Click for homepage
Sierra II
Type 1 cryptographic engine - this page is a stub

Sierra is a highly-integrated embeddable cryptographic engine with NSA Type 1 cryptographic algorithms, implemented in a single chip, introduced around 2004 by Harris Corporation (now: L3Harris) in Rochester (NY,USA) [2]. Unlike the contemporary Citadel II chip – which is a non-Type 1 device – the Sierra II is used in a number of US military products, including the AN/PRC-152. Sierra II is the successor to the Sierra (or Sierra I) cryptographic engine that was released in 1998.


Products that use Sierra II
  • Harris RF-310M-HH, suite B compatible multiband handheld radio
  • AN/PRC-152, Harris Flacon III
Features
  • ≤ 300 Mbps
  • Legacy algorithm support
  • Low power consumption
  • Advanced programmability
  • Compliant with Joint Tactical Radio System (JTRS)
  • Compliant with Crypto Modernization Program (CMP)
  • 280-ball µBGA (16 x 16 mm), or 608-ball BGA (31 x 31 mm)
  • Temperature -40°C to +85°C
  • Voltage 1.8V DC (ASIC) or 3.3V (module)
  • Reprogrammable field software
  • Classification TS/SCI
Type 1 algorithms
  • WALBURN
  • GOODSPEED
  • ACCORDION
  • FIREFLY / Enhanced FIREFLY
  • JOSEKI Decrypt
  • High-assurance AES
Type 3 algorithms
  • DES,
  • Tripple DES (3DES)
  • AES
  • Digital Signature Standard (DSS)
  • Secure Hash Algorithm (SHA)
Type 4 algorithms
Key management
  • SARK / PARK (KY-57, KYV-5 and KG-84A/C OTAR)
  • DS-101 Key Fill
  • DS-102 Key Fill
  • SINGARS Mode 2/3 Fill
  • Benign Key / Benign Fill
Documentation
  1. Harris Sierra II, Programmable Cryptographic ASIC, product leaflet
    DS-296E. Harris Corporation, November 2015.
References
  1. L3Harris, Sierra II Programmable Cryptographic ASIC
    Retrieved November 2017.

  2. EE Times, NSA certifies Harris crypto module
    23 September 2004.
Further information
Any links shown in red are currently unavailable. If you like the information on this website, why not make a donation?
Crypto Museum. Created: Saturday 09 November 2019. Last changed: Saturday, 09 November 2019 - 12:50 CET.
Click for homepage