关键词: 公钥基础设施（PKI） 密钥托管 托管代理 状态树 欺诈 密钥托管方案 防欺诈 PKI 门限 分配机制

Abstract: In this paper,we propose a secret key escrow scheme to Identify Cheaters based on PKI（Public Key Infrastructure） ,At the sametime, we propose a distribution mechanism of key escrow. Since this threshold is a status-tree based （t,n）secret sharing scheme, i

Key words: Public key infrastructure （PKI）, Key escrow, Escrow agent, Status-tree, Cheating