发明名称 |
ENCRYPTION PROCESSING SYSTEM, KEY GENERATION DEVICE, ENCRYPTION DEVICE, DECRYPTION DEVICE, SIGNATURE PROCESSING SYSTEM, SIGNATURE DEVICE AND VERIFICATION DEVICE |
摘要 |
<p>The object is to provide a secure functional encryption scheme having a large number of cryptographic functions. An access structure is constituted by applying the inner-product of attribute vectors to a span program. The access structure has a degree of freedom in design of the span program and design of the attribute vectors, thus having a large degree of freedom in design of access control. A secure functional encryption process having a large number of cryptographic functions is implemented by employing the concept of secret sharing for the access structure.</p> |
申请公布号 |
EP2565862(A1) |
申请公布日期 |
2013.03.06 |
申请号 |
EP20110774680 |
申请日期 |
2011.02.15 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION;NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
TAKASHIMA, KATSUYUKI;OKAMOTO, TATSUAKI |
分类号 |
G09C1/00 |
主分类号 |
G09C1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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