Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy Level 2 Validation Version 1.3 May 7, 2004 Introduction This is the non-proprietary Cryptographic Module Security Policy for the 1721 and 1760 Modular Access Routers with MOD1700-VPN. This security policy describes how the 1721 and 1760 routers (Hardware Version: 1721, 1760; MOD1700-VPN: Hardware Version 2.1, Board Version A0; Firmware Version: IOS 12.3(3d)) meet the security requirements of FIPS 140-2, and how to operate the 1721 and 1760 routers in a secure FIPS 140-2 mode. This policy was prepared as part of the Level 2 FIPS 140-2 validation of the 1721 and 1760 routers. FIPS 140-2 (Federal Information Processing Standards Publication 140-2--Security Requirements for Cryptographic Modules) details the U.S. Government requirements for cryptographic modules. More information about the FIPS 140-2 standard and validation program is available on the NIST website at http://csrc.nist.gov/cryptval/. This document contains the following sections: · Introduction, page 1 · The Cisco 1721/1760 Cryptographic Module, page 2 · Secure Operation of the Cisco 1721/1760 Router, page 20 · Related Documentation, page 22 · Obtaining Documentation, page 22 · Documentation Feedback, page 23 · Obtaining Technical Assistance, page 23 · Obtaining Additional Publications and Information, page 24 Corporate Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA Copyright © 2004 Cisco Systems, Inc. All rights reserved. The Cisco 1721/1760 Cryptographic Module References This document deals only with operations and capabilities of the 1721 and 1760 routers in the technical terms of a FIPS 140-2 cryptographic module security policy. More information is available on the 1721 and 1760 routers and the entire 1700 Series from the following sources: · The Cisco Systems website contains information on the full line of products at www.cisco.com. The 1700 Series product descriptions can be found at: http://www.cisco.com/en/US/products/hw/routers/ps221/index.html · For answers to technical or sales related questions please refer to the contacts listed on the Cisco Systems website at www.cisco.com. · The NIST Validated Modules website (http://csrc.nist.gov/cryptval) contains contact information for answers to technical or sales-related questions for the module Terminology In this document, the Cisco 1721 and 1760 routers are referred to as the routers, the modules, or the systems. Document Organization The Security Policy document is part of the FIPS 140-2 Submission Package. In addition to this document, the Submission Package contains: · Vendor Evidence document · Finite State Machine · Module Software Listing · Other supporting documentation as additional references This document provides an overview of the 1721 and 1760 routers and explains the secure configuration and operation of the modules. This introduction section is followed by the section "The Cisco 1721/1760 Cryptographic Module", which details the general features and functionality of the 1721 and 1760 routers. The section "Secure Operation of the Cisco 1721/1760 Router" specifically addresses the required configuration for the FIPS-mode of operation. With the exception of this Non-Proprietary Security Policy, the FIPS 140-2 Validation Submission Documentation is Cisco-proprietary and is releasable only under appropriate non-disclosure agreements. For access to these documents, please contact Cisco Systems. The Cisco 1721/1760 Cryptographic Module Branch office networking requirements are dramatically evolving, driven by web and e-commerce applications to enhance productivity and merging the voice and data infrastructure to reduce costs. The Cisco 1721 and 1760 routers offer versatility, integration, and security to branch offices. With numerous WAN Interface Cards (WICs) and Voice Interface Cards (VICs) available, the modular architecture of the Cisco router easily allows interfaces to be upgraded to accommodate network expansion. The Cisco Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 2 78-16315-01 The Cisco 1721/1760 Cryptographic Module 1721 and 1760 provide a scalable, secure, manageable remote access server that meets FIPS 140-2 Level 2 requirements. This section describes the general features and functionality provided by the Cisco 1721 and 1760 routers. Figure 1 The Cisco 1721 and Cisco 1760 Routers