The 2Hash OPRF Framework and Efficient Post-Quantum Instantiations

ePrint Report: The 2Hash OPRF Framework and Efficient Post-Quantum Instantiations

Ward Beullens, Lucas Dodgson, Sebastian Faller, Julia Hesse

An Oblivious Pseudo-Random Function (OPRF) is a two-party protocol for jointly evaluating a Pseudo-Random Function (PRF), where a user has an input x and a server has an input k. At the end of the protocol, the user learns the evaluation of the PRF using key k at the value x, while the server learns nothing about the user's input or output. …

end eprint report framework function input oblivious party post-quantum protocol quantum random report server