Data security device and the method thereof
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United States of America Patent
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N/A
Issued Date -
Apr 17, 2008
app pub date -
Oct 12, 2007
filing date -
Oct 13, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A data security device and the method thereof are provided for transmission security via a USB port. A USB protocol analyzer of the data security device is provided for determining the signal type, so as to encrypt a storage data signal but not a command signal. Therefore, the part of the USB device not for storage (such as a mouse) can work normally. The data security device determines the file system format of the storage data signal by a file system analyzer and encrypts a data block of the storage data signal by an encrypt unit, thereby a filename of the encrypted storage data signal can be obtained and the USB device can be used on other hosts.
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