Tpm (Trusted Platform Module) - Canon imageRUNNER ADVANCE 8205 Service Manual

4.

TPM (Trusted Platform Module)

TPM is a standard security chip (tamper resistant hardware) installed in
the imageRUNNER ADVANCE 8200 Series machines. The TPM
provides a facility for the secure generation of cryptographic keys,
encrypts information stored on the internal HDD, and decrypts
information read from the internal HDD. The public keys to encrypt
confidential information are securely controlled by the TPM chip, and
they can only be decrypted if the TPM releases the associated
decryption key. If the HDD is removed from the machine, it will be
difficult to retrieve data off that HDD since the encryption key for that
data is stored in a separate location within the TPM.
CAUTION
Once the TPM setting is activated, if the end user fails to back up
the TPM key, or if the end user loses the TPM key, it may result in
permanent, unrecoverable data loss, for which Canon U.S.A., Inc.
is not liable. (See
IMPORTANT
• If the TPM setting is activated and the TPM chip fails, the confidential
information stored on the chip can only be recovered if Canon's
service representative replaces the TPM chip and restores the original
TPM key to the new chip. Immediately, back up the TPM key on a
USB memory stick, after the TPM setting is activated.
• Only the Administrator of the machine can back up the TPM key.
• For security reasons, the TPM key can only be backed up once. Store
the USB memory with the back up data in a safe place.
• For the back up of the TPM key, it is recommended that a USB
memory stick (supported system file: FAT32) with free space of 10
MB or more is used.
• The TPM seals the hardware components associated with the data,
and the data cannot be accessed unless the specific TPM key is
issued by the TPM chip. Therefore, setting the TPM mode to 'On',
may affect service procedures and service costs (if not handled
properly). It is strongly recommended that the Administrator who has
access to the TPM key be present for all service calls to prevent the
loss of data and productivity of the machine.
imageRUNNER ADVANCE 8200 Series Service Guide
imageRUNNER ADVANCE 8200 Series Service Guide
"DISCLAIMER," on p. ii for further details.)
November 2012
Page 33