Oğuz Yayla
, Middle East Technical University
In response to the National Institute of Standards and Technology (NIST)'s 2024 call for wider variants of the Advanced Encryption Standard (AES), this paper presents the first FPGA-based hardware evaluation of Vistrutah, a recently proposed wide-block cipher constructed from AES round primitives. Vistrutah is implemented on a Xilinx Kintex UltraScale+ KCU116 FPGA and evaluated under identical conditions against the published wider Rijndael variant WAES-256. The 256-bit full configuration achieves 211.57 Gbps at 826.44 MHz, corresponding to a 2.6% throughput difference and a 2.7% frequency difference relative to WAES-256. The design also reports lower power consumption (33.2% reduction) and reduced resource usage (17.7% reduction in flip-flops and LUTs combined). These results provide an initial hardware-based comparison of two AES-compatible 256-bit block constructions and offer practical data for assessing wide-block designs on FPGA platforms.
BibTeX
@misc{cryptoeprint:2026/1034,
author = {Ahmet MALAL and Oğuz Yayla},
title = {Vistrutah on {FPGA}: High-Throughput Pipelined Architecture and Comparison with Wider {AES} Variant},
howpublished = {Cryptology {ePrint} Archive, Paper 2026/1034},
year = {2026},
url = {https://eprint.iacr.org/2026/1034}
}
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