Image Overwrite (Tsf_Iow); Hdd Data Encryption (Tsf_Nve) - Samsung X4220 Instruction Manual

Samsung Multifunction MultiXpress X4220, X4250, X4300, X401, K4250, K4300, K4350, K401 Series
Both successful and unsuccessful use of
the authentication mechanism
Both successful and unsuccessful use of
the identification mechanism
Termination of an interactive session by
the session termination mechanism
Use of the management functions
Modifications to the group of users that
are part of a role
Log data access
Manual Image Overwrite
Execution of the TSF self tests and the
results of the tests
Failure of the trusted channel functions
Change to the time

7.1.5 Image Overwrite (TSF_IOW)

Relevant SFR: FDP_RIP.1
The TOE provides Image Overwrite functions that delete the stored file from the hard disk drive. The
Image Overwrite function consists of Automatic Image Overwrite and Manual Image Overwrite. The
TOE implements an Automatic Image Overwrite to overwrite temporary files created during the
copying, printing, faxing and scanning (scan-to-email, scan-to-FTP, or scan-to-SMB task processes).
The image overwrite security function can also be invoked manually only by U.ADMINISTRATOR
(Manual Image Overwrite) through the LUI. Once invoked, the Manual Image Overwrite cancels all
print and scan jobs, halts the printer interface (network), overwrites the contents of the reserved
section on the hard disk according to the overwrite method set by U.ADMINISTRATOR, which are
DoD 5220.28-M, Australian ACSI 33, DoD5220.22-M (ECE), German standard (VSITR) standard,
and Custom. If there are any problems during overwriting, the Manual Image Overwrite job
automatically restarts to overwrite. Automatic Image Overwrite will remove temporary area used for
job operation after job completion. U.ADMINISTRATOR shall manage the Automatic Image
Overwrite feature whether it enable or disable.

7.1.6 HDD Data Encryption (TSF_NVE)

Relevant SFR: FCS_CKM.1, FCS_CKM.4, FCS_COP.1
The TOE provides an encryption function during the data storage procedure and decryption function
in the process of accessing stored data from the hard disk drive.
The TOE generates cryptographic keys when the TOE is initialized at the first setout. The secure key
(256 bits) is used for encrypting and decrypting user data and TSF data stored in the HDD.
The access to this key is not allowed to any U.USER including
The TSF destroys cryptographic keys in accordance with overwriting a used cryptographic key with a
newly generated cryptographic key.
- Encryption and Decryption:
Copyright
FIA_UAU. 1
FIA_UID. 1
FTA_SSL.3
FMT_SMF.1
FMT_SMR.1
FMT_MTD.1
FDP_RIP.1
FPT_TST.1
FTP_ITC.1
FPT_STM.1

2014 SAMSUNG ELECTRONICS Co., Ltd., All rights reserved
Basic
Basic
Minimum
Minimum
Minimum
Not specified
Not specified
Not specified
Minimum
Minimum
U.ADMINISTRATOR
92
None required
Attempted user
identity, if available
None required
None required
None required
None required
None required
None required
None required
None required
.