[Resource Topic] 2025/026: How to use your brain for cryptography without trustworthy machines

Welcome to the resource topic for 2025/026

Title:
How to use your brain for cryptography without trustworthy machines

Authors: Wakaha Ogata, Toi Tomita, Kenta Takahashi, Masakatsu Nishigaki

Abstract:

In this work, we study cryptosystems that can be executed securely without fully trusting all machines, but only trusting the user’s brain. This paper focuses on signature scheme. We first introduce a new concept called ``server-aided in-brain signature,‘’ which is a cryptographic protocol between a human brain and multiple servers to sign a message securely even if the user’s device and servers are not completely trusted. Second, we propose a concrete scheme that is secure against mobile hackers in servers and malware infecting user’s devices.

ePrint: https://eprint.iacr.org/2025/026

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .