Spectra Logic BlueScale Encryption, Руководство пользователя, Страница: 127 / 133

11. Endura Decryption Utility
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8.
Copy the key file from the USB device that contains the encrypted key or keys to the
system. Note the full path and filename for each key. Also have on hand the key’s
password in human readable form
Running EDU to Decrypt Data
To run EDU to decrypt data:
1.
At the command line, enter the command, specifying the drive:
In this example, only one key is required. This example assumes that you have copied
the EDU binary to /root/decrypt/edufile1.3.3—enter the command at a system
prompt:
/root/decrypt/edufile1.3.3 -i /dev/nst1- -n1
then press
enter
.
2.
The system prompt displays along with a request for the password. Type it in, then
press
Enter
.
3.
The system then prompts for the full path and file name of the key. Type it in, then
press
Enter
.
4.
The system begins copying the data to /tmp. Messages display as the data is
decrypted. The system indicates when the copy is complete, and prompts you to insert
an empty tape.
Note:
Although you can choose to turn off write-protect on the original tape
and decrypt and restore data to the same tape, this is strongly
discouraged. Doing so overwrites the original data set. If the system
has had any problem copying data, then the original data is erased and
cannot be recovered.
5.
Insert the empty tape then press
Enter
. EDU decrypts data and writes it to the tape
now in the drive.
6.
Repeat this procedure for every tape to be decrypted.