EP1540875A4
Certificate-based encryption and public key infrastructure
Abstract
This record has no abstract on file.
Term
Term ended
Projected expiry passed 28 August 2023, 3.1 years ago.
- Priority
- Filed
- Published
- Projected expiry
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31 sheets
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Every citation, both ways
| Reference | Relation | Cited during |
|---|---|---|
| BONEH D ET AL: "IDENTITY-BASED ENCRYPTION FROM THE WEIL PAIRING", ADVANCES IN CRYPTOLOGY. CRYPTO 2001. 21ST ANNUAL INTERNATIONAL CRYPTOLOGY CONFERENCE, SANTA BARBARA, CA, AUG. 19 - 23, 2001. PROCEEDINGS; [LECTURE NOTES IN COMPUTER SCIENCE ; VOL. 2139], BERLIN : SPRINGER.; DE, 19 August 2001 (2001-08-19), pages 213 - 229, XP000988703, ISBN: 978-3-540-42456-7 | Non-patent | Search report |
| SMART N P: "Identity-based authenticated key agreement protocol based on Weil pairing", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 38, no. 13, 20 June 2002 (2002-06-20), pages 630 - 632, XP006018324, ISSN: 0013-5194, DOI: 10.1049/EL:20020387 | Non-patent | Search report |
| BROWN D R L ET AL: "Provably secure implicit certificate schemes", FINANCIAL CRYPTOGRAPHY : 5TH INTERNATIONAL CONFERENCE ; PROCEEDINGS / FC 2001, GRAND CAYMAN, BRITISH WEST INDIES, FEBRUARY 19 - 22, 2001 (IN: LECTURES NOTES IN COMPUTER SCIENCE); [LECTURE NOTES IN COMPUTER SCIENCE ; 2339], SPRINGER, BERLIN, DE, vol. 2339, 1 January 2002 (2002-01-01), pages 156 - 165, XP002524293, ISBN: 978-3-540-44079-6 | Non-patent | Search report |
| CHEN L ET AL: "CERTIFICATION OF PUBLIC KEYS WITHIN AN IDENTITY BASED SYSTEM", PARALLEL AND DISTRIBUTED PROCESSING AND APPLICATIONS: SECOND INTERNATIONAL SYMPOSIUM, ISPA 2004 PROCEEDINGS, HONG KONG, CHINA, DECEMBER 13 - 15, 2004 (IN: LECTURE NOTES IN COMPUTER SCIENCES), SPRINGER, DE, vol. 2433, 30 September 2002 (2002-09-30), pages 322 - 333, XP001170398, ISBN: 978-3-540-24128-7, DOI: 10.1007/3-540-45811-5_25 | Non-patent | Search report |
| CHEN L ET AL: "Applications of multiple trust authorities in pairing based cryptosystems", PARALLEL AND DISTRIBUTED PROCESSING AND APPLICATIONS: SECOND INTERNATIONAL SYMPOSIUM, ISPA 2004 PROCEEDINGS, HONG KONG, CHINA, DECEMBER 13 - 15, 2004 (IN: LECTURE NOTES IN COMPUTER SCIENCES), SPRINGER, DE, vol. 2437, 1 October 2002 (2002-10-01), pages 260 - 275, XP002336246, ISBN: 978-3-540-24128-7, DOI: 10.1007/3-540-45831-X_18 | Non-patent | Search report |
| GENTRY C ET AL: "Hierarchical ID-Based Cryptography", PARALLEL AND DISTRIBUTED PROCESSING AND APPLICATIONS: SECOND INTERNATIONAL SYMPOSIUM, ISPA 2004 PROCEEDINGS, HONG KONG, CHINA, DECEMBER 13 - 15, 2004 (IN: LECTURE NOTES IN COMPUTER SCIENCES), SPRINGER, DE, vol. 2501, 1 January 2002 (2002-01-01), pages 548 - 566, XP002396667, ISBN: 978-3-540-24128-7, DOI: 10.1007/3-540-36178-2_34 | Non-patent | Search report |
| See also references of WO 2004021638A1 | Non-patent | Search report |
17 members in 6 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 406721P | United States of America | – | |
| 40672102 | United States of America | P | |
| 412221P | United States of America | – | |
| 41222102 | United States of America | P | |
| 0326834 | United States of America | W |
Members17
| Document | Office | Kind | |
|---|---|---|---|
| WO2004021638A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU2003262908A1 | Australia | A1 | |
| EP1540875A1 | European Patent Office (EPO) | A1 | |
| CN1679271A | China | A | |
| US2005246533A1 | United States of America | A1 | |
| JP2005537711A | Japan | A | |
| US2009034740A1 | United States of America | A1 | |
| US2009041233A1 | United States of America | A1 | |
| US7657748B2 | United States of America | B2 | |
| US2010082986A1 | United States of America | A1 | |
| US7751558B2 | United States of America | B2 | |
| JP2010161826A | Japan | A | |
| US7796751B2 | United States of America | B2 | |
| EP1540875A4This record | European Patent Office (EPO) | A4 | |
| US8074073B2 | United States of America | B2 | |
| JP2012256083A | Japan | A | |
| JP5130318B2 | Japan | B2 |
12 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application deemed to be withdrawn (corrected)WithdrawnR18D | R18D | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | |
| Application deemed to be withdrawnWithdrawn18D | 18D | |
| First examination report despatched17Q | 17Q | |
| Supplementary search report drawn up and despatchedA4 | A4 | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | |
| Request for extension of the european patent (deleted)DAX | DAX | |
| Designated contracting states (corrected)RBV | RBV | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 1540875
- Application
- 37918463
Titles3
- German
- INFRASTRUKTUR MIT AUF ZERTIFIKAT BASIERENDER VERSCHL SSELUNG UND FFENTLICHEM SCHL SSEL
- English
- CERTIFICATE-BASED ENCRYPTION AND PUBLIC KEY INFRASTRUCTURE
- French
- CRYPTAGE SUR LA BASE DE CERTIFICATS ET INFRASTRUCTURE A CLE PUBLIQUE
Classification
- CPC, 4
- H04L9/0847
- H04L9/0836
- H04L9/3073
- H04L9/3265
- IPC, 4
- H04L9 00
- H04L9 08
- H04L9 30
- H04L9 32
Designated states2
- Contracting states, 2
- Germany
- United Kingdom