PWR WIC0 ACT/C WIC1 H0 ACT/C H0 ETH ACT Cisco OK ACT/C 1700 H1 ACT/C SER H1 IES COL RO U TER CONSOLE 99390 PWR OK PVDM 0 PVDM 1 OK MOD OK SLOT 0 OK 0 1 OK SLOT 1 0 OK 1 ACT COL Cisco 170 FDX 100 LINK 10/100 ETHE 0 Series RNET AUX SLOT 2 0 1 OK SLOT 3 0 OK 1 The 1721 and 1760 routers are multi-chip standalone cryptographic modules. The cryptographic boundary of the module consists of the physical perimeter of the module minus the three-dimensional space allocated for WICs and VICs. The cryptographic boundary includes the connection apparatus between the WIC (or VIC) and the motherboard/daughterboard that hosts the WIC (or VIC), but the boundary does not include the WIC (or VIC) itself. In other words, the cryptographic boundary encompasses all hardware components within the case of the device except any installed modular WICs (or VICs). All of the functionality discussed in this document is provided by components within this cryptographic boundary. The Cisco 1721 and 1760 routers incorporate the MOD1700-VPN cryptographic accelerator card. The MOD1700-VPN is located inside the module chassis, and is installed directly on the motherboard. The 1760 requires that a special opacity shield be installed over the right-hand side air vents in order to operate in FIPS-approved mode. The shield decreases the effective size of the vent holes, reducing visibility within the cryptographic boundary to FIPS-approved specifications. The shield is self-adhering to the side of the chassis. To install the shield, remove it from its paper backing and apply the shield to the chassis, aligning the holes on the shield with the vent-holes on the side of the chassis. Figure 3 demonstrates the proper application of the shield. Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 78-16315-01 3 The Cisco 1721/1760 Cryptographic Module Figure 2 Cisco 1760 Opacity Shield Application 99395 Cisco IOS features such as tunneling, data encryption, and termination of Remote Access WANs via IPSec, Layer 2 Forwarding (L2F) and Layer 2 Tunneling Protocols (L2TP) make the Cisco 1700 an ideal platform for building virtual private networks or outsourced dial solutions. Cisco 1700`s RISC-based processor provides the power needed for the dynamic requirements of the remote branch office. Module Interfaces The interfaces for the router are located on the rear panel of the 1721 and the front panel of the 1760 as shown in Figure 3. Figure 3 Cisco 1721 and Cisco 1760 Physical Interfaces Kensington-compatible locking socket WIC 0 slot Console port WIC 1 slot Power switch CONSOLE RD CD TD AL LP DSU 56K SEE MANUAL BEFORE INSTALLATION Model 65524 WIC 0 OK FDX 100 LINK 10/100 ETHERNET AUX MOD OK WIC 1 OK +5, +12, -12 VDC Cisco 1721 WIC 0 10/100-Mbps MOD OK OK LED Ethernet port LED Power socket FDX/100/ Auxiliary port WIC 1 OK LINK LEDs LED WIC/VIC Slot 0 WIC/VIC Slot 1 Console port VIC Slot 2 VIC Slot 3 CONSOLE THESE SLOTS ACCEPT ONLY VOICE INTERFACE CARDS Cisco 1700 Series PWR OK PVDM 0 PVDM 1 MOD SLOT 0 0 1 SLOT 1 0 1 ACT COL FDX 100 LINK 10/100 ETHERNET AUX SLOT 2 0 1 SLOT 3 0 1 OK OK OK OK OK OK OK Power LED Router MOD Slot 0 Slot 1 Ethernet Ethernet Auxiliary Slot 2 Slot 3 99391 OK OK LED LEDs LEDs LEDs port port LEDs LEDs PVDM 0/1 OK LEDs Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 4 78-16315-01 The Cisco 1721/1760 Cryptographic Module The Cisco 1721 and 1760 routers feature console and auxiliary ports, single fixed LAN interfaces, two Cisco WAN interface card (WIC) slots on the 1721, and two WIC slots and two Voice interface card (VIC) slots on the 1760. WAN interface cards support a variety of serial, ISDN BRI, and integrated CSU/DSU options for primary and backup WAN connectivity. All Cisco 1700 series routers include an auxiliary port supporting 115Kbps Dial-On-Demand Routing, ideal for back-up WAN connectivity. A WIC is inserted into one of the WIC slots, which are located on the back panel of the 1721 and the front panel of the 1760. WICs interface directly with the processor, and cannot perform cryptographic functions; they only serve as a data input and data output physical interface. The physical interfaces include a power plug for the power supply and a power switch. The router has one Fast Ethernet (10/100 RJ-45) connector for data transfers in and out. The module also has two other RJ-45 connectors on the back