Vendor: CAST Category: Symmetric Crypto

AES Key Expander

The KEXP IP core performs AES key expansion, and is an option for the AES, AES-P, AES-CCM and AES-GCM cores.

AES View all specifications

Overview

The KEXP IP core performs AES key expansion, and is an option for the AES, AES-P, AES-CCM and AES-GCM cores. 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 (KEXP-P) is more compact and is used with AES cores using a 32-bit datapath.  The Fast version (KEXP-F) achieves higher throughput in conjunction with AES cores using a 128-bit datapath.  

The KEXP core is a fully synchronous design and has been evaluated in a variety of technologies, and is available optimized for ASICs or FPGAs.  
 

Key features

  • Satisfies Federal Information Processing Standard (FIPS) Publication 197 from the US National Institute of Standards and Technology (NIST)
  • Employs user-programmable key size of 128, 192 or 256 bits
  • Two architectural versions:
    • Standard is more compact: 32-bit data path size
    • Fast yields higher transmission rates: 128-bit data path
  • Suitable for use with AES cores
  • Simple, fully synchronous, reusable design
  • Available as fully functional and synthesizable VHDL or Verilog, or as a netlist for popular programmable devices
  • Complete deliverables include test benches, C model and test vector generator

Block Diagram

KEXP block diagram

Specifications

Identity

Part Number
KEXP
Vendor
CAST
Type
Silicon IP

Security

Crypto Algorithm
AES

Files

Product Sheet Download

Note: some files may require an NDA depending on provider policy.

Provider

CAST
HQ: USA

Learn more about Symmetric Crypto IP core

From Classical CAN and CAN FD to CAN XL: Functional Safety and Security for Next-Generation In-Vehicle Communication

This article reviews the functional-safety attributes of Classical CAN and CAN FD, then explains how CAN XL preserves and extends them. It also discusses higher-layer safety protocols, fault-tolerant CAN XL controller implementations, and CANsec, the CAN XL security extension inspired by the MACsec model. Finally, it highlights how the CAST CAN XL controller IP and CANsec acceleration IP can support the efficient deployment of safety- and security-capable in-vehicle networks.

CANsec: Security for the Third Generation of the CAN Bus

CANsec is a resource-efficient solution for securing the CAN bus against the most common cyber security threats on software-defined vehicles. Here we show that the encryption and authentication of CAN XL frames are possible without latencies or loss...

Frequently asked questions about Symmetric Cryptography IP cores

What is AES Key Expander?

AES Key Expander is a Symmetric Crypto IP core from CAST listed on Semi IP Hub.

How should engineers evaluate this Symmetric Crypto?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this Symmetric Crypto IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

×
Semiconductor IP