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专利名称：INFORMATION GENERATING DEVICE,
INFORMATION GENERATING METHOD,AND INFORMATION GENERATINGPROGRAM AND STORAGE MEDIUMTHEREOF
发明人：SUZUKI, Koutarou,NISHIMAKI, Ryo申请号：EP10767171.1申请日：20100423公开号：EP2424155A1公开日：20120229
专利附图：
摘要：Hierarchical cryptography expressed in a general semiordered structure otherthan a tree structure is implemented. In information generation, random numbers σ and(σ) ∈ Z are generated; main information k = σΣ vb* + b* is calculated; and derivationinformation k = σΣ vb* + b* is calculated for each j ∈ w(v) In information derivation,random numbers σ and (σ) ∈ Z are generated; main information k = σΣ uk + k iscalculated; and derivation information k = σΣ k + k is calculated for each j ∈ w(v).
申请人：Nippon Telegraph And Telephone Corporation
地址：3-1 Otemachi 2-chome Chiyoda-ku Tokyo 100-8116 JP
国籍：JP
代理机构：MERH-IP Matias Erny Reichl Hoffmann
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