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Journal of Information Security and Applications

A post-quantum signcryption scheme using isogeny based cryptography

Kunal Dey, Sumit Kumar Debnath, Pantelimon Stănică, Vikas Srivastava

Published Jul 30, 2022• 15 citations
Publisher
DOI
10.1016/j.jisa.2022.103280

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Public-key cryptography provides security for digital systems and communication. Traditional cryptographic solutions are constantly improved, e.g., to suppress brute-force attacks. However, Shor’s algorithm suited for quantum computers can break the bedrock of most currently used systems, i.e., the RSA problem and discrete logarithm problem. Post-quantum cryptography can withstand attacks carried out by quantum computers. Several families of post-quantum systems exist; one of them is isogeny-based cryptography. As a main contribution, in this paper, we provide a survey of chosen, fundamental isogeny-based schemes. The target audience of this review is researchers interested in practical aspects of this field of cryptography; therefore the survey contains exemplary implementations. Our goal was not to develop an efficient implementation, but to provide materials that make it easier to analyze isogeny-based cryptography.