TOE Summary Specification Rationale | Nortel Networks 7.05, 7.11

Security Target, Version 3.9						March 18, 2008


	SFR ID		Dependencies		Dependency Met

	FPT_TST.1		FPT_AMT.1		
	FPT_TST.1		FPT_AMT.1		
	FTP_TRP.1		[none]		
	FTP_TRP.1		[none]		

8.6 TOE Summary Specification Rationale

8.6.1TOE Summary Specification Rationale for the Security Functional Requirements

Each subsection in the TOE Summary Specification (Section 6) describes a security function of the TOE. Each description is organized by a set of requirements with rationale that indicates how these requirements are satisfied by aspects of the corresponding security function. The set of security functions work together to satisfy all of the security functions and assurance requirements. Furthermore, all of the security functions are necessary in order for the TSF to provide the required security functionality. This section, in conjunction with the TOE Summary Specification section, provides evidence that the security functions are suitable to fulfill the TOE security requirements. Please see Section 6 - TOE Summary Specification for more details.

Table 14 identifies the relationship between security requirements and security functions, showing that all security requirements are addressed and all security functions are necessary (i.e., they correspond to at least one security requirement).

The only security mechanism that is realized by a probabilistic or permutational implementation is the password mechanism. Refer to Section 8.7 for Strength of Function.

Table 14 - Mapping of Security Functional Requirements to TOE Security Functions

	TOE Security Function	SFR

	Security Audit	FAU_GEN.1
		FAU_SAR.1

	Cryptographic Support	FCS_CKM.1(a)
		FCS.CKM.4
		FCS_COP.1

	User Data Protection	FDP_ACC.2
		FDP_ACF.1
		FDP_IFC.2
		FDP_IFF.1
		FDP_UCT.1
		FDP_UIT.1

	Identification and	FIA_UAU.1
	Authentication	FIA_UAU.5
		FIA_UID.2

	Security Management	FMT_MOF.1
		FMT_MSA.1
		FMT_MSA.2
		FMT_MSA.3
		FMT_SMF.1
		FMT_SMR.1

	Protection of the TSF	FPT_AMT.1
		FPT_RPL.1
		FPT_TST.1

	Trusted Path/Channels	FTP_TRP.1


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Nortel Networks 7.05, 7.11 manual TOE Summary Specification Rationale

Contents

Nortel Networks Corsec Security, Inc Revision History Version Modification Date Modified By Description of Changes Table of Contents Protection Profile Claims Table of FiguresTable of Tables Rationale Security Target, TOE and CC Identification and Conformance Security Target IntroductionPurpose ST, TOE, and CC Identification and Conformance Terminology Conventions, Acronyms, and TerminologyConventions Terminology Primary Admin password Product Description TOE DescriptionProduct Type Branch Office Deployment Configuration of the TOE TOE Boundaries and Scope Physical Boundary Logical Boundary TOE Environment World Enterprise User Data Protection Security AuditCryptographic Support Protection of the TOE Security Functions Identification and AuthenticationSecurity Management Trusted Path/Channels Excluded TOE Functionality Threats to Security TOE Security EnvironmentAssumptions Threats Addressed by the TOE Threats Addressed by the TOE Environment Security Objectives Security Objectives for the TOE Non-IT Security Objectives Security Objectives for the EnvironmentIT Security Objectives OE.TIME TOE Security Functional Requirements IT Security RequirementsTOE Security Functional Requirements ST Operation Description ST Operation FAUSAR.1 Audit review Class FAU Security AuditFAUGEN.1 Audit Data Generation Auditable Events Dependencies FAUGEN.1 Audit data generation FCSCKM.1b Cryptographic key generation RSA Class FCS Cryptographic SupportFCSCKM.1a Cryptographic key generation Diffie-Hellman FCSCKM.4 Cryptographic key destruction FCSCOP.1e Cryptographic operation hashing FCSCOP.1b Cryptographic operation authenticationFCSCOP.1d Cryptographic operation random number generation Security Target, Version March 18 Class FDP User Data Protection FDPACC.2 Complete access controlFDPACF.1 Security attribute based access control FDPIFC.2a Complete information flow control VPN FDPIFC.2b Complete information flow control Firewall FDPIFF.1a Simple security attributes VPN FDPIFF.1b Simple security attributes Firewall FDPUCT.1.1 FDPUCT.1 Basic data exchange confidentialityFDPUIT.1 Data exchange integrity FDPUIT.1.1 FIAUAU.5 Multiple authentication mechanisms Class FIA Identification and AuthenticationFIAUAU.1 Timing of authentication FIAUID.2 User identification before any action Dependencies No dependencies FMTMOF.1b Management of security functions behaviour Class FMT Security ManagementFMTMOF.1a Management of security functions behaviour FMTMSA.1a Management of security attributes FMTMSA.3a Static attribute initialisation FMTMSA.1c Management of security attributesFMTMSA.2 Secure security attributes FMTMSA.2.1 FMTMSA.3c Static attribute initialisation FMTSMF.1 Specification of Management FunctionsFMTMSA.3b Static attribute initialisation FMTSMR.1 Security roles FMTSMR.1.2 Class FPT Protection of the TSF FPTAMT.1 Abstract machine testingFPTTST.1 TSF testing FPTRPL.1 Replay detection FTPTRP.1.1 Class FTP Trusted Path/ChannelsFTPTRP.1 Trusted path FTPTRP.1.2 FPTSEP.1 TSF domain separation Security Functional Requirements on the IT EnvironmentFPTRVM.1 Non-bypassability of the TSP FPTSTM.1 Reliable time stamps Security Target, Version 3.9March 18 Assurance Requirements Assurance RequirementsAssurance Components TOE Security TOE Summary SpecificationTOE Security Functions Description Function Accounting Logs Configuration LogSecurity Audit Security Log System Log Event Log FIPS-Validated Cryptographic Algorithms Cryptographic SupportFips Validated Modules Validation Modules Fips 140-2 Certificate # User Data Protection Identification and Authentication Security Management Conditional Self-Tests Power-Up Self-TestsProtection of the TOE Security Functions TOE Security Functional Requirements Satisfied FTPTRP.1 TOE Security Assurance MeasuresTrusted Path/Channels Assurance Assurance Measure Component Augmentation to EAL 4+ assurance level Protection Profile Claims Protection Profile Reference Relationship of Security Threats to Objectives RationaleSecurity Objectives Rationale TOE Objectives Environmental Objectives Non-IT Hack Certificate Security Functional Requirements Rationale OE.CERTIFICATE Relationship of Security Requirements to Objectives Objectives Requirements Functions and data Env Able to access such functionality FMTMSA.3a,b,c Reject packets based on their attributes Integrity Dependency Rationale Security Assurance Requirements RationaleRationale for Strength of Function Functional Requirements Dependencies FCSCOP.1 TOE Summary Specification Rationale Development Configuration ManagementSecure Delivery and Operation Tests Guidance DocumentationLife Cycle Support Documents Strength of Function Vulnerability and TOE Strength of Function Analyses Acronym Definition AcronymsAcronyms DoD SHA