panel for a console terminal for local system access and an auxiliary port for remote system access or dial backup using a modem. The 10/100Base-T LAN port has Link/Activity, 10/100Mbps, and half/full duplex LEDs. Figure 4 shows the LEDs located on the rear panel of the 1721 with descriptions detailed in Table 1: Figure 4 Cisco 1721 Rear Panel LEDs CONSOLE RD CD TD AL LP DSU 56K SEE MANUAL BEFORE INSTALLATION Model 99392 WIC 0 OK FDX 100 LINK 10/100 ETHERNET AUX MOD OK WIC 1 OK +5, +12, -12 VDC Cisco 1721 WIC 0 FDX/100/ MOD OK WIC 1 OK OK LED LINK LEDs LED LED Table 1 Cisco 1721 Rear Panel LEDs and Descriptions LED Indication Description WIC 0 OK Green A WIC is correctly inserted in the card slot Off No WIC present / WIC incorrectly inserted in the card slot WIC 1 OK Green A WIC is correctly inserted in the card slot Off No WIC present / WIC incorrectly inserted in the card slot FDX Green The interface is transmitting data in full-duplex mode Off When off, the interface is transmitting data in half-duplex mode 100 Mbps Green The speed of the interface is 100 Mbps Off The speed of the interface is 10 Mbps or no link is established LINK Green An Ethernet link has been established Off No Ethernet link established MOD OK Green VPN hardware encryption module is installed and recognized by Cisco IOS Off VPN hardware encryption module not installed / not recognized by Cisco IOS Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 78-16315-01 5 The Cisco 1721/1760 Cryptographic Module Figure 5 shows the front panel LEDs of the 1721 and 1760, which provide overall status of the router's operation. The front panel of the 1721 displays whether or not the router is booted, overall activity/link status, and collision information. The front panel of the 1760 displays whether or not the router is booted, overall activity/link status, collision information, and specific information for each installed interface. Figure 5 Cisco 1721 and 1760 Front Panel LEDs WIC0 WIC1 ETH PWR ACT/CH0 ACT/CH0 ACT OK ACT/CH1 ACT/CH1 COL CONSOLE THESE SLOTS ACCEPT ONLY VOICE INTERFACE CARDS Cisco 1700 Series PWR OK PVDM 0 PVDM 1 MOD SLOT 0 0 1 SLOT 1 0 1 ACT COL FDX 100 LINK 10/100 ETHERNET AUX SLOT 2 0 1 SLOT 3 0 1 OK OK OK OK OK OK OK Power LED Router MOD Slot 0 Slot 1 Ethernet Ethernet Auxiliary Slot 2 Slot 3 99393 OK OK LED LEDs LEDs LEDs port port LEDs LEDs PVDM 0/1 OK LEDs Table 2 and Table 3 provide more detailed information conveyed by the LEDs on the front panel of the Cisco 1721 and 1760 routers: Table 2 Cisco 1721 Front Panel LEDs and Descriptions LED Indication Description PWR Green Power is supplied to the router Off The router is not powered on OK Green The router has successfully booted up and the software is functional. This LED blinks during the power-on self-test (POST) Off The router has not successfully booted up WIC 0 Green Serial and DSU/CSU cards--Blinks when data is being sent to or received ACT/CH0 from the port on the card in the WIC0 slot ISDN cards--On solid when the first ISDN B channel is up for the card in the WIC0 slot 2-port serial cards--Blinks when data is being sent to or received from the first port on the 2-port card in the WIC0 slot WIC 0 Green Serial and CSU/DSU cards--Remains off ACT/CH1 ISDN cards--On solid when the second ISDN B channel is up for the card in the WIC0 slot 2-port serial cards--Blinks when data is being sent to or received from the second port on the 2-port card in the WIC0 slot Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 6 78-16315-01 The Cisco 1721/1760 Cryptographic Module Table 2 Cisco 1721 Front Panel LEDs and Descriptions (Continued) LED Indication Description WIC 1 Green Serial and DSU/CSU cards--Blinks when data is being sent to or received ACT/CH0 from the port on the card in the WIC1 slot ISDN cards--On solid when the first ISDN B channel is up for the card in the WIC1 slot 2-port serial cards--Blinks when data is being sent to or received from the first port on the 2-port card in the WIC1 slot WIC 1 Green Serial and CSU/DSU cards--Remains off ACT/CH1 ISDN cards--On solid when the second ISDN B channel is up for the card in the WIC1 slot 2-port serial cards--Blinks when data is being sent to or received from the second port on the 2-port card in the WIC1 slot ETH ACT Green Blinks when there is network activity on the Ethernet port ETH COL Yellow Blinks