EP1777870A3
Method and apparatus for storing and distributing encryption keys
Abstract
A method of key distribution includes generating, by a first system device (101), key material and forwarding the key material from the first system device (101) to a second system device (107). It is determined whether a mobile station (401), for which the key material is directed, is active on the system. When the mobile station is active, the key material is forwarded to a base station (115) where the mobile station (401) is active, and the base station (115) forwards the key material to the mobile station (401).

Term
Term ended
Projected expiry passed 18 January 2022, 4.7 years ago.
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1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| WO0048363A1 | Cites | World Intellectual Property Organization (WIPO) | A | Search report | 14 |
| US5812955A | Cites | United States of America | A | Search report | 1 |
| WO9727716A1 | Cites | World Intellectual Property Organization (WIPO) | A | Search report | 1 |
| ASHA MEHROTRA ET AL: "Mobility and Security Management in the GSM System and Some Proposed Future Improvements", PROCEEDINGS OF THE IEEE, IEEE. NEW YORK, US, vol. 86, no. 7, July 1998 (1998-07-01), XP011044053, ISSN: 0018-9219 | Non-patent | – | – | Search report | – |
| "Terrestrial Trunked Radio (TETRA)", ETSI STANDARDS, EUROPEAN TELECOMMUNICATIONS STANDARDS INSTITUTE, SOPHIA-ANTIPO, FR, vol. TETRA-6, no. V211, December 2000 (2000-12-01), XP014005275, ISSN: 0000-0001 | Non-patent | – | – | Search report | – |
| MENEZES A J ET AL: "handbook of applied cryptography , PASSAGE", HANDBOOK OF APPLIED CRYPTOGRAPHY, CRC PRESS SERIES ON DISCRETE MATHEMATICES AND ITS APPLICATIONS, BOCA RATON, FL, CRC PRESS, US, 1997, pages 387,389,394 - 395,497, XP002274300, ISBN: 0-8493-8523-7 | Non-patent | – | – | Search report | – |
41 members in 10 offices
Priority claims9
| Document | Office | Kind | Date |
|---|---|---|---|
| 785849 | United States of America | – | |
| 78584901 | United States of America | A | |
| 78584901 | United States of America | A | |
| 02720815 | European Patent Office (EPO) | A | |
| 02720815 | European Patent Office (EPO) | A | |
| 02720815 | – | – | – |
| 785849 | – | – | – |
| EP20020720815 | – | – | – |
| US20010785849 | – | – | – |
Members41
| Document | Office | Kind | |
|---|---|---|---|
| WO02067486A2 | World Intellectual Property Organization (WIPO) | A2 | |
| AU2002251789A1 | Australia | A1 | |
| US2002154781A1 | United States of America | A1 | |
| WO02067486A3 | World Intellectual Property Organization (WIPO) | A3 | |
| EP1362444A2 | European Patent Office (EPO) | A2 | |
| IL157049D0 | Israel | D0 | |
| EP1362444A4 | European Patent Office (EPO) | A4 | |
| EP1362444B1 | European Patent Office (EPO) | B1 | |
| AT354898T | Austria | T | |
| ATE354898T1 | Austria | T1 | |
| DE60218289D1 | Germany | D1 | |
| EP1775876A2 | European Patent Office (EPO) | A2 | |
| EP1775877A1 | European Patent Office (EPO) | A1 | |
| EP1775878A2 | European Patent Office (EPO) | A2 | |
| EP1775905A2 | European Patent Office (EPO) | A2 | |
| EP1777870A2 | European Patent Office (EPO) | A2 | |
| EP1777870A3This record | European Patent Office (EPO) | A3 | |
| EP1775876A3 | European Patent Office (EPO) | A3 | |
| EP1775878A3 | European Patent Office (EPO) | A3 | |
| EP1775905A3 | European Patent Office (EPO) | A3 | |
| PT1362444E | Portugal | E | |
| DK1362444T3 | Denmark | T3 | |
| US7266687B2 | United States of America | B2 | |
| ES2280528T3 | Spain | T3 | |
| DE60218289T2 | Germany | T2 | |
| US2008013734A1 | United States of America | A1 | |
| US2008013735A1 | United States of America | A1 | |
| US2008013736A1 | United States of America | A1 | |
| US2008013737A1 | United States of America | A1 | |
| US2008013740A1 | United States of America | A1 | |
| IL157049A | Israel | A | |
| US7707419B2 | United States of America | B2 | |
| US7840009B2 | United States of America | B2 | |
| EP1775878B1 | European Patent Office (EPO) | B1 | |
| AT551794T | Austria | T | |
| ATE551794T1 | Austria | T1 | |
| US8817989B2 | United States of America | B2 | |
| US8964987B2 | United States of America | B2 | |
| EP1775905B1 | European Patent Office (EPO) | B1 | |
| EP1777870B1 | European Patent Office (EPO) | B1 | |
| EP1775877B1 | European Patent Office (EPO) | B1 |
84 legal events, as 8 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| 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 | |
| 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 | |
| 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 | |
| Notification of lapseLapsedST | ST | FR | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| No opposition filedOpposition26N | 26N | EP | |
| Patent ceasedCeasedPL | PL | CH | |
| 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 | |
| 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 | |
| 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 | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of representativeR082 | R082 | DE | |
| Dpma publication of mentioned ep patent grantGrantedR096 | R096 | DE | |
| European patents granted designating irelandGrantedFG4D | FG4D | IE | |
| Reference to at number (ep patent validated in austria)REF | REF | AT | |
| European patent takes effect as a national patent in ch/liEP | EP | CH | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Divisional application: reference to earlier applicationAC | AC | EP | |
| Designated contracting statesAK | AK | EP | |
| European patent grantedGrantedFG4D | FG4D | GB | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Intention to grant announcedINTG | INTG | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| Intention to grant announcedINTG | INTG | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | 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 | |
| Designation fees paidAKX | AKX | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for examination filed17P | 17P | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Designated contracting statesAK | AK | EP | |
| Divisional application: reference to earlier applicationAC | AC | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | 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
- 1777870
- Publication, DOCDB
- 1777870
- Publication, EPODOC
- EP1777870
- Application
- 6026909
- Application, DOCDB
- 06026909
- Application, EPODOC
- EP20060026909
Titles3
- German
- Verfahren und Vorrichtung zur Speicherung und Verteilung von Verschlüsselungsschlüsseln
- English
- Method and apparatus for storing and distributing encryption keys
- French
- Procédé et dispositif pour stocker et distribuer des clés de cryptage
Classification
- CPC, 12
- H04L9/083
- H04W12/02
- H04L9/0894
- H04L9/3271
- H04L63/0428
- H04L63/062
- H04L63/0853
- H04L2209/80
- H04W12/06
- H04W84/08
- H04W12/0431
- H04W12/04
- IPC, 8
- H04L9 08
- H04Q7 38
- H04L9 32
- H04L29 06
- H04W12 00
- H04W12 02
- H04W12 06
- H04W84 08
Designated states1
- Contracting states, 1
- Türkiye