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AES-GCM: Authenticated Encrypt/Decrypt Engine

Computer Aided Software Technologies, Inc (dba CAST)

Member

The AES-GCM encryption IP core implements Rijndael encoding and decoding in compliance with the NIST Advanced Encryption Standard. It processes 128-bit blocks, and is programmable for 128-, 192-, and 256-bit key lengths.

Four architectural versions are available to suit system requirements. The Standard version (AES-GCM-S) is more compact, using a 32-bit datapath and requiring 44/52/60 clock cycles for each data block (128/192/256-bit cipher key, respectively). The Fast version (AES-GCM-F) achieves higher throughput using a 128-bit datapath and requiring 11/13/15 clock cycles for each data block depending on key size.

For applications where throughput is critical there are two additional versions. The High Throughput AES-GCM-X can process 128 bits/cycle and the Higher Throughput AES-GCM-X2 can process 256 bits/cycle respectively independent of the key size.

GCM stands for Galois Counter. GCM is a generic authenticate-and-encrypt block cipher ...

The AES-GCM encryption IP core implements Rijndael encoding and decoding in compliance with the NIST Advanced Encryption Standard. It processes 128-bit blocks, and is programmable for 128-, 192-, and 256-bit key lengths.

Four architectural versions are available to suit system requirements. The Standard version (AES-GCM-S) is more compact, using a 32-bit datapath and requiring 44/52/60 clock cycles for each data block (128/192/256-bit cipher key, respectively). The Fast version (AES-GCM-F) achieves higher throughput using a 128-bit datapath and requiring 11/13/15 clock cycles for each data block depending on key size.

For applications where throughput is critical there are two additional versions. The High Throughput AES-GCM-X can process 128 bits/cycle and the Higher Throughput AES-GCM-X2 can process 256 bits/cycle respectively independent of the key size.

GCM stands for Galois Counter. GCM is a generic authenticate-and-encrypt block cipher mode. A Galois Field (GF) multiplier/accumulator is utilized to generate an authentication tag while CTR (Counter) mode is used to encrypt.

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Key Features

  • The NIST-validated core operates using the AES Rijndael Block Cipher Algorithm, being implemented according to the NIST Special Publication 800-38D.
  • It processes 128-bit data in 32-bit blocks, employing user-programmable key size of 128, 192, or 256 bits and supporting any size IV length.
  • Easily integrated, supporting pre- or on-the-fly expanded keys, fully synchronous & single-clock, can be bridged to AMBA buses or integrated with DMA.
  • Available in VHDL or Verilog source code format, or as a targeted FPGA.
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Offering Brief

Offering Brief

Device Family Agilex® 3 FPGA C-Series, Agilex® 5 FPGA D-Series, Agilex® 5 FPGA E-Series, Agilex® 7 FPGA F-Series, Agilex® 7 FPGA I-Series, Agilex® 7 FPGA M-Series, Agilex® 9 FPGA Direct RF-Series, Arria® 10 GT FPGA, Arria® 10 GX FPGA, Arria® 10 SX FPGA, Arria® V GT FPGA, Arria® V GX FPGA, Arria® V GZ FPGA, Arria® V ST FPGA, Arria® V SX FPGA, Cyclone® 10 GX FPGA, Cyclone® 10 LP FPGA, Cyclone® IV E FPGA, Cyclone® IV GX FPGA, Cyclone® V E FPGA, Cyclone® V GT FPGA, Cyclone® V GX FPGA, Cyclone® V SE FPGA, Cyclone® V ST FPGA, Cyclone® V SX FPGA, MAX® 10 FPGA, Stratix® 10 AX FPGA, Stratix® 10 DX FPGA, Stratix® 10 GX FPGA, Stratix® 10 SX FPGA, Stratix® 10 TX FPGA, Stratix® III FPGA, Stratix® IV E FPGA, Stratix® IV GX FPGA, Stratix® V GS FPGA, Stratix® V GX FPGA
Offering Status Production
Integrated Testbench Yes
Evaluation License Yes
Design Examples Available Yes
Compliance Yes
Latest Quartus Version Supported 24.3.1
Development Language Encrypted Verilog, Encrypted VHDL, Verilog, VHDL

Verilog/System Verilog, Encrypted Verilog/System Verilog, VHDL, Encrypted VHDL, or FPGA netlist

System Verilog testbench

Comprehensive documentation

Sample synthesis and simulation scripts

Software model

Ordering Information

AES-GCM

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