Discovery Of Weak Research Articles

Implementation of BLAKE Hash Function on FPGA

Along with the development of network technologies,cryptographic hash functions are used to protect information integrity and authenticity in a wide range of applications.Due to the discovery of weaknesses in the widely deployed hash algorithms MD5 and SHA1,the U.S.National Institute of Standards and Technology started a public competition to develop the future standard SHA-3.In this paper,we first survey the hardware implementations of BLAKE which is one of the finalists of SHA-3 competition,and then optimize the critical path of the BLAKE algorithm.The new architecture achieved a better throughput.

VLSI Characterization of the Cryptographic Hash Function BLAKE

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 mm2 of a 0.18 μ m 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.