EP2225697A1 - Generation et utilisation d'une cle biometrique. - Google Patents
Generation et utilisation d'une cle biometrique.Info
- Publication number
- EP2225697A1 EP2225697A1 EP08867083A EP08867083A EP2225697A1 EP 2225697 A1 EP2225697 A1 EP 2225697A1 EP 08867083 A EP08867083 A EP 08867083A EP 08867083 A EP08867083 A EP 08867083A EP 2225697 A1 EP2225697 A1 EP 2225697A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- secret
- biometric data
- cryptographic key
- control
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0866—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving user or device identifiers, e.g. serial number, physical or biometrical information, DNA, hand-signature or measurable physical characteristics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
- H04L9/3255—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures using group based signatures, e.g. ring or threshold signatures
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
Definitions
- the present invention relates to the generation of cryptographic keys. It is important that the secret keys used in cryptographic systems have characteristics that make it possible to preserve their secret nature.
- the present invention aims to provide another type of generation of such secret keys.
- a first aspect of the present invention provides a control method in a control system comprising a control device adapted to, on the one hand, receive a signal indicating a first biometric data, and, on the other hand, obtain a second data item. biometric captured; said method comprising the following steps, at the level of the control device:
- the signal that indicates the first biometric data may come from a storage device, on which is the first biometric data.
- a person provided with such a storage device, on which is stored the first biometric data can be controlled according to a control method according to an embodiment of the present invention.
- the control device may be located at the storage device or may be located at a sensor for sensing the second biometric data.
- it is a complete secret cryptographic key that is generated in the step
- the cryptographic system may further comprise a database storing at least said secret cryptographic key, said method comprising then in addition the following steps at the level of the control device: to transmit to it a control request based on the secret cryptographic key; and
- IeI receive a control response indicating whether the secret cryptographic key is stored in the database.
- identity check may correspond to either an authentication or an identification of the controlled person.
- the database may contain only biometric data in hash form.
- Such a database and therefore such a control system, provides a very high level of biometric data privacy.
- the control is based on biometric data while only implementing cryptographic mechanisms in the end when comparing the chopped biometric data received from the control device and one of the biometric data stored in the database in the form of a hash of data.
- an advantageous application of the present invention to the field of group signing is provided.
- it is planned to associate a group secret with members of a group, each member being able to perform a group signature; said method further comprising the following steps at the control device:
- IWI sign the message on the basis of a secret cryptographic key comprising, on the one hand, the secret cryptographic key portion generated in the step Here and, on the other hand, another secret cryptographic key portion that verifies the following equation: ⁇ where K is the secret cryptographic key part generated in the step Here; where there is the group secret; and where gi is a public parameter of the control system; / iii / transmit, in response to the step IM, the signed message. Then, in a subsequent step HvI, a response can be received indicating whether the signature is a valid signature of the group.
- the control system may include a registration server; said control method further comprising the following steps at the control device, before the step IM:
- the person who wishes to sign on behalf of a group is first to control to decide if it belongs to this group.
- the storage device of this person receives the first biometric data from the control device, making it possible to generate a first secret key portion, and a second part of secret key from the registration server. Implicitly disposing (since the storage device has the biometric data for generating the first secret key portion) then the complete cryptographic key formed of the first and second secret key portions, the person provided with its storage device is able to prove its membership in the signature group according to an embodiment of the present invention.
- a second aspect of the present invention provides a control method in a control system comprising a storage device adapted to store a first biometric data, and a recording server; wherein a group secret is associated with members of a group, each of the members being able to perform a group signature; said method comprising the following steps, at the registration server:
- the registration server is adapted to generate from a first secret key portion and a group secret, a second secret key portion, the first and second secret key portions forming a suitable secret cryptographic key. for use in a group signature mechanism according to an embodiment of the present invention.
- a third aspect of the present invention provides a control system adapted to implement a control method according to the first aspect of the present invention.
- Figure 1 illustrates at least a portion of a control system according to an embodiment of the present invention
- Figure 2 illustrates the main steps of a control method according to an embodiment of the present invention
- FIG. 3 illustrates an identification and / or authentication system according to one embodiment of the present invention
- - Figures 4 and 5 illustrate a group signature system according to an embodiment of the present invention
- Figures 6 and 7 illustrate a control system according to two embodiments of the present invention.
