Crypto Cafe - Jason Legrow - Mar 11, 2024

Speaker: Dr. Jason LeGrow, Virginia Tech
Title: Post-Quantum Blind Signatures from Group Actions
Blind signatures are a kind of cryptographic scheme which allows a User to receive a Signer’s signature on a message, in such a way that the message is not revealed to the Signer. Blind signatures can be used in many applications, such as a electronic voting and anonymous purchasing. To resist attacks by quantum computers, we must design blind signature schemes based on computational problems which are believed to be hard for quantum computers: so-called post-quantum protocols. I will discuss techniques for constructing post-quantum blind signatures from cryptographic group actions in the setting of isogeny-based cryptography and code-based cryptography.