HDD lock

[Miko Imre]

Hello,

A HDD maga csinalja a vedelmet.A password beallitasa ATA parancsokkal
tortenik,
ami benne van a szabvanyban.

Az info az itt van. Nem olvastam vegig, hogy lehet-e vele valamit kezdeni,
de mindenkeppen valami kis sajat progit kellene osszehozni.

Innen letoltod a ATA leirast:
http://www.indata.si/grega/megapeg.htm

pl ezt: ATA-6(d1410r0a).pdf (2911k) ,

de mar a 3-asban is benne van.

Altalanos leiras:

6.13 Security Mode feature set

The optional Security Mode feature set is a password system that restricts
access to user data stored on a
device. The system has two passwords, User and Master and two security
levels, High and Maximum. The
security system is enabled by sending a user password to the device with the
SECURITY SET PASSWORD
command. When the security system is enabled, access to user data on the
device is denied after a power
cycle until the User password is sent to the device with the SECURITY UNLOCK
command.
A Master password may be set in a addition to the User password. The purpose
of the Master password is to
allow an administrator to establish a password that is kept secret from the
user, and which may be used to
unlock the device if the User password is lost. Setting the Master password
does not enable the password
system.

The security level is set to High or Maximum with the SECURITY SET PASSWORD
command. The security
level determines device behavior when the Master password is used to unlock
the device. When the security
level is set to High the device requires the SECURITY UNLOCK command and the
Master password to
unlock. When the security level is set to Maximum the device requires a
SECURITY ERASE PREPARE
command and a SECURITY ERASE UNIT command with the master password to
unlock. Execution of the
SECURITY ERASE UNIT command erases all user data on the device.

The SECURITY FREEZE LOCK command prevents changes to passwords until a
following power cycle. The
purpose of the SECURITY FREEZE LOCK command is to prevent password setting
attacks on the security
system.

A device that implements the Security Mode feature set shall implement the
following minimum set of
commands:
- SECURITY SET PASSWORD
- SECURITY UNLOCK
- SECURITY ERASE PREPARE
- SECURITY ERASE UNIT
- SECURITY FREEZE LOCK
- SECURITY DISABLE PASSWORD

Support of the Security Mode feature set is indicated in IDENTIFY DEVICE
word 128.

A leiras persze folytatodik.

Udv
Imre

> Németh István írta:
>
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>