Model E

Used in conjuction with DarkLink Model S, DarkLink Model E is a site-to-branch MACsec encryptor with data rates of 1Gbps or 10 Gbps

Designed to Ethernet Security Specification (ESS) and IEEE Std 802.1AEbn MACsec standard.

Designed with several high assurance features such as FAIL-SAFE to ensure reliable and secure operation.

DarkLink is designed with Intel’s family of FPGAs, which offers high performance and protection from network and physical attacks.

Top Level Features
  • Multiple Data rates: 1Gbps or 10 Gbps (2/20 Gbps full duplex)
  • Back-to-back packet processing
  • Ethernet based 256 bit AES-GCM with Galois Message Authentication (GMAC) per IEEE 802.1AEbn and ESS
  • Support for Extended Packet Numbering per IEEE 802.1AE (GCM-AES-XPN-256)
  • Latency: Less than 2 micro-seconds
  • Secure firmmware upgradeable to future protocols and cryptographic standards

Planned FIPS-140-2, level 3

Ease of Use Setup and Maintenance
  • Remote management using SNMP v2 or v3 or browser-based management configurations
  • Key Manager support via KMIP (Key Management Interoperability Protocol), compatible with 3rd party external key manager products
  • Dual redundant hot-swappable AC power supplies
  • Dual hot-swappable fans
  • Big data in-transit protection
  • Site-to-branch interconnectivity
  • Business continuity, disaster recovery, and backup
Network Interfaces

Data Interfaces
Separate clear data and encrypted ports
1/10 Gbs (SFP+)

Remote Management Interface
HTTPS/SNMP Interface RJ-45 10/100/1000 Mbps

High Availability Sync interface RJ-45


Algorithms: 256-bit AES-GCM, MACsec Key Agreement (MKA)

Key Fill Interface DS-101 and rear panel RJ-45 key port Crypto Ignition Key (CIK) for secure operation

Replay protection based on the PN windowing MKA with pre-placed keys per MKA with Secturion key set-up:

  • Key storage, lookup, and expansion
  • Configurable key lookup for Tx is based on MAC header (MAC addresses and VLAN)
  • Key lookup for Rx is based on either MAC header or the SCI

Dimensions (W x H x D) 8 x 1.6 x 9 in.

Weight 4 lb

Power 20 Watts; 110 to 240 VAC; 50-60 Hz

Battery External user replaceable battery, one “1/2AA” lithium cell


Operating Temperature -5° to 40° C

Storage Temperature -40° to 60° C

Humidity 5% to 95% non-condensing

EMI/EMC Telcordia GR-1089-CORE, ID 8, Radiated emission and FCC Class B, Consumer