Digital Data Communications LEVEL ONE FCS-4300 Guía de usuario descargar pdf (Pagina 51)

Fuji Xerox ApeosPort-II C4300(AP)Series Security Kit for Asia Pacific Security Target V1.01

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8.3. TOE Summary Specification Rationale

8.3.1.

Rationale for Function Summary Specification

(1) Necessity

Correspondences between security functional requirements and TOE security functions are

described in Table 19.

TOE security functions correspond to security functional requirements.

All TOE security functions are necessary to realize the security functional requirements.

Table 19: Correspondences between Security Functional Requirements and TOE Security Functions

TOE security function

Security functional

requirement

SF.OVERWRITE

SF.ENCRYPTION

SF. MANAGE

SF. CEREST

FCS_CKM.1 O

FCS_COP.1 O

FDP_RIP.1 O

FIA_AFL.1 O

FIA_UID.2 O

FIA_UAU.2 O

FIA_UAU.7 O

FMT_MOF.1 (1) O

FMT_MOF.1 (2) O

FMT_MOF.1 (3) O

FMT_MTD.1(1) O

FMT_MTD.1(2) O

FMT_MTD.1(3) O

FMT_SMF.1 O

FMT_SMR.1 O

FPT_RVM.1 O O O

O: Shows that it is the security function that satisfies the security functional requirement.

(2) Sufficiency

Table 20 describes that TOE security functions sufficiently realize TOE security functional

requirements.

Table 20: Sufficiency of Security Functional Requirements

Functional

requirement

Security function

FCS_CKM.1 By the following security function, FCS_CKM.1, the cryptographic-key generation, can be

assured:

SF.ENCRYPTION

SF.ENCRYPTION , TOE generates 128-bit cryptographic key using the Fuji Xerox’s

unique FXOSENC method algorithm and “cryptographic seed key for data stored on

the hard disk drive” set by key operator, at the time of booting. Fuji Xerox’s unique

FXOSENC method algorithm is a secure algorithm that has sufficient complexity.

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