The Multi-user Constrained PRF Security of Generalized GGM Trees for MPC and Hierarchical Wallets

ePrint Report: The Multi-user Constrained PRF Security of Generalized GGM Trees for MPC and Hierarchical Wallets

Chun Guo, Xiao Wang, Xiang Xie, Yu Yu

Multi-user (mu) security considers large-scale attackers that, given access to a number of cryptosystem in
stances, attempt to compromise at least one of them. We initiate the study of mu security of the so-called
GGMtree that stems from the PRG-to-PRF transformation of Goldreich, Goldwasser, and Micali, with a goal
to provide references for its recently popularized …

access attackers compromise eprint report large mpc report scale security trees wallets wang