- Figure 1 illustrates at least part of a cryptographic system according to an embodiment of the present invention.
- Such a system comprises a control device 10 adapted both for reading at least a first biometric data w which is previously stored on a storage device 11 and for capturing a second biometric data w '.
- a control device 10 adapted both for reading at least a first biometric data w which is previously stored on a storage device 11 and for capturing a second biometric data w '.
- This device comprises for this purpose an interface unit 101 for receiving a signal from the storage device 11 indicating the stored biometric data w, and a sensor 102 of biometric data. It can be expected that this sensor is further adapted to determine if the user is alive and avoid fraud carried out on deceased persons or virtual.
- FIG. 2 illustrates the main steps of a control method according to an embodiment of the present invention, implemented at the level of the control device 10.
- a storage device 11 on which the first biometric data item w is stored provision is made for the use of a storage device 11 on which the first biometric data item w is stored.
- this storage device is a USB key (for 'Universal Serial Bus') or a smart card, or else in the form of a simple paper print (for example in the form of barcodes).
- This control device 10 is then adapted to recover this first biometric data w from the storage device 11. It is also adapted to capture a second biometric data w '.
- the control device makes a comparison between these first and second biometric data.
- This comparison aims to determine whether his first and second biometric data are from the same person.
- One can at this stage use one of the known methods of comparison between two biometric data, such as that described in the document 'How iris recognition works?' J. Daugman, "High Confidence Visual Recognition of Persons by a Test of Statistical Independence", 1993, IEEE Trans. on Pattern Analysis and Machine Intelligence, or in Handbook of Fingerprint Recognition by D, Maltoni, D. Maio, AK Jain, S. Prabhakar, or in the document 'Biometrics Authentication: Technologies, Systems, Evaluations and Legal' Issues by J. Wayman, A. Jain, D. Maltoni and D. Maio.
- control device 10 can then decide, when the comparison has made it possible to determine the fact that these first and second biometric data come from the same person, that these first and second biometric data correspond to a step 22. This case then, the control device 10 generates, in a step 23, a cryptographic key K by applying a cryptographic function H, which may for example be a hash function, the first biometric data w. The following equation is verified:
- Figure 3 illustrates such an application of the present invention in a person identity control system.
- Such an identification and / or authentication system comprises the control device 10 and than a database 31 with which it is able to communicate.
- This communication between the control device 10 and the database 31 can be either a direct communication or a communication via a database management device, which is not illustrated, but which can be in direct interface with the control device by receiving its requests and transmitting responses, after consulting the database, and in direct interface with the database 31 to view the data stored therein.
- This enrollment phase is advantageously carried out confidentially.
- the database 31 contains chopped biometric data which respectively correspond to the biometric data w stored on storage devices according to one embodiment of the present invention.
- the chopped biometric data stored in the database is obtained by applying a cryptographic hash function H to the biometric data w stored on the storage devices 11.
- the control device 10 compares the first biometric data item w which is stored on this storage device 11 with a second biometric data w 'that he has just captured on the person being controlled via his sensor 102.
- This key K is then sent, or more generally used in a protocol making it possible to request a search relating to authentication or identification, preferably in a secure manner, to the database 31 in order to find out whether one of the data stored in this database corresponds to it.
- the step of searching for correspondence between the stored chopped biometric data and the data received from the control device is not tainted by the problems related to biometrics and more particularly by the fact that two biometric data captures on one same person can be substantially different. This characteristic of biometry greatly complicates, especially in a large database, certain comparisons between biometric data in a context of identification or biometric authentication of a person.
- the authentication and / or identification step therefore advantageously corresponds to a cryptographic and non-biometric step.
- Such a method therefore makes it possible to use biometric data that allows a control providing a high level of security, while performing an identity check in the cryptographic domain, and thus by avoiding the problems relating to such a purely biometric control.
- the database contains only biometric data in cryptographically encrypted form, and thus does not allow an attacking potential to retrieve data relating to a person. By doing so, we preserve the privacy of individuals.
- biometric control makes it possible to combine the security level of a biometric control with the cryptographic methods of identity control and authentication.
- the key K corresponding to H (w), is easily renewable, since two different acquisitions provide separate biometric data, and revocable, in the case where a fraudulent use would be detected.
