Paper 2025/1415

Quantum Implementation of SHA-1

Seyoung Yoon, Hansung University
Gyeongju Song, Hansung University
Kyungbae Jang, Hansung University
Sangmin Cha, Hansung University
Hwajeong Seo, Hansung University
Abstract

As quantum computing technology rapidly advances, threats to existing symmetric-key and public-key cryptosystems are becoming increasingly real. In this study, we implement a SHA-1 quantum circuit that operates efficiently in a quantum computing environment. We optimize the quantum circuit, focusing on minimizing total circuit depth, a key performance indicator of quantum algorithms. The SHA-1 quantum circuit implementation used 985 qubits, resulting in a measured circuit depth of 9,026. Furthermore, by integrating this optimized circuit with the Grover algorithm, we establish the foundation for an efficient quantum attack on the SHA-1 algorithm. This research is significant not only because it presents a resource-efficient SHA-1 quantum implementation but also because it enables accelerated attacks in a quantum computing environment.

Metadata
Available format(s)
PDF
Category
Implementation
Publication info
Published elsewhere. WISA'25
Keywords
Quantum ComputerGrover's AlgorithmQuantum Collision SearchSHA-1Post-Quantum Security
Contact author(s)
sebbang99 @ gmail com
thdrudwn98 @ gmail com
starj1023 @ gmail com
xhxhdwkdpsyentific @ gmail com
hwajeong84 @ gmail com
History
2025-08-04: approved
2025-08-04: received
See all versions
Short URL
https://ia.cr/2025/1415
License
No rights reserved
CC0

BibTeX

@misc{cryptoeprint:2025/1415,
      author = {Seyoung Yoon and Gyeongju Song and Kyungbae Jang and Sangmin Cha and Hwajeong Seo},
      title = {Quantum Implementation of {SHA}-1},
      howpublished = {Cryptology {ePrint} Archive, Paper 2025/1415},
      year = {2025},
      url = {https://eprint.iacr.org/2025/1415}
}
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