EP1569378A4
Key sharing system, shared key creation device, and shared key restoration device
Abstract
This record has no abstract on file.
Term
Term ended
Projected expiry passed 28 November 2023, 2.8 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
20 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7 Sheet 8 Sheet 9 Sheet 10 Sheet 11 Sheet 12 Sheet 13 Sheet 14 Sheet 15 Sheet 16 Sheet 17 Sheet 18 Sheet 19 Sheet 20
Every citation, both ways
| Reference | Relation | Cited during |
|---|---|---|
| HOWGRAVE-GRAHAMA N ET AL: "THE IMPACT OF DECRYPTION FAILURES ON THE SECURITY OF NTRU ENCRYPTION", ADVANCES IN CRYPTOLOGY - CRYPTO 2003. 23RD ANNUAL INTERNATIONAL CRYPTOLOGY CONFERENCE, SANTA BARBARA, CA, AUGUST 17 - 21, 2003 PROCEEDINGS, LECTURE NOTES IN COMPUTER SCIENCE ; VOL. 2729, BERLIN, SPRINGER, DE, 17 August 2003 (2003-08-17), pages 226 - 246, XP001200992, ISBN: 3-540-40674-3 | Non-patent | Search report |
| EESS: CONSORTIUM FOR EFFICIENT EMBEDDED SECURITY.: "Efficient Embedded Security Standards #1: Implementation Aspects of NTRUEncrypt and NTRUSign. Draft Version 2.0", EESS-CONSORTIUM FOR EFFICIENT EMBEDDED SECURITY, June 2003 (2003-06-01), pages 1 - 78, XP002310912, Retrieved from the Internet <URL:www.ceesstandards.org> [retrieved on 20041216] | Non-patent | Search report |
| INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, INC.: "Standard Specification for Public-Key Cryptographic Techniques Based on Hard Problems over Lattices", IEEE DRAFT STANDARD P1363.1- D2, 18 May 2001 (2001-05-18), 345 EAST 47TH STREET, NEW YORK, NY 10017 USA, pages 1 - 38, XP002312520, Retrieved from the Internet <URL:http://grouper.ieee.org/groups/1363> [retrieved on 20041216] | Non-patent | Search report |
| MENEZES, OORSCHOT, VANSTONE: "Handbook of Applied Cryptography", CRC PRESS SERIES ON DISCRETE MATHEMATICS AND ITS APPLICATIONS, 1997, BOCA RATON, FL, US, pages 506-508, 551, 552, 359 - 362, XP002310913, ISBN: 0-8493-8523-7 | Non-patent | Search report |
| See also references of WO 2004051921A1 | Non-patent | Search report |
20 members in 7 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 2002351062 | Japan | – | |
| 2002351063 | Japan | – | |
| 2002351062 | Japan | A | |
| 2002351063 | Japan | A | |
| 0315214 | Japan | W |
Members20
| Document | Office | Kind | |
|---|---|---|---|
| WO2004051920A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2004051921A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU2003302544A1 | Australia | A1 | |
| AU2003302545A1 | Australia | A1 | |
| JP2004201292A | Japan | A | |
| JP2004201293A | Japan | A | |
| US2004165726A1 | United States of America | A1 | |
| US2004174997A1 | United States of America | A1 | |
| EP1475920A1 | European Patent Office (EPO) | A1 | |
| EP1475920A4 | European Patent Office (EPO) | A4 | |
| KR20050083566A | Republic of Korea | A | |
| EP1569378A1 | European Patent Office (EPO) | A1 | |
| KR20050087815A | Republic of Korea | A | |
| CN1692598A | China | A | |
| CN1745537A | China | A | |
| EP1569378A4This record | European Patent Office (EPO) | A4 | |
| US7471792B2 | United States of America | B2 | |
| CN1745537B | China | B | |
| JP4485175B2 | Japan | B2 | |
| KR101027199B1 | Republic of Korea | B1 |
17 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application withdrawnWithdrawn18W | 18W | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION HAS BEEN WITHDRAWNSTAA | STAA | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Supplementary search report drawn up and despatchedA4 | A4 | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| 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
- 1569378
- Application
- 38123295
Titles3
- German
- SYSTEM ZUM GEMEINSAMEN BENUTZEN VON SCHLÜSSELN,ERZEUGUNGSEINRICHTUNG FÜR GEMEINSAM BENUTZTE SCHLÜSSEL UND WIEDERHERSTELLEINRICHTUNG FÜR GEMEINSAM BENUTZTE SCHLÜSSEL
- English
- KEY SHARING SYSTEM, SHARED KEY CREATION DEVICE, AND SHARED KEY RESTORATION DEVICE
- French
- SYSTEME DE PARTAGE DE CLE, DISPOSITIF DE CREATION DE CLE PARTAGEE ET DISPOSITIF DE RETABLISSEMENT DE CLE PARTAGEE
Classification
- CPC, 7
- H04L9/085
- H04L9/08
- H04L9/0869
- H04L2209/04
- H04L2209/60
- H04L9/30
- G09C1/00
- IPC, 3
- H04L9 08
- G09C1 00
- H04L9 30
Designated states5
- Contracting states, 5
- Germany
- Finland
- France
- United Kingdom
- Sweden