DE69942386D1 - Verfahren zur digitalen Unterschrift und Verfahren und Vorrichtung zur Verwaltung einer Geheiminformation - Google Patents
Verfahren zur digitalen Unterschrift und Verfahren und Vorrichtung zur Verwaltung einer GeheiminformationInfo
- Publication number
- DE69942386D1 DE69942386D1 DE69942386T DE69942386T DE69942386D1 DE 69942386 D1 DE69942386 D1 DE 69942386D1 DE 69942386 T DE69942386 T DE 69942386T DE 69942386 T DE69942386 T DE 69942386T DE 69942386 D1 DE69942386 D1 DE 69942386D1
- Authority
- DE
- Germany
- Prior art keywords
- digital signature
- secret information
- managing secret
- managing
- signature method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
- H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
-
- 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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
- H04L9/3255—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures using group based signatures, e.g. ring or threshold signatures
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (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)
- Data Exchanges In Wide-Area Networks (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30993698 | 1998-10-30 | ||
JP24190599 | 1999-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69942386D1 true DE69942386D1 (de) | 2010-07-01 |
Family
ID=26535506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69942386T Expired - Lifetime DE69942386D1 (de) | 1998-10-30 | 1999-10-29 | Verfahren zur digitalen Unterschrift und Verfahren und Vorrichtung zur Verwaltung einer Geheiminformation |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0998074B1 (de) |
DE (1) | DE69942386D1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6704867B1 (en) * | 1999-03-30 | 2004-03-09 | Bitney Bowes, Inc. | Method for publishing certification information representative of selectable subsets of rights and apparatus and portable data storage media used to practice said method |
US6738899B1 (en) * | 1999-03-30 | 2004-05-18 | Pitney Bowes Inc. | Method for publishing certification information certified by a plurality of authorities and apparatus and portable data storage media used to practice said method |
JP3659178B2 (ja) * | 2001-02-22 | 2005-06-15 | 日本電信電話株式会社 | 分散ディジタル署名作成方法及び装置及び分散ディジタル署名付ディジタル文書作成方法及び装置及び分散ディジタル署名作成プログラム及び分散ディジタル署名作成プログラムを格納した記憶媒体 |
US9369285B2 (en) * | 2011-04-28 | 2016-06-14 | Qualcomm Incorporated | Social network based PKI authentication |
-
1999
- 1999-10-29 DE DE69942386T patent/DE69942386D1/de not_active Expired - Lifetime
- 1999-10-29 EP EP19990121598 patent/EP0998074B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0998074A3 (de) | 2005-03-02 |
EP0998074B1 (de) | 2010-05-19 |
EP0998074A2 (de) | 2000-05-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |