Dell C5765DN MFP Color Laser Printer - Manual (Page 88)

Dell C5765dn Security Target
- 84 -
Secret-key cryptographic method generated as S/MIME for every mail
Cryptographic Method and Size
of Secret Key
3Key Triple-DES/168 bits
AES / 128 bits
AES / 192 bits
AES / 256 bits
Hash method generated as S/MIME for every mail
hash method
SHA1
SHA256
7.1.8. Fax Flow Security (TSF_FAX_FLOW)
This function inhibits unauthorized access to the TOE via the Fax card in the controller board, at any
case. The data on public telephone line are not delivered to the internal network.
(1) FDP_IFC.1 Subset information flow control
FDP_IFF.1 Simple security attributes
The data on public telephone line are not delivered to the internal network.
7.1.9. Self Test (TSF_S_TEST)
The TOE can execute a self test function to verify the integrity of TSF executable code and TSF
data.
(1) FPT_TST.1 TSF testing
TOE verifies the area of NVRAM and SEEPROM including TSF data upon initiation, and
displays an error on the control panel if an error occurs.
However, an error is not detected for the data on audit logs and time and date as these are not
included in the target. Also, when Self Test function is set to be executed upon initiation, TOE
calculates the checksum of Controller ROM to confirm if it matches the specified value, and
displays an error on the control panel if an error occurs.