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Extract from the Register of European Patents

EP About this file: EP2677682

EP2677682 - KEY MANAGEMENT SYSTEM [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.02.2018
Database last updated on 19.10.2024
FormerThe patent has been granted
Status updated on  17.03.2017
FormerGrant of patent is intended
Status updated on  31.01.2017
Most recent event   Tooltip17.07.2020Lapse of the patent in a contracting state
New state(s): AL		published on 19.08.2020  [2020/34]
Applicant(s)For all designated states
Kabushiki Kaisha Toshiba
1-1 Shibaura 1-chome Minato-ku
Tokyo 105-8001 / JP
For all designated states
Toshiba Solutions Corporation
1-1 Shibaura 1-chome
Minato-ku
Tokyo 105-6691 / JP
[2017/13]
Former [2013/52]For all designated states
Kabushiki Kaisha Toshiba, Inc.
1-1 Shibaura 1-chome
Minato-ku
Tokyo 105-8001 / JP
For all designated states
Toshiba Solutions Corporation
1-1 Shibaura 1-chome Minato-ku
Tokyo 105-6691 / JP
Inventor(s)01 / YOSHIDA, Takuya
c/o Intellectual Property Department
Technology Planning Division
TOSHIBA SOLUTIONS CORPORATION
1-1, Shibaura 1-chome, Minato-ku
Tokyo 105-6691 / JP
02 / FUJII, Yoshihiro
c/o Intellectual Property Department
Technology Planning Division
TOSHIBA SOLUTIONS CORPORATION
1-1, Shibaura 1-chome, Minato-ku
Tokyo 105-6691 / JP
 [2013/52]
Representative(s)Hoffmann Eitle
Patent- und Rechtsanwälte PartmbB
Arabellastraße 30
81925 München / DE
[2017/16]
Former [2013/52]HOFFMANN EITLE
Patent- und Rechtsanwälte
Arabellastrasse 4
81925 München / DE
Application number, filing date12746655.515.02.2012
[2017/16]
WO2012JP53546
Priority number, dateJP2011003207817.02.2011         Original published format: JP 2011032078
[2013/52]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2012111713
Date:23.08.2012
Language:JA
[2012/34]
Type: A1 Application with search report 
No.:EP2677682
Date:25.12.2013
Language:EN
[2013/52]
Type: B1 Patent specification 
No.:EP2677682
Date:19.04.2017
Language:EN
[2017/16]
Search report(s)International search report - published on:JP23.08.2012
(Supplementary) European search report - dispatched on:EP07.07.2014
ClassificationIPC:H04L9/08, H04L9/14, G06F21/62, H04L29/06
[2014/32]
CPC:
H04L9/0861 (EP,US); G06F21/602 (EP,US); G06F21/62 (EP,US);
H04L63/06 (EP,US); H04L9/0825 (EP,US); H04L9/0827 (EP,US);
H04L9/14 (EP,US); H04L2209/76 (EP,US) (-)
Former IPC [2013/52]H04L9/08, H04L9/14
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2013/52]
Extension statesBANot yet paid
MENot yet paid
TitleGerman:SCHLÜSSELVERWALTUNGSSYSTEM[2013/52]
English:KEY MANAGEMENT SYSTEM[2013/52]
French:SYSTÈME DE GESTION DE CLÉS[2013/52]
Entry into regional phase14.08.2013Translation filed 
14.08.2013National basic fee paid 
14.08.2013Search fee paid 
14.08.2013Designation fee(s) paid 
14.08.2013Examination fee paid 
Examination procedure14.08.2013Examination requested  [2013/52]
23.01.2015Amendment by applicant (claims and/or description)
07.10.2016Communication of intention to grant the patent
25.01.2017Fee for grant paid
25.01.2017Fee for publishing/printing paid
25.01.2017Receipt of the translation of the claim(s)
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  07.10.2016
Opposition(s)22.01.2018No opposition filed within time limit [2018/13]
Fees paidRenewal fee
18.02.2014Renewal fee patent year 03
11.02.2015Renewal fee patent year 04
10.02.2016Renewal fee patent year 05
10.02.2017Renewal fee patent year 06
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipHU15.02.2012
AL19.04.2017
AT19.04.2017
CY19.04.2017
CZ19.04.2017
DK19.04.2017
EE19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
IT19.04.2017
LT19.04.2017
LV19.04.2017
MC19.04.2017
MK19.04.2017
NL19.04.2017
PL19.04.2017
PT19.04.2017
RO19.04.2017
RS19.04.2017
SE19.04.2017
SI19.04.2017
SK19.04.2017
SM19.04.2017
TR19.04.2017
BG19.07.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
[2020/34]
Former [2020/31]HU15.02.2012
AT19.04.2017
CY19.04.2017
CZ19.04.2017
DK19.04.2017
EE19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
IT19.04.2017
LT19.04.2017
LV19.04.2017
MC19.04.2017
MK19.04.2017
NL19.04.2017
PL19.04.2017
PT19.04.2017
RO19.04.2017
RS19.04.2017
SE19.04.2017
SI19.04.2017
SK19.04.2017
SM19.04.2017
TR19.04.2017
BG19.07.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
Former [2020/27]HU15.02.2012
AT19.04.2017
CZ19.04.2017
DK19.04.2017
EE19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
IT19.04.2017
LT19.04.2017
LV19.04.2017
MC19.04.2017
NL19.04.2017
PL19.04.2017
PT19.04.2017
RO19.04.2017
RS19.04.2017
SE19.04.2017
SI19.04.2017
SK19.04.2017
SM19.04.2017
TR19.04.2017
BG19.07.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
Former [2020/15]AT19.04.2017
CZ19.04.2017
DK19.04.2017
EE19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
IT19.04.2017
LT19.04.2017
LV19.04.2017
MC19.04.2017
NL19.04.2017
PL19.04.2017
RO19.04.2017
RS19.04.2017
SE19.04.2017
SI19.04.2017
SK19.04.2017
SM19.04.2017
TR19.04.2017
BG19.07.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
Former [2018/44]AT19.04.2017
CZ19.04.2017
DK19.04.2017
EE19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
IT19.04.2017
LT19.04.2017
LV19.04.2017
MC19.04.2017
NL19.04.2017
PL19.04.2017
RO19.04.2017
RS19.04.2017
SE19.04.2017
SI19.04.2017
SK19.04.2017
SM19.04.2017
BG19.07.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
Former [2018/25]AT19.04.2017
CZ19.04.2017
DK19.04.2017
EE19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
IT19.04.2017
LT19.04.2017
LV19.04.2017
NL19.04.2017
PL19.04.2017
RO19.04.2017
RS19.04.2017
SE19.04.2017
SI19.04.2017
SK19.04.2017
SM19.04.2017
BG19.07.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
Former [2018/11]AT19.04.2017
CZ19.04.2017
DK19.04.2017
EE19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
IT19.04.2017
LT19.04.2017
LV19.04.2017
NL19.04.2017
PL19.04.2017
RO19.04.2017
RS19.04.2017
SE19.04.2017
SK19.04.2017
SM19.04.2017
BG19.07.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
Former [2018/10]AT19.04.2017
CZ19.04.2017
DK19.04.2017
EE19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
LT19.04.2017
LV19.04.2017
NL19.04.2017
PL19.04.2017
RO19.04.2017
RS19.04.2017
SE19.04.2017
SK19.04.2017
BG19.07.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
Former [2018/09]AT19.04.2017
DK19.04.2017
EE19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
LT19.04.2017
LV19.04.2017
NL19.04.2017
PL19.04.2017
RS19.04.2017
SE19.04.2017
BG19.07.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
Former [2017/50]AT19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
LT19.04.2017
LV19.04.2017
NL19.04.2017
PL19.04.2017
RS19.04.2017
SE19.04.2017
BG19.07.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
Former [2017/49]AT19.04.2017
ES19.04.2017
FI19.04.2017
HR19.04.2017
LT19.04.2017
NL19.04.2017
NO19.07.2017
GR20.07.2017
IS19.08.2017
Former [2017/48]NL19.04.2017
Documents cited:Search[A]EP0833241  (MITSUBISHI CORP [JP]) [A] 1-3 * paragraph [0021] - paragraph [0023] * * paragraph [0093] - paragraph [0094] ** paragraph [0122] - paragraph [0124] *;
 [A]WO0052558  (STORAGE TECHNOLOGY CORP [US]) [A] 1-3 * page 2 - page 5 * * page 16 - page 20 *;
 [X]US2008059787  (HOHENBERGER SUSAN R [US], et al) [X] 1-3 * abstract * * paragraph [0011] - paragraph [0014] * * paragraph [0033] - paragraph [0039] *;
 [X]  - GIUSEPPE ATENIESE ET AL, "Improved Proxy Re-Encryption Schemes with Applications to Secure Distributed Storage", INTERNATIONAL ASSOCIATION FOR CRYPTOLOGIC RESEARCH,, (20060111), vol. 20060111:153421, pages 1 - 25, XP061001560 [X] 1-3 * pages 3,16 *

DOI:   http://dx.doi.org/10.1145/1127345.1127346
International search[A]  - GIUSEPPE ATENIESE ET AL., "Improved proxy re-encryption schemes with applications to secure distributed storage", (2005), URL: http://citeseer.ist.psu.edu/viewdoc/summary?doi=10.1.1.100.7790, (20120314), XP061001560

DOI:   http://dx.doi.org/10.1145/1127345.1127346
 [A]  - BENOIT LIBERT ET AL., "Unidirectional Chosen-Ciphertext Secure Proxy Re-Encryption", (2008), URL: http://hal.inria.fr/inria-00339530/en/, (20120314), XP047030395

DOI:   http://dx.doi.org/10.1007/978-3-540-78440-1_21
 [A]  - BENOIT LIBERT ET AL., "Tracing Malicious Proxies in Proxy Re-Encryption", (2008), URL: http://hal.inria.fr/inria-00327353/, (20120314), XP019103356
 [A]  - JUN SHAO ET AL., "CCA-Secure Proxy Re-Encryption without Pairings", (200903), URL: http://www.iacr.org/archive/pkc2009/pkc2009.html, (20120314), XP047030447

DOI:   http://dx.doi.org/10.1007/978-3-642-00468-1_20
 [A]  - JIAN WENG ET AL., "Conditional proxy re-encryption secure against chosen-ciphertext attack", ASIACCS '09 PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON INFORMATION, COMPUTER, AND COMMUNICATIONS SECURITY, (200903), pages 322 - 332, XP058026510

DOI:   http://dx.doi.org/10.1145/1533057.1533100
 [A]  - IBRAIMI, LUAN ET AL., "An encryption scheme for a secure policy updating", PROCEEDINGS OF THE 2010 INTERNATIONAL CONFERENCE ON SECURITY AND CRYPTOGRAPHY, IEEE, (201007), pages 1 - 10, XP031936449
by applicant   - DIFFIE-HELLMAN KEY AGREEMENT METHOD, (20110210), URL: http://www.ietf.org/rfc/rfc2631.txt
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.