Abstract:Since hash proof system (HPS) can be utilized to build versatilely cryptographic schemes, the study on realizing this cryptographic primitive has been a very active research area. With the increasing concerns on the huge progress in quantum computing, it urges cryptographers to explore the existence of quantum-resistant HPS schemes, such as the one relying on some lattice-based assumptions. However, most lattice-based HPS proposals are relatively inefficient (e.g., simply outputting one-bit key), even though l… Show more
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