CN103946910B - 密码处理系统、密码处理方法以及密钥生成装置 - Google Patents

密码处理系统、密码处理方法以及密钥生成装置 Download PDF

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Publication number
CN103946910B
CN103946910B CN201280056310.4A CN201280056310A CN103946910B CN 103946910 B CN103946910 B CN 103946910B CN 201280056310 A CN201280056310 A CN 201280056310A CN 103946910 B CN103946910 B CN 103946910B
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China
Prior art keywords
vector
formula
basis
key
encryption
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CN201280056310.4A
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English (en)
Chinese (zh)
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CN103946910A (zh
Inventor
高岛克幸
冈本龙明
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Mitsubishi Electric Corp
NTT Inc
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Mitsubishi Electric Corp
Nippon Telegraph and Telephone Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
    • H04L9/3073—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves involving pairings, e.g. identity based encryption [IBE], bilinear mappings or bilinear pairings, e.g. Weil or Tate pairing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption key
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution
    • H04L2209/601—Broadcast encryption

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Mathematical Physics (AREA)
  • Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Storage Device Security (AREA)
  • Mobile Radio Communication Systems (AREA)
CN201280056310.4A 2011-11-18 2012-11-12 密码处理系统、密码处理方法以及密钥生成装置 Active CN103946910B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011252244A JP5677273B2 (ja) 2011-11-18 2011-11-18 暗号処理システム、暗号処理方法、暗号処理プログラム及び鍵生成装置
JP2011-252244 2011-11-18
PCT/JP2012/079210 WO2013073488A1 (ja) 2011-11-18 2012-11-12 暗号処理システム、暗号処理方法、暗号処理プログラム及び鍵生成装置

Publications (2)

Publication Number Publication Date
CN103946910A CN103946910A (zh) 2014-07-23
CN103946910B true CN103946910B (zh) 2017-05-31

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CN201280056310.4A Active CN103946910B (zh) 2011-11-18 2012-11-12 密码处理系统、密码处理方法以及密钥生成装置

Country Status (8)

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US (1) US9203622B2 (enExample)
EP (1) EP2782087B1 (enExample)
JP (1) JP5677273B2 (enExample)
KR (1) KR101581605B1 (enExample)
CN (1) CN103946910B (enExample)
ES (1) ES2613811T3 (enExample)
IN (1) IN2014CN04110A (enExample)
WO (1) WO2013073488A1 (enExample)

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WO2016088251A1 (ja) * 2014-12-05 2016-06-09 三菱電機株式会社 暗号システム、マスター鍵更新装置及びマスター鍵更新プログラム
JP6081036B2 (ja) * 2014-12-05 2017-02-15 三菱電機株式会社 復号条件追加装置及び暗号システム
US9516000B2 (en) * 2015-03-27 2016-12-06 International Business Machines Corporation Runtime instantiation of broadcast encryption schemes
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Also Published As

Publication number Publication date
JP5677273B2 (ja) 2015-02-25
IN2014CN04110A (enExample) 2015-07-10
US20140298028A1 (en) 2014-10-02
ES2613811T3 (es) 2017-05-26
KR101581605B1 (ko) 2015-12-30
EP2782087A1 (en) 2014-09-24
EP2782087A4 (en) 2015-09-09
KR20140093281A (ko) 2014-07-25
CN103946910A (zh) 2014-07-23
US9203622B2 (en) 2015-12-01
EP2782087B1 (en) 2016-12-28
JP2013109048A (ja) 2013-06-06
WO2013073488A1 (ja) 2013-05-23

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