Kalyna Block Cipher: From Design Space Exploration to ASIC Design

• URL: http://arxiv.org/abs/2607.22269v1
• Date: Fri, 24 Jul 2026 13:07:45 GMT
• Title: Kalyna Block Cipher: From Design Space Exploration to ASIC Design
• Abstract summary: The Kalyna block cipher is a Ukrainian cryptography standard, selected through a national competition held between 2007 and 2010 and approved in 2015.<n>In this paper, we explore various design architectures to implement its encryption, decryption, and unified encryption/decryption functions.<n>We present hardware-efficient designs that include countermeasures against side-channel analysis (SCA) and fault injection (FI) attacks.
• Score: 1.5006258585503878
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The Kalyna block cipher is a Ukrainian cryptography standard, selected through a national competition held between 2007 and 2010 and approved in 2015. Although its software implementations have been introduced, hardware-efficient implementations of the algorithm, i.e., accelerators, do not exist. In this paper, we explore various design architectures to implement its encryption, decryption, and unified encryption/decryption functions, considering the trade-off between area and latency. We present hardware reduction techniques and introduce alternative designs with low area, latency, and energy consumption, targeting an application-specific integrated circuit (ASIC). We present hardware-efficient designs that include countermeasures against side-channel analysis (SCA) and fault injection (FI) attacks, such as hiding, masking, and duplication techniques. We validate these implementations in a 65\;nm ASIC chip. Experimental results confirm the need for alternative designs that explore the design search space for different requirements. The proposed architectures enable hiding the power SCA leakage by randomizing the execution of operations, and the temporal duplication in designs with countermeasures against the SCA attacks can mitigate the FI attacks. The functionality of the ASIC test chip, including various Kalyna designs, is validated through measurements.

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