讲座内容摘要：

Distributed key generation is a method for a set of players to generate a pair of public key and private key together, such that the public key is output publicly while the private key is distributed among the players by a secret sharing method. Secure distributed key generation in finite field for discrete-log based cryptosystems has been studied for many year and many protocols have been proposed and widely used in threshold cryptosystems and distributed cryptographic computing. In this talk we focus on secure distributed key generation in bilinear groups and propose such a protocol on vector space access structures based on verifiable secret sharing. The newly proposed distributed key generation protocol is secure and has a wide application.

讲座人简介：

张福泰，南京师范大学教授，博导。现为中国密码学会理事，密码学报编委，中国密码学会密码算法专业委员会委员。长期从事密码学及相关方向的教学和科研工作。主要研究兴趣包括公钥密码体制、聚合签名、线性同态签名、云存储中的数据安全等。