Vendor: Rambus, Inc. Category: Symmetric Crypto

ChaCha20 Accelerators

The ChaCha-IP-13 (EIP-13) is an IP solution for accelerating the ChaCha20 cipher algorithm (RFC7539), supporting the NIST CTR mod…

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Overview

The ChaCha-IP-13 (EIP-13) is an IP solution for accelerating the ChaCha20 cipher algorithm (RFC7539), supporting the NIST CTR mode up to 12.8 Gbps @ 300MHz. Designed for fast integration, low gate count and full transforms, the ChaCha-IP-13 accelerator provides a reliable and cost-effective embedded IP solution that is easy to integrate into high-speed crypto pipelines.

How the ChaCha-IP-13 ChaCha20 Accelerators work

The ChaCha-IP-13 is a family of the cryptographic library elements in the Rambus hardware IP library (formerly of Inside Secure). For example, the ChaCha-IP-13 is the cipher core embedded in the VaultIP root of trust security cores providing support for TLS1.3 and HomeKit IoT applications (ChaCha20 is also available as SW implementation in VaultIP cores). The accelerators include I/O registers, encryption and decryption cores, and the logic for feedback modes and key scheduling.

Sustained performance for any object sizes ranges from 2 to 12.8 Gbps depending on the configuration and area. Gate count is around 30K gates depending on the configuration.

Key features

  • Wide bus interface (512-bit data, 256-bit keys) or 32-bit register interface
  • Key sizes: 128 and 256 bits
  • Includes key scheduling hardware
  • Feedback mode CTR. 

  • Low speed (High Frequency), Medium Speed, High Speed versions
  • Fully synchronous design

Block Diagram

ChaCha-IP-13 block diagram

Benefits

  • Silicon-proven implementation
  • Fast and easy to integrate into SoCs
  • Flexible layered design
  • Complete range of configurations
  • World-class technical support

Applications

  • TLS3.1

Files

Product Sheet Download

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

Specifications

Identity

Part Number
ChaCha-IP-13
Vendor
Rambus, Inc.
Type
Silicon IP

Security

Crypto Algorithm
Chacha20

Provider

Rambus, Inc.
HQ: USA
Rambus delivers industry-leading chips and silicon IP for the data center and AI infrastructure. With over three decades of advanced semiconductor experience, our products and technologies address the critical bottlenecks between memory and processing to accelerate data-intensive workloads. By enabling greater bandwidth, efficiency and security across next-generation computing platforms, we make data faster and safer.
Contact Rambus, Inc.

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Frequently asked questions about Symmetric Cryptography IP cores

What is ChaCha20 Accelerators?

ChaCha20 Accelerators is a Symmetric Crypto IP core from Rambus, Inc. 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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