Il 09/06/2012 15:03, Daniele Pinna ha scritto:
> Credo che la password non stia nel HDD ma nel portatile.
> E' una cosa utile se vuoi criptare i dati.
la password è una feature standard dei dischi fissi
ci sono software (per esempio hdparm) che permettono di impostarla su
qualunque disco
prova a cercare con google: password protected HDD...
per esempio:
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It is not a very well known fact, but all hard disks have a very
strong hardware password capability build in. This password is usually
stored both in a chip on the HD controller (the printed circuit board
on the hard disk) and on the hard disk itself in a special hidden sector.
Setting this password will make the hard disk completely unusable to
anyone that doesn’t know it. And not only on your computer, but on any
computer.
A lot of newer laptops will set the HD password together with the BIOS
password, completely locking all the hardware.
The hard disk manufacturers are unable to unlock a password protected
hard disk, as there aren’t any “secret” master passwords build into
the firmware. Even swapping the controller of the password-protected
hard disk with exactly the same controller from an unprotected HD will
not remove the protection on most disks, as the password (together
with most of the firmware) is also stored on the hard disk itself.
The only way of retrieving any files from a password protected hard
disk without knowing the password is to send it to a data recovery
company for unlocking, but not all data recovery companies could or
would unlock a password protected HD.
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ATA Password: An ATA password (also known as the ATA Security Feature
Set) is part of the ATA specification and allows two 32 byte passwords
to be set on the drive; a User Password and a Master Password. This
protection is normally only implemented on laptop hard disks but as
part of the ATA specification can be implemented on any hard disk the
behaviour is the same regardless of the type of ATA hard drive.
The protection is normally activated by setting the user password with
the Security Set Password ATA command (setting of the Master Password
allows to override the User Password only and will not lock the
device). Once this command has been issued and the power is cycled or
the device is otherwise reset the disk is locked. The disk in this
state allows no access to its data and accepts only a limited number
of commands, such as, for instance, Identify Device, Serial Number etc.
There are two different security levels detailed in the ATA
specification, High and Maximum. If the hard drive is protected using
the High security level either the Master or the User password can be
used to unlock the drive, however if the security level is set to
Maximum only the User Password will enable unlocking of the drive.
A drive that is locked using an ATA password will appear in the BIOS
normally displaying all the information that you would expect to see
such as the drive model and serial numbers but will refuse to boot,
dependant on the particular BIOS being used you may or may not be
informed that the drive is password protected or provided with a
prompt at which to enter a password.
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bye
!(!1|1)