when there are packet collisions on the local Ethernet network Table 3 Cisco 1760 Front Panel LEDs and Descriptions LED Indication Description PWR Green Power is supplied to the router Off The router is not powered on OK Green The router has successfully booted up and the software is functional. This LED blinks during the power-on self-test (POST) Off The router has not successfully booted up PVDM 0 Green On when a packet voice data module (PVDM) is correctly inserted in OK PVDM card slot 0 PVDM 1 Green n when a packet voice data module (PVDM) is correctly inserted in PVDM OK card slot 1 MOD OK Green On when a VPN module is present FDX Green The interface is transmitting data in full-duplex mode Off When off, the interface is transmitting data in half-duplex mode 100 Mbps Green The speed of the interface is 100 Mbps Off The speed of the interface is 10 Mbps or no link is established LINK Green An Ethernet link has been established Off No Ethernet link established SLOT 0 OK Green On when either a WIC or a VIC is correctly inserted in the card slot 0 Green ISDN--On when the first ISDN B channel is connected Serial, CSU/DSU, and VIC--Blinks when data is being sent to or received from port 0 in slot 0. For the VIC-2BRI-ST-NT/TE, blinks when data is being sent to or received from any of the B channels Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 78-16315-01 7 The Cisco 1721/1760 Cryptographic Module Table 3 Cisco 1760 Front Panel LEDs and Descriptions (Continued) LED Indication Description 1 Green ISDN--On when the second ISDN B channel is connected Serial and VIC--Blinks when data is being sent to or received from port 1 in slot 0 SLOT 1 OK Green On when either a WIC or a VIC is correctly inserted in the card slot 0 Green ISDN--On when the first ISDN B channel is connected Serial, CSU/DSU, and VIC--Blinks when data is being sent to or received from port 0 in slot 1 1 Green ISDN--On when the second ISDN B channel is connected Serial and VIC--Blinks when data is being sent to or received from port 1 in slot 1 SLOT 2 OK Green On when a VIC is correctly inserted in the card slot 0 Green VIC--Blinks when data is being sent to or received from port 0 in slot 2 1 Green VIC--Blinks when data is being sent to or received from port 1 in slot 2 SLOT 3 OK Green On when a VIC is correctly inserted in the card slot 0 Green VIC--Blinks when data is being sent to or received from port 0 in slot 3 1 Green VIC--Blinks when data is being sent to or received from port 1 in slot 3 All of these physical interfaces are separated into the logical interfaces from FIPS 140-2 as described in the Table 4: Table 4 FIPS 140-2 Logical Interfaces Router Physical Interface FIPS 140-2 Logical Interface 10/100BASE-TX LAN Port Data Input Interface WIC/VIC Interface Console Port Auxiliary Port 10/100BASE-TX LAN Port Data Output Interface WIC/VIC Interface Console Port Auxiliary Port 10/100BASE-TX LAN Port Control Input Interface WIC/VIC Interface Power Switch Console Port Auxiliary Port Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 8 78-16315-01 The Cisco 1721/1760 Cryptographic Module Table 4 FIPS 140-2 Logical Interfaces (Continued) Router Physical Interface FIPS 140-2 Logical Interface 10/100BASE-TX LAN Port Status Output Interface WIC/VIC Interface LAN Port LEDs 10/100BASE-TX LAN Port LEDs Power LED Activity LED Console Port Auxiliary Port Power Plug Power Interface Roles and Services Authentication is role-based. There are two main roles in the router that operators may assume: the Crypto Officer role and the User role. The administrator of the router assumes the Crypto Officer role in order to configure and maintain the router using Crypto Officer services, while the Users exercise only the basic User services. Both roles are authenticated by providing a valid username and password. The configuration of the encryption and decryption functionality is performed only by the Crypto Officer after authentication to the Crypto Officer role by providing a valid Crypto Officer username and password. Once the Crypto Officer configured the encryption and decryption functionality, the User can use this functionality after authentication to the User role by providing a valid User username and password. The Crypto Officer can also use the encryption and decryption functionality after authentication to the Crypto Officer