Key generation system

专利名称：Key generation system发明人：申 吉浩,前田 勝之申请号：JP2018099195申请日：20180507公开号：JP2019198052A公开日：20191114

专利附图：

摘要：Problem to be solved: to provide a secret key generation system realizingcomplex access control while keeping the number of keys to be managed and

distributed. The first secret key (master key 1) and the key label (\"service1\") generate asecond secret key (\"system1\" 10) reflecting the key label, and a plurality of calculationmeans having unidirectional means are applied a plurality of times to generate thenecessary secret key.As a calculation method with unidirectional, we use hash signature,multiplication in finite groups, or scalar multiplication in elliptic curves on finite fields.As aresult, only a secret key to be managed as the secret can be kept, and a key with some

authority can be generated. Diagram

申请人：株式会社アメニディ

地址：愛知県名古屋市西区名駅二丁目２７番８号

国籍：JP

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