CRYPTOGRAPHIC PROCESSING SYSTEM, KEY GENERATION DE

专利名称：CRYPTOGRAPHIC PROCESSING SYSTEM, KEY

GENERATION DEVICE, ENCRYPTION DEVICE,DECRYPTION DEVICE, SIGNATURE

PROCESSING SYSTEM, SIGNATURE DEVICE,AND VERIFICATION DEVICE

发明人：Katsuyuki Takashima,Tatsuaki Okamoto申请号：US130885申请日：20110215

公开号：US20130028415A1公开日：20130131

专利附图：

摘要：The object is to provide a secure functional encryption scheme having a largenumber of cryptographic functions. An access structure is constituted by applying theinner-product of attribute vectors to a span program. The access structure has a degreeof freedom in design of the span program and design of the attribute vectors, thushaving a large degree of freedom in design of access control. A secure functionalencryption process having a large number of cryptographic functions is implemented byemploying the concept of secret sharing for the access structure.

申请人：Katsuyuki Takashima,Tatsuaki Okamoto

地址：Tokyo JP,Tokyo JP

国籍：JP,JP

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