KEY ESCROW BASED ON ASMUTH-BLOOM THRESHOLD SYSTEM
基于Asmuth-Bloom门限体制的密钥托管

A key escrow cryptosystem can not only provide protection for user's privacy, while at the same time, allows for the wiretapping when lawfully authorized. In this paper, a secret key escrow system based on Asmuth-Bloom threshold scheme is given and its security is analysed.