MIPT: Digital Signature System

History

2025: Product Announcement

On October 29, 2025, the MIPT announced the creation of the first collective digital signature system in Russia, resistant to hacking using quantum computing devices. This development is aimed at ensuring the protection of critical infrastructure, banking and blockchain platforms.

According to the press service of the university, a graduate student of the MIPT blockchain department, Leonid Kartushin, together with supervisor Alexei Kurochkin, created an algorithm that allows you to bypass the problem of choosing between vulnerable schemes like RSA and new post-quantum cryptography standards that do not support the collective signature function. The development allows a group of users to generate a single signature for any document, while none of them has a full key, which minimizes the risk of theft.

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Фото: Freepik

The solution is based on the Dilithium algorithm, standardized by the US National Institute of Standards and Technology (NIST). According to Kartushin, the main advantage of the Dilithium-based scheme is a balanced combination of security, performance and size.

Traditional digital signature algorithms such as RSA and ECDSA are vulnerable, Cartushin argues, because their robustness is based on tasks effectively solved by quantum computers. Dilithium applies more sophisticated lattice-based calculations - intractable problems that imply finding a certain position in a multidimensional space, which creates serious obstacles even for quantum machines.

According to MIPT, this development implements the principle of distributed trust: to perform critical actions, such as signing a document or confirming a transaction, the consent of several independent participants is required. The created prototype of the system, written in Python, has already demonstrated its performance.^[1]

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