发明申请
US20150043735A1 RE-ENCRYPTED DATA VERIFICATION PROGRAM, RE-ENCRYPTION APPARATUS AND RE-ENCRYPTION SYSTEM
有权
重新加密数据验证程序，重新加密设备和重新加密系统
- 专利标题： RE-ENCRYPTED DATA VERIFICATION PROGRAM, RE-ENCRYPTION APPARATUS AND RE-ENCRYPTION SYSTEM
- 专利标题（中）： 重新加密数据验证程序，重新加密设备和重新加密系统
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申请号： US14480073申请日： 2014-09-08
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公开(公告)号： US20150043735A1公开(公告)日： 2015-02-12
- 发明人: Yoshihiro FUJII , Takuya Yoshida , Koji Okada
- 申请人： Kabushiki Kaisha Toshiba , Toshiba Solutions Corporation
- 申请人地址： JP Minato-ku JP Kawasaki-shi
- 专利权人： Kabushiki Kaisha Toshiba,Toshiba Solutions Corporation
- 当前专利权人： Kabushiki Kaisha Toshiba,Toshiba Solutions Corporation
- 当前专利权人地址： JP Minato-ku JP Kawasaki-shi
- 优先权： JP2012-074773 20120328
- 主分类号： H04L9/14
- IPC分类号： H04L9/14 ; H04L9/30
摘要：
In a decryption apparatus according to an embodiment, a holding device pre-holds a verification formula. A determination device performs a calculation based on the verification formula read from the holding device by substituting, into the verification formula, the part of the re-encrypted data received from a re-encryption apparatus and the public key of a re-encryption key generation apparatus and the private key of the decryption apparatus, to determine whether or not the verification formula holds true. An output device outputs verification success when a result of the determination indicates that the verification formula holds true.
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