role. The module supports RADIUS and TACACS+ for authentication and they are used in the FIPS mode. A complete description of all the management and configuration capabilities of the Cisco 1721 and 1760 Routers can be found in the Performing Basic System Management manual and in the online help for the router. The User and Crypto Officer passwords and the RADIUS/TACACS+ shared secrets must each be at least 8 alphanumeric characters in length. See the "Secure Operation of the Cisco 1721/1760 Router" section on page 20 for more information. If only integers 0-9 are used without repetition for an 8 digit PIN, the probability of randomly guessing the correct sequence is 1 in 1,814,400. Including the rest of the alphanumeric characters drastically decreases the odds of guessing the correct sequence. Crypto Officer Services During initial configuration of the router, the Crypto Officer password (the "enable" password) is defined. A Crypto Officer may assign permission to access the Crypto Officer role to additional accounts, thereby creating additional Crypto Officers. The Crypto Officer role is responsible for the configuration and maintenance of the router. The Crypto Officer services consist of the following: · Configure the router--define network interfaces and settings, create command aliases, set the protocols the router will support, enable interfaces and network services, set system date and time, and load authentication information. · Define Rules and Filters--create packet Filters that are applied to User data streams on each interface. Each Filter consists of a set of Rules, which define a set of packets to permit or deny based characteristics such as protocol ID, addresses, ports, TCP connection establishment, or packet direction. Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 78-16315-01 9 The Cisco 1721/1760 Cryptographic Module · Status Functions--view the router configuration, routing tables, active sessions, use Gets to view SNMP MIB II statistics, health, temperature, memory status, voltage, packet statistics, review accounting logs, and view physical interface status. · Manage the router--log off users, shutdown or reload the outer, manually back up router configurations, view complete configurations, manager user rights, and restore router configurations. · Set Encryption/Bypass--set up the configuration tables for IP tunneling. Set keys and algorithms to be used for each IP range or allow plaintext packets to be set from specified IP address. · Change WAN Interface Cards--insert and remove WICs in the WAN interface slot as described in the "Initial Setup" section on page 20 of this document. User Services A User enters the system by accessing the console port with a terminal program. The IOS prompts the User for their password. If the password is correct, the User is allowed entry to the IOS executive program. The services available to the User role consist of the following: · Status Functions--view state of interfaces, state of layer 2 protocols, version of IOS currently running · Network Functions--connect to other network devices through outgoing telnet, PPP, etc. and initiate diagnostic network services (i.e., ping, mtrace) · Terminal Functions--adjust the terminal session (e.g., lock the terminal, adjust flow control) · Directory Services--display directory of files kept in flash memory Physical Security The router is entirely encased by a thick steel chassis. Two WIC slots are provided on the rear of the 1721, and four WIC/VIC slots are provided on the front of the 1760. On-board LAN connectors and Console/Auxiliary connectors are provided on the rear of the 1721 and the front of the 1760, and the power cable connection and a power switch are provided on the rear of both models. The top portion of the chassis may be removed to allow access to the motherboard, memory, and expansion slots. Any WIC or VIC slot, which is not populated with a WIC or a VIC, must be populated with an appropriate slot cover in order to operate in a FIPS compliant mode. The slot covers are included with each router, and additional covers may be ordered from Cisco. The same procedure mentioned below to apply tamper evidence labels for WICs and VICs must also be followed to apply tamper evidence labels for the slot covers. Once the router has been configured in to meet FIPS 140-2 Level 2 