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Method for secure and resilient distributed generation of elliptic curve digital signature algorithm (ECDSA) based digital signatures with proactive security
Method for secure and resilient distributed generation of elliptic curve digital signature algorithm (ECDSA) based digital signatures with proactive security
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机译:具有主动安全性的基于椭圆曲线数字签名算法(ECDSA)的数字签名安全有弹性的分布式生成方法
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摘要
Described is system for generation of elliptic curve digital signature algorithm (ECDSA) based digital signatures. A Secret-Share protocol is initialized between a client and a set of servers to share a set of shares of a private key s among the set of servers. The set of servers initializes a protocol to generate a digital signature on a message using the set of shares of the private key s without reconstructing or revealing the private key s. The set of servers periodically initializes a Secret-Redistribute protocol on each share of the private key s to re-randomize the set of shares. A Secret-Open protocol is initialized to reveal the private key s to an intended recipient, wherein the private key s is used to compute the digital signature.
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