Paper 2026/1034

Vistrutah on FPGA: High-Throughput Pipelined Architecture and Comparison with Wider AES Variant

Ahmet MALAL, Middle East Technical University, Aselsan (Turkey)
Oğuz Yayla, Middle East Technical University
Abstract

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.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint.
Keywords
Vistrutahwide-block ciphersWAES-256FPGA implementationhigh-throughput pipelined architecture.
Contact author(s)
ahmet malal @ metu edu tr
oguz @ metu edu tr
History
2026-05-25: approved
2026-05-22: received
See all versions
Short URL
https://ia.cr/2026/1034
License
Creative Commons Attribution-NonCommercial-NoDerivs
CC BY-NC-ND

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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