- Fig. 4 illustrates a control system according to an embodiment of the present invention in an application to the domain of the group signature.
- the value K obtained from a person's biometric data constitutes only part of a secret key of a member of the signature group in the control system for group signing.
- Shacham such as the one described in the document 'Group signatures with verifier-local revocation' by D. Boneh and H. Shacham, ACM conference on
- the control system adapted for a group signature method as illustrated in FIG. 4 comprises a control device 10, a control server 42, a registration server 44, a key management device 43 which holds a secret y associated with the members of a system signature group and a storage device 11.
- the registration server is adapted to generate the second secret key portion and the control server is adapted to perform a check.
- a group signing method allows a group member to anonymously sign a message on behalf of the group, and can then prove membership in a group.
- the K value derived from biometric data obtained according to an embodiment of the present invention can then advantageously be a part of the private key used during a group signature method. In this application, it is sought to determine whether the user associated with the part K of the private key is a member of the signature group or not.
- membership in a group does not require management of a database. This feature is possible through the use of a group secret associated with members of the group.
- Fig. 5 illustrates a method of controlling membership of a signature group according to an embodiment of the present invention.
- the recording server 44 Once the recording server 44 has determined this value A, it transmits it to the storage device 11 in a message 51. This transmission can be done via the control device 10 which then allows it to be stored. secret key part A on the storage device
- This value A is stored on the storage device 11 of the user.
- this storage device stores the data (w, A) associated with the user.
- the biometric data w is stored in the storage device 11 in a form transformed by the cryptographic function.
- the secret cryptographic key complete here is the pair (H (w), A).
- H (w), A the secret cryptographic key
- the user and his storage device 11 containing the secret key (K, A) is responsible for proving to the control server 42 that he knows a key verifying equation (1) in order to be recognized. as a member of the group.
- a control phase II the user presents his storage device 11 to the control device 10.
- the control device 10 captures a second biometric data w 'relating to this user. First, he attempts to compare the first and second biometric data with each other to determine if they are from the same person.
- control device decides that these first and second data are from the same person
- the following steps of the group membership control method can be performed according to one embodiment of the present invention.
- Figure 5 illustrates an enrollment phase I and a control phase II.
- the control device receives a message 501 indicating a message M (or 'challenge' in English) from the control server 42.
- the user signs the message M received from the control server based in particular on his private key (K 1 A).
- K 1 A his private key
- Gi a first order multiplicative cyclic group p
- G 2 a multiplicative group of order corresponding to a power of p
- ⁇ is a homomorphism from the set G 2 to the set G 1 ;
- G 2 is an element of order p of Gi and gi is a generating element of G 1 so that the following equation is satisfied:
- HO is another hash function that maps the set ⁇ 0,1 ⁇ * to the set G 2 2
- the private key (K, A) of the considered user is such that A is an element of Gi and K is an element of Z P.
- R 2 e (T 2 , g 2 ) r * .e (v, wy ra .e (v, g 2 y r>
- R 1 T " k u ⁇ ⁇ *
- c H (gpk, M, r, T 1 , T 2 , Ri, R 2 , R 3 )
- control server calculates:
- control server accepts the signature.
- Fig. 6 illustrates a control system comprising:
- a storage device 11 on which is stored a first biometric data item w; a biometric data sensor 102 adapted to pick up a second biometric data item;
- a reader 101 of a biometric data storage device comprising:
- a decision unit 103 adapted to decide whether the first and second biometric data correspond on the basis of a comparison between the first and the second biometric data
- a secret cryptographic key generation unit 104 adapted to generate at least one secret cryptographic key portion K by application of a cryptographic function H to the first biometric data item, when the decision unit has decided that the first w and second w ! biometric data correspond.
- No limitation is attached to the relative architecture of the sensor, reader, control device and storage device.
- the sensor and the reader are separate from the storage device and the control device, and that the storage device is co-located with the control device.
- the storage device is a device of the Match on Card (MoC) type.
- This control system may furthermore comprise:
- the control device 10 then further comprises an interface unit adapted to request from the database a control of the secret cryptographic key generated by the generation unit 104.
- FIG. 7 illustrates another control system further comprising a control server 42 adapted to control a membership of a group of members that can perform a group signature, a group secret being associated with this group, the control device 10 further comprising:
- an interface unit 105 with the control server 42 adapted to receive a message M 501; and send a signed message;
- a signature unit 106 adapted to generate a signed message from a received message M on the basis of a secret cryptographic key comprising, on the one hand, the secret cryptographic key portion K generated by the control device and on the other hand, another secret cryptographic key portion A generated by the registration server 44 based on the group secret and said secret cryptographic key portion.
- the registration server 44 may include:
- A gi 1 / k + ⁇
- K is the secret cryptographic key portion generated by the generation unit 103 of the control device; where there is the group secret; and where gi is a public parameter of the control system; an interface unit 422 adapted to transmit said other secret cryptographic key portion to the storage device 11.
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Storage Device Security (AREA)
- Collating Specific Patterns (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0760311A FR2925732B1 (fr) | 2007-12-21 | 2007-12-21 | Generation et utilisation d'une cle biometrique |
| PCT/EP2008/068122 WO2009083518A1 (fr) | 2007-12-21 | 2008-12-19 | Generation et utilisation d'une cle biometrique. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2225697A1 true EP2225697A1 (fr) | 2010-09-08 |
Family
ID=39639119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08867083A Withdrawn EP2225697A1 (fr) | 2007-12-21 | 2008-12-19 | Generation et utilisation d'une cle biometrique. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8670562B2 (fr) |
| EP (1) | EP2225697A1 (fr) |
| JP (2) | JP5442633B2 (fr) |
| FR (1) | FR2925732B1 (fr) |
| WO (1) | WO2009083518A1 (fr) |
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| US8364646B2 (en) | 2006-03-03 | 2013-01-29 | Eyelock, Inc. | Scalable searching of biometric databases using dynamic selection of data subsets |
| US8604901B2 (en) | 2006-06-27 | 2013-12-10 | Eyelock, Inc. | Ensuring the provenance of passengers at a transportation facility |
| EP2076871A4 (fr) | 2006-09-22 | 2015-09-16 | Eyelock Inc | Dispositif compact et procédé d'acquisition de données biométriques |
| WO2008042879A1 (fr) | 2006-10-02 | 2008-04-10 | Global Rainmakers, Inc. | Système et procédé de transaction financière biométrique résistant à la fraude |
| WO2008131201A1 (fr) | 2007-04-19 | 2008-10-30 | Global Rainmakers, Inc. | Procédé et système de reconnaissance biométrique |
| US8953849B2 (en) | 2007-04-19 | 2015-02-10 | Eyelock, Inc. | Method and system for biometric recognition |
| US8553948B2 (en) | 2007-09-01 | 2013-10-08 | Eyelock, Inc. | System and method for iris data acquisition for biometric identification |
| US9036871B2 (en) | 2007-09-01 | 2015-05-19 | Eyelock, Inc. | Mobility identity platform |
| US9002073B2 (en) | 2007-09-01 | 2015-04-07 | Eyelock, Inc. | Mobile identity platform |
| US9117119B2 (en) | 2007-09-01 | 2015-08-25 | Eyelock, Inc. | Mobile identity platform |
| US8212870B2 (en) | 2007-09-01 | 2012-07-03 | Hanna Keith J | Mirror system and method for acquiring biometric data |
| WO2009158662A2 (fr) | 2008-06-26 | 2009-12-30 | Global Rainmakers, Inc. | Procédé de réduction de visibilité d'éclairement tout en acquérant une imagerie de haute qualité |
| US8195044B2 (en) | 2009-03-30 | 2012-06-05 | Eyelock Inc. | Biometric camera mount system |
| US10043229B2 (en) | 2011-01-26 | 2018-08-07 | Eyelock Llc | Method for confirming the identity of an individual while shielding that individual's personal data |
| RU2589859C2 (ru) | 2011-02-17 | 2016-07-10 | АЙЛОК ЭлЭлСи | Эффективный способ и система для получения данных изображения сцены и изображения радужной оболочки с использованием одного датчика |
| US20120268241A1 (en) | 2011-04-19 | 2012-10-25 | Eyelock Inc. | Biometric chain of provenance |
| FR2974924B1 (fr) * | 2011-05-06 | 2013-06-14 | Morpho | Procedes d'enrolement et de verification biometrique, systemes et dispositifs associes. |
| FR2979044B1 (fr) * | 2011-08-09 | 2013-08-30 | Morpho | Procede de gestion et de controle