A Standalone FPGA-Based Miner for Lyra2REv2 Cryptocurrencies

Jean Francois Tetu, Louis Charles Trudeau, Michiel Van Beirendonck, Alexios Balatsoukas-Stimming, Pascal Giard (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)


Lyra2REv2 is a hashing algorithm that consists of a chain of individual hashing algorithms, and it is used as a proof-of-work function in several cryptocurrencies. The most crucial and exotic hashing algorithm in the Lyra2REv2 chain is a specific instance of the general Lyra2 algorithm. This work presents the first hardware implementation of the specific instance of Lyra2 that is used in Lyra2REv2. Several properties of the aforementioned algorithm are exploited in order to optimize the design. In addition, an FPGA-based hardware implementation of a standalone miner for Lyra2REv2 on a Xilinx Multi-Processor System on Chip is presented. The proposed Lyra2REv2 miner is shown to be significantly more energy efficient than both a GPU and a commercially available FPGA-based miner. Finally, we also explain how the simplified Lyra2 and Lyra2REv2 architectures can be modified with minimal effort to also support the recent Lyra2REv3 chained hashing algorithm.

Original languageEnglish
Article number9007025
Pages (from-to)1194-1206
Number of pages13
JournalIEEE Transactions on Circuits and Systems I: Regular Papers
Issue number4
Publication statusPublished - Apr 2020


  • cryptocurrency
  • FPGA miner
  • hardware miner
  • Lyra2
  • Lyra2REv2
  • Lyra2REv3
  • MPSoC miner


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