: G06F,H04L

Abstract:
1. A firewall device for a removable mass storage device, comprising: a first connector for connecting with a data device supporting data transfer with the removable mass storage device; a second connector for connecting with the removable mass storage device; and a microprocessor, adapted to filter data to be transferred from the data device to the removable mass storage device and from the removable mass storage device to the data device according to a predefined data transfer criterion, and adapted to perform a method that compresses, decompresses, encrypts or decrypts the data before the data is transferred according to the predefined data transfer criterion, the method comprising: determining whether the data is allowed to be transferred according to the predefined data transfer criterion by checking one or more data attributes or content of the data to be transferred; if the data is allowed to be transferred, determining whether multiple files or directories of the data are allowed to be transferred according to the predefined data transfer criterion; and performing encryption, decryption, compression or decompression of the data to be transferred according to the predefined data transfer criterion.