windows - USB disk encryption at driver level -

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windows - USB disk encryption at driver level -

i trying implement simple encrypted file scheme usb storage devices (flash disks) on specific pc. matter of security , assure flash disks formatted other pcs cannot used in pc , vice versa. os of pcs either windows xp, 7 or linux.

now question: best approach this? best point implementing such system?

i have read ifs documents in msdn , seems minifilters may best way go. can implement minifilter attaches usb devices , encrypts write operations , decrypts read operations. think minifilters cannot alter file-system tables. means files , folders can read unathurized pcs , file contents encrypted. alternative custom file-system seems much more hard implements.

1) there way insert software processing layer between file-system info output , usb bus? in way can protect finish disk data, no matter file-system uses.

2) there way manipulate file-system tables in minifilter level , create unreadable normal systems?

3) best solution linux?

you need driver filter requests on disk level, rather on file level. in windows that's possible, don't know linux.

for custom filesystem on device can utilize virtual disk components - windows there exist several products different design approaches on market (including our solfs , callbackdisk products) , believe it's same linux. custom filesystem won't solve task because while lets have custom-formatted , encrypted usb device, 1 still able insert fat- or ntfs-formatted flash card or usb stick , utilize it.

windows linux storage driver

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