AES256-GCM-IP, Authenticated Encryption for 10G and 25G

Line-rate AES-GCM in hardware with 128- or 256-bit keys, 96-bit IV support, and AAD for message integrity.

 

AES256-GCM-IP provides authenticated encryption for data in motion and high-speed pipelines. The core uses a 128-bit data path and a fully-pipelined architecture so it can sustain 10G and 25G links and scale higher with clock frequency, while producing a 128-bit authentication tag for each packet or record.

 

 

 

Highlights

  • AES-GCM with 128- or 256-bit keys
  • 96-bit IV handling and standard 128-bit authentication tag
  • Additional Authenticated Data input for header integrity
  • 128-bit datapath with one block per clock throughput when pipelined
  • Parameterizable buffering for burst absorption and long streams
  • Clean streaming interfaces for encrypt, decrypt, and tag verify
  • Reference designs and test utilities for throughput and NIST vector checks

 

 

 

Why Macnica?

  • Packetization and IV management patterns that match your transport stack
  • Buffer sizing for jumbo frames and multi-stream operation at 10G and 25G
  • Guidance on key rotation and tag verification at the application boundary
  • Interoperability with TLS1.3-IP, TOE, UDP, and low-latency EMAC
  • Hardware selection for optics and cables that meet your latency and reach

 

Macnica workflow diagram

 

 

 

Key Specifications

  • Cipher: AES-GCM, 128 or 256-bit key
  • IV and tag: 96-bit IV, 128-bit tag, AAD input
  • Throughput: 128 bits per clock cycle in pipelined mode, suited to 10G and 25G links
  • Interfaces: Streaming payload in and out, register control and status
  • Resources: Pure RTL, no CPU or external DDR

 

Typical Applications

  • Secure telemetry and video streams
  • Encrypted links between FPGA appliances
  • Packet authentication for control and command channels

 

 

 

Resources

 

 

 

 

Get Started

 

Tell us link speed, packet sizes, and IV strategy. We will recommend buffer settings, demo projects, and a validated MAC pairing.

 

 

 

 

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