requirements, the router cannot be accessed without signs of tampering. To seal the system, apply serialized tamper-evidence labels as follows: Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 10 78-16315-01 The Cisco 1721/1760 Cryptographic Module Applying Serialized Tamper-Evidence Labels to the Cisco 1721 To apply serialized tamper-evidence labels to the Cisco 1721: Step 1 Clean the cover of any grease, dirt, or oil before applying the tamper evidence labels. Alcohol-based cleaning pads are recommended for this purpose. The temperature of the router should be above 10 C. Step 2 Place the first label on the router as shown in Figure 6. The tamper evidence label should be placed so that the one half of the tamper evidence label covers the top-half of the right side of the enclosure and the other half covers the bottom-half of the right side of the router. Any attempt to remove the enclosure will leave tamper evidence. Step 3 Place the second label on the router as shown in Figure 6. The tamper evidence label should be placed so that the one half of the tamper evidence label covers the top-half of the left side of the enclosure and the other half covers the bottom-half of the left side of the router. Any attempt to remove the enclosure will leave tamper evidence. Step 4 Place the third label on the router as shown in Figure 6. The tamper evidence label should be placed so that the half of the label covers the enclosure and the other half covers the left WAN interface card slot. Any attempt to remove a WAN interface card will leave tamper evidence. Step 5 Place the fourth label on the router as shown in Figure 6. The tamper evidence label should be placed so that one half of the label covers the enclosure and the other half covers the right WAN interface card slot. Any attempt to remove a WAN interface card will leave tamper evidence. Step 6 The labels completely cure within five minutes. Figure 6 Cisco 1721 Tamper Evidence Label Placement RD CD TD AL LP PWR DSU WIC0 ACT/CH WIC1 56K 0 ACT/CH 0 ETH ACT Cisco SEE MANUAL BEFORE INSTALLATION OK ACT/CH 1700 1 ACT/CH SER 1 IES COL ROU TER Model 10/100 ETHERNET AUX WIC 0 OK FDX 100 LINK MOD OK WIC 1 OK +5, +12, -12 VDC Cisco 1721 Applying Serialized Tamper-Evidence Labels to the Cisco 1760 To apply serialized tamper-evidence labels to the Cisco 1760: Step 1 Clean the cover of any grease, dirt, or oil before applying the tamper evidence labels. Alcohol-based cleaning pads are recommended for this purpose. The temperature of the router should be above 10 C. Step 2 Place the first label on the router as shown in Figure 7. The tamper evidence label should be placed so that the one half of the tamper evidence label covers the right side of the enclosure and the other half covers the right side of the front of the router. Any attempt to remove the enclosure will leave tamper evidence. Step 3 Place the second label on the router as shown in Figure 7. The tamper evidence label should be placed so that the one half of the tamper evidence label covers the left side of the enclosure and the other half covers the left side of the front of the router. Any attempt to remove the enclosure will leave tamper evidence. Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 78-16315-01 11 The Cisco 1721/1760 Cryptographic Module Step 4 Place the third label on the router as shown in Figure 7. The tamper evidence label should be placed so that the half of the label covers the bottom of the enclosure and the other half covers the first WAN interface card slot. Any attempt to remove a WAN interface card will leave tamper evidence. Step 5 Place the fourth label on the router as shown in Figure 7. The tamper evidence label should be placed so that the half of the label covers the bottom of the enclosure and the other half covers the second WAN interface card slot. Any attempt to remove a WAN interface card will leave tamper evidence. Step 6 Place the fifth label on the router as shown in Figure 7. The tamper evidence label should be placed so that the half of the label covers the bottom of the enclosure and the other half covers the third WAN interface card slot. Any attempt to remove a WAN interface card will leave tamper evidence. Step 7 Place the sixth label on the router as shown in Figure 7. The tamper evidence label should be placed so that the half of the label