产品描述
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.
Two architectural versions are available to suit system requirements. The Standard version (AES32) 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 (AES128) achieves higher throughput, using a 128-bit datapath and requiring 11/13/15 clock cycles for each data block.
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.
主要特性与优势
- Standards: Satisfies Federal Information Processing Standard (FIPS) Publication 197 from the US National Institute of Standards and Technology (NIST)
- Size: From 778 ALMs to 5,812 ALMs depending on version and target device
- Configuration: Works with a pre-expended key or can integrate the optional key expansion function
- Deliverables: include test benches, C model and test vector generator
特色技术文档
