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CLP-200: Pipelined GCM-AES Core

The CLP-200: Pipelined GCM-AES core implements the GCM-AES algorithm as specified in NIST Special Publication 800-38D “Recommendation for Block Cipher Modes of Operation: Galois/Counter Mode (GCM) and GMAC”. For high performance cryptographic systems, AES-GCM is the algorithm of choice. It uses a high performance MAC algorithm based on Galois Field multiplication and CTR mode encryption which can be pipelined for high throughput operations.

The CLP-200 has several configuration options which allow the performance of the resulting core to be tailored to the system performance requirements. The key configuration options include:

  • The number of AES cores instantiated which determines the core bandwidth
  • The number of key expanders
  • The number of key contexts
  • Key size options – 128-, 192- and/or 256-bits
  • Ingress/egress FIFO depths

 

Features

  • Scalable architecture configurable from 18 to 128 bits/cycle (5 – 40 Gbps)
  • Flow through design
  • Fully interleaved capabilities on any number of contexts
  • Stall mitigation when context switching
  • Supports 128-, 192- and 256-bit keys
  • GCM and GMAC modes
  • Scalable context switch rate
  • 96-bit IV support with no external logic
  • Flow through AAD option as a configuration parameter
  • Internal generation of hash key

Benefits

  • Silicon proven
  • Highly integrated
  • SoC/ASIC developers and embedded system OEMs benefit from
    • Reduced time to market
    • Reduced risk
    • Highly tuned solutions for performance, power and size
  • IP developed by industry experts through a structured and rigorous development and verification program

Applications

  • MACsec (802.1AE)
  • IPsec
  • Tape storage (P1619.1)
  • Fibre Channel Security Protocols (FC-SP)
  • SSH

Downloads

 

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