VLSI characterization of the cryptographic hash function BLAKE

Luca Henzen, Jean Philippe Aumasson, Willi Meier, Raphael C.W. Phan

Research output: Contribution to journalArticleResearchpeer-review

5 Citations (Scopus)


Cryptographic hash functions are used to protect information integrity and authenticity in a wide range of applications. After the discovery of weaknesses in the current deployed standards, the U.S. Institute of Standards and Technology started a public competition to develop the future standard SHA-3, which will be implemented in a multitude of environments, after its selection in 2012. In this paper, we investigate high-speed and low-area hardware architectures of one of the 14 second-round candidates in this competition: BLAKE. VLSI performance results of the proposed high-speed designs indicate a throughput improvement between 16% and 36% compared to the current standard SHA-2. Additionally, we propose a compact implementation of BLAKE with memory optimization that fits in 0.127 mm 2 of a 0.18 μm CMOS. Measurements reveal a minimal power dissipation of 9.59 μW/MHz at 0.65 V, which suggests that BLAKE is suitable for resource-limited systems.

Original languageEnglish
Article number5551268
Pages (from-to)1746-1754
Number of pages9
JournalIEEE Transactions on Very Large Scale Integration (VLSI) Systems
Issue number10
Publication statusPublished - Oct 2011
Externally publishedYes


  • Cryptographic hash functions
  • latch memory
  • low-power
  • SHA-3
  • VLSI implementations

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