covers the bottom of the enclosure and the other half covers the fourth WAN interface card slot. Any attempt to remove a WAN interface card will leave tamper evidence. Step 8 The labels completely cure within five minutes. Figure 7 Cisco 1760 Tamper Evidence Label Placement 103553 CONSOLE PWR OK PVDM 0 PVDM 1 OK MOD OK SLOT 0 OK 0 1 OK SLOT 1 0 OK 1 ACT COL Cisco 170 0 Series 2 FDX 100 LINK 10/100 ETHE RNET AUX 3 SLOT 2 OK 0 1 SLOT 3 0 4 OK 1 5 6 1 The tamper evidence seals are produced from a special thin gauge vinyl with self-adhesive backing. Any attempt to open the router, remove WIC cards, or remove the front faceplate will damage the tamper evidence seals or the painted surface and metal of the module cover. Since the tamper evidence seals have non-repeated serial numbers, they may be inspected for damage and compared against the applied serial numbers to verify that the module has not been tampered. Tamper evidence seals can also be inspected for signs of tampering, which include the following: curled corners, bubbling, crinkling, rips, tears, and slices. The word "OPEN" may appear if the label was peeled back. Cryptographic Key Management The router securely administers both cryptographic keys and other critical security parameters such as passwords. The tamper evidence seals provide physical protection for all keys. All keys are also protected by the password-protection on the Crypto Officer role login, and can be zeroized by the Crypto Officer. Keys are exchanged manually and entered electronically via manual key exchange or Internet Key Exchange (IKE). The modules contain a cryptographic accelerator card (the MOD1700-VPN), which provides DES (56-bit) (only for legacy systems), and 3DES (168-bit) IPSec encryption, MD5 and SHA-1 hashing, and has hardware support for DH and RSA key generation. Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 12 78-16315-01 The Cisco 1721/1760 Cryptographic Module The module supports the following critical security parameters (CSPs): Table 5 Critical Security Parameters # CSP Description Storage Name 1 CSP 1 This is the seed key for X9.31 PRNG. This key is stored in DRAM DRAM and updated periodically after the generation of 400 bites; hence, (plaintext) it is zeroized periodically. Also, the operator can turn off the router to zeroize this key. 2 CSP 2 The private exponent used in Diffie-Hellman (DH) exchange. DRAM Zeroized after DH shared secret has been generated. (plaintext) 3 CSP 3 The shared secret within IKE exchange. Zeroized when IKE DRAM session is terminated. (plaintext) 4 CSP 4 Same as above DRAM (plaintext) 5 CSP 5 Same as above DRAM (plaintext) 6 CSP 6 Same as above DRAM (plaintext) 7 CSP 7 The IKE session encrypt key. The zeroization is the same as DRAM above. (plaintext) 8 CSP 8 The IKE session authentication key. The zeroization is the same DRAM as above. (plaintext) 9 CSP 9 The RSA private key. "crypto key zeroize" command zeroizes this NVRAM key. (plaintext) 10 CSP 10 The key used to generate IKE skeyid during preshared-key NVRAM authentication. "no crypto isakmp key" command zeroizes it. This (plaintext) key can have two forms based on whether the key is related to the hostname or the IP address. 11 CSP 11 This key generates keys 3, 4, 5 and 6. This key is zeroized after DRAM generating those keys. (plaintext) 12 CSP 12 The RSA public key used to validate signatures within IKE. These DRAM keys are expired either when CRL (certificate revocation list) (plaintext) expires or 5 secs after if no CRL exists. After above expiration happens and before a new public key structure is created this key is deleted. This key does not need to be zeroized because it is a public key; however, it is zeroized as mentioned here. 13 CSP 13 The fixed key used in Cisco vendor ID generation. This key is NVRAM embedded in the module binary image and can be deleted by (plaintext) erasing the Flash. 14 CSP 14 The IPSec encryption key. Zeroized when IPSec session is DRAM terminated. (plaintext) Cisco 1721 and Cisco 1760 Modular Access Routers with MOD1700-VPN FIPS 140-2 Non-Proprietary Security Policy 78-16315-01 13 The Cisco 1721/1760 Cryptographic Module Table 5 Critical Security Parameters (Continued) 15 CSP 15 The IPSec authentication key. The zeroization is the same as DRAM above. (plaintext) 16 CSP 16 The RSA public key of the CA. "no crypto ca trust