WalnutDSA Signature Verification for Cyclone V SoC

Block Diagram

Solution Type: Qsys Component

End Market: Automotive, Consumer, Industrial, Medical, Military, Wireless

Evaluation Method: Source Code

Technology: Basic Functions: Miscellaneous

Cyclone Series: Cyclone® V SoC


A digital signature verification function that is implemented partially in HPS software and partially in FPGA programmable logic. The function is used for secure boot and secure firmware updates, and may also be used to validate signatures made over messages and certificates. For evaluation purposes, SecureRF provides a terminal-based signing application for Linux or Windows to enable customers to generate WalnutDSA signatures. The user specifies a message file (the file that is being signed), the private key of the trusted signing party, and the output file that the signature will be stored in. For production, SecureRF offers HSM-based key generation and signing appliances to Walnut customers.


  • Performs signature verification in under 1ms
  • Algorithm is resistant to all known Quantum Computing attacks
  • Very little ROM, RAM, and logic utilization required

Device Utilization and Performance

On CV SoC device (5CSEBA6U2317NDK). Contact SecureRF Corp. for other FPGA benchmarks. 10K Memory block type: 28 (5%) Block memory bits: 134,912 (2%) Dedicated logic registers: 4,612 (5%) ALM's: 4,040 (9.6%) Performs signature verification in under 1ms.

Getting Started

Contact SecureRF Corp. for Quick-start guide

IP Quality Metrics

Year IP was first released2018
Latest version of Quartus supported18.0
Altera Customer Use
IP has been successfully implemented in production with at least one customerN

Customer deliverables include the following:

  • Design file (encrypted source code or post-synthesis netlist)
  • Simulation model for ModelSim Altera edition
  • Timing and/or layout constraints
  • Testbench or design example
  • Documentation with revision control
  • Readme file
Any additional customer deliverables provided with IP
Detailed protocol description
Parameterization GUI allowing end user to configure IPN
IP core is enabled for OpenCore Plus SupportN
Source language
Testbench languageVerilog
Software drivers providedY
Driver OS supportLinux
User InterfaceAvalon-MM
IP-XACT Metadata includedN
Simulators supportedModelSim
Hardware validated Y. Altera Board Name Terasic DE10-Nano Cyclone V SoC board
Industry standard compliance testing performed
If No, is it planned?Y
IP has undergone interoperability testing
Interoperability reports available  Y

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