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A Hierarchical Threshold Signature

A Hierarchical Threshold Signature

Key management plays a significant role in blockchain technology regarding digital assets protection. Practically speaking, losing private keys leads to great losses. Improper key management and poor system implementation may increase the risk of asset being transferred maliciously. Take an extreme case that happened before as an example, a principal died suddenly and no one was able to recover keys so that the whole asset was frozen. To solve these problems, experts therefore propose threshold cryptography to reduce the risk of key management.