EP1747638A4
Systems and methods to securely generate shared keys
Abstract
This record has no abstract on file.
Term
Term ended
Projected expiry passed 2 May 2025, 1.4 years ago.
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10 sheets
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Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| US5515441A | Cites | United States of America | I | Search report | 1-20 |
| US5953420A | Cites | United States of America | I | Search report | 1-20 |
| ZHANG M: "Analysis of the SPEKE Password-Authenticated Key Exchange Protocol", IEEE COMMUNICATIONS LETTERS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US LNKD- DOI:10.1109/LCOMM.2003.822506, vol. 8, no. 1, 1 January 2004 (2004-01-01), pages 63 - 65, XP011105846, ISSN: 1089-7798 | Non-patent | – | – | Search report | – |
| BOYKO V ET AL: "PROVABLY SECURE PASSWORD-AUTHENTICATED KEY EXCHANGE USING DIFFIE-HELLMAN", ADVANCES IN CRYPTOLOGY - EUROCRYPT 2000. INTERNATIONAL CONF. ON THE THEORY AND APPLICATION OF CRYPTOGRAPHIC TECHNIQUES. BRUGES, BE, MAY 14 20000514 SPRINGER, BERLIN, DE, vol. VOL. 1807, 14 May 2000 (2000-05-14), pages 156 - 171, XP000896058, ISBN: 978-3-540-67517-4 | Non-patent | – | – | Search report | – |
| See also references of WO 2005107141A1 | Non-patent | – | – | Search report | – |
46 members in 12 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 566790P | United States of America | – | |
| 56679004 | United States of America | P | |
| 2005000676 | Canada | W |
Members46
| Document | Office | Kind | |
|---|---|---|---|
| AU2005228061A1 | Australia | A1 | |
| CA2561796A1 | Canada | A1 | |
| WO2005096542A1 | World Intellectual Property Organization (WIPO) | A1 | |
| US2005232428A1 | United States of America | A1 | |
| CA2564909A1 | Canada | A1 | |
| US2005251680A1 | United States of America | A1 | |
| WO2005107141A1 | World Intellectual Property Organization (WIPO) | A1 | |
| KR20060132026A | Republic of Korea | A | |
| EP1735945A1 | European Patent Office (EPO) | A1 | |
| EP1747638A1 | European Patent Office (EPO) | A1 | |
| HK1095950A1 | Hong Kong, China | A1 | |
| CN1969501A | China | A | |
| EP1735945A4 | European Patent Office (EPO) | A4 | |
| CN101023622A | China | A | |
| BRPI0509538A | Brazil | A | |
| JP2007531422A | Japan | A | |
| EP1735945B1 | European Patent Office (EPO) | B1 | |
| AT438973T | Austria | T | |
| ATE438973T1 | Austria | T1 | |
| DE602005015831D1 | Germany | D1 | |
| AU2009248475A1 | Australia | A1 | |
| US7646872B2 | United States of America | B2 | |
| US2010104102A1 | United States of America | A1 | |
| CN1969501B | China | B | |
| EP1747638A4This record | European Patent Office (EPO) | A4 | |
| CN101023622B | China | B | |
| US7885411B2 | United States of America | B2 | |
| US7894605B2 | United States of America | B2 | |
| US2011103588A1 | United States of America | A1 | |
| US2011126013A1 | United States of America | A1 | |
| JP4701238B2 | Japan | B2 | |
| CA2564909C | Canada | C | |
| US8090107B2 | United States of America | B2 | |
| US2012063599A1 | United States of America | A1 | |
| CA2561796C | Canada | C | |
| AU2012202300A1 | Australia | A1 | |
| AU2009248475B2 | Australia | B2 | |
| US8218773B2 | United States of America | B2 | |
| AU2012202300B2 | Australia | B2 | |
| US8238558B2 | United States of America | B2 | |
| US2012257746A1 | United States of America | A1 | |
| US2012294440A1 | United States of America | A1 | |
| US8615086B2 | United States of America | B2 | |
| US8693695B2 | United States of America | B2 | |
| EP1747638B1 | European Patent Office (EPO) | B1 | |
| BRPI0509538B1 | Brazil | B1 |
71 legal events, as 10 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Patent expired after termination of 20 yearsExpiredPE20 | PE20 | GB | |
| Expiry of rightR071 | R071 | DE | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)REGISTERED BETWEEN 20240530 AND 20240605732E | 732E | GB | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of representativeR082 | R082 | DE | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Fee paymentPLFP | PLFP | FR | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Patent lapsedLapsedMM4A | MM4A | IE | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Patent ceasedCeasedPL | PL | CH | |
| Standard patents granted in hong kongGrantedGR | GR | HK | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097 | R097 | DE | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Fee paymentPLFP | PLFP | FR | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Deletion acc. to par. 5 (withdrawal of the translation of the ep patent)MK05 | MK05 | AT | |
| Patent invalid in the netherlands as no translation has been filedMP | MP | NL | |
| Invalidated european patentMG4D | MG4D | LT | |
| Reference to at number (ep patent validated in austria)REF | REF | AT | |
| Dpma publication of mentioned ep patent grantGrantedR096 | R096 | DE | |
| European patents granted designating irelandGrantedFG4D | FG4D | IE | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| European patent takes effect as a national patent in ch/liEP | EP | CH | |
| European patent grantedGrantedFG4D | FG4D | GB | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Intention to grant announcedINTG | INTG | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| Intention to grant announcedINTG | INTG | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
| Supplementary search report drawn up and despatchedA4 | A4 | EP | |
| Requests to designate patent in hong kongDE | DE | HK | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 1747638
- Application
- 57425399
Titles3
- German
- SYSTEME UND VERFAHREN ZUM SICHEREN ERZEUGEN GEMEINSAM BENUTZTER SCHLÜSSEL
- English
- SYSTEMS AND METHODS TO SECURELY GENERATE SHARED KEYS
- French
- SYSTEMES ET PROCEDES DE GENERATION SECURISEE DE CLES PARTAGEES
Classification
- CPC, 4
- H04L9/3066
- H04L9/0844
- H04L9/0891
- H04L2209/80
- IPC, 3
- H04L9 30
- H04L9 08
- H04L9 14
Designated states36
- Contracting states, 30
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Lithuania
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Poland
and 6 moreShow fewer
- Portugal
- Romania
- Sweden
- Slovenia
- Slovakia
- Türkiye
- Extension states, 6
- Albania
- Bosnia and Herzegovina
- Croatia
- Latvia
- North Macedonia
- Yugoslavia, later Serbia and Montenegro (until 2006)