Vendor: EnSilica Category: Symmetric Crypto

ChaCha20 stream cipher core

The eSi-CHACHA20 core is an easy to use CHACHA20 stream cipher hardware accelerator that is compliant with the IETF RFC7539 stand…

Chacha20 View all specifications

Overview

The eSi-CHACHA20 core is an easy to use CHACHA20 stream cipher hardware accelerator that is compliant with the IETF RFC7539 standard.

ChaCha20, along with the Poly1305 encryption algorithm, has been specified for use in the TLS protocol, within RFC7905.

Key features

  • Simple register based interface
  • Processing of 64-bytes in as low as 13 clock cycles
  • Selection between High Throughput or Low Gate-Count architectures
  • Real-time selection between key generation or cipher/decipher modes
  • AMBA 3 AHB slave interface for configuration and burst data transfers

Block Diagram

eSi-ChaCha20 block diagram

Benefits

  • Easy integration into Arm or other microprocessor SoC
  • Small size and high performance

Applications

  • Transport Layer Security (TLS)
  • OpenSSH
  • IPsec
  • Ultra-low power embedded web-servers

What’s Included?

  • RTL
  • Testbench
  • Software libraries

Specifications

Identity

Part Number
eSi-ChaCha20
Vendor
EnSilica
Type
Silicon IP

Security

Crypto Algorithm
Chacha20

Provider

EnSilica
HQ: UK

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Frequently asked questions about Symmetric Cryptography IP cores

What is ChaCha20 stream cipher core?

ChaCha20 stream cipher core is a Symmetric Crypto IP core from EnSilica 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.

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