Nortel Networks 7.11, 7.05 manual Cryptographic Support, Fips Validated Modules

Security Target, Version 3.9 March 18, 2008

6.1.2 Cryptographic Support

The TOE’s cryptographic functionality is provided by a FIPS 140-2-validated cryptographic module. All modules have received either a Level 1 or Level 2 FIPS 140-2 validation. Table 8 below indicates the modules and the validation levels achieved.

Table 8 - FIPS Validated Modules

Validation	Modules		FIPS 140-2 Certificate #
	VPN Router 1750, 2700, 2750 and 5000 with Hardware	1068
	Accelerator
Hardware modules
FIPS 140-2 validated	VPN Router 1750, 2700, 2750 and 5000 with VPN Router Security	1073
at level 2	Accelerator
	Nortel VPN Router 600, 1750, 2700, 2750 and 5000	1066
Hardware modules
FIPS 140-2 validated	Nortel VPN Router 1010, 1050 and 1100	1067
at level 1
Software module
being validated at	VPN Client Software	1032
level 1 of FIPS 140-2:

The TOE’s cryptographic module implements and utilizes the following FIPS-validated cryptographic algorithms:

Table 9 - FIPS-Validated Cryptographic Algorithms

Algorithm		Key Size(s) (bits)		Validated Against		FIPS Certificate #
3DES	168			FIPS 46-3	641, 642, 644
AES	128,		256	FIPS 197	718, 719, 721
RSA5	1024,		2048	FIPS 186-2	338, 339
SHA-1		N/A		FIPS 180-2	738, 739, 740
HMAC-SHA-1	160			FIPS 1986	387, 388, 389

The TOE generates RSA keys for signature generation and verification. During the key generation process, all weak keys are discarded. The resultant strong RSA keys are used to perform key agreement and authentication in accordance with the Diffie-Hellman and IKE protocols.

The TOE performs encryption and decryption using the 3DES and AES algorithms. The TOE implements the HMAC-SHA-1 algorithm in order to perform data origin authentication and data integrity checks upon encrypted packets entering the TOE. The TOE implements SHA-1 algorithm in order to perform data integrity checks upon encrypted packets entering the TOE.

The TOE destroys keys when they are no longer needed by “zeroizing” them. Zeroization is performed by overwriting the memory location containing the keys with zeros before marking the memory location as being free

5	Via the RSA BSAFE library.
6	FIPS 198 is equivalent to RFC 2104.
Nortel VPN Router v7.05 and Client Workstation v7.11		Page 45 of 67
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