ChaCha20-Poly1305 Multi-Booster

The ChaCha20-Poly1305 Multi-Booster Crypto Engine is RFC7539 compliant to provide Authenticated Encryption with Associated Data (AEAD) using the ChaCha20 stream cipher combined with the Poly1305 message-authentication code.

This Crypto Engine targets high-performance applications, where a high throughput is required (up to several hundred of Gbps). Thanks to its scalability, it can be tailored to reach the best trade-off between performances, area and technology.



The ChaCha20-Poly1305 Multi-Booster Crypto Engine is available for ASIC and FPGA, with simple interfaces and easy to integrate. The unique architecture enables a high level of flexibility. The throughput and features required by a specific application can be taken into account in order to select the most optimal configuration for any FPGA or ASIC technology. The Crypto Engine can be combined with scatter/gather DMA and AMBA interfaces (AHB/AXI) enabling very high throughput in SoC solutions.

This Crypto Engine is also available in the eSecure IP solution (BA470).


  • ASIC and FPGA
  • Fully compliant with RFC7539
  • Supports authentication and encryption mode (AEAD)
  • Scalable to reach the requested trade-off between performance, area and technology
  • AMBA AHB/AXI bridges (with optional scatter/gather DMA)
  • Low power features
  • Poly1305 key generation by ChaCha20
  • Full synchronous design


  • Data center
  • Cloud computing
  • OpenSSH
  • IPsec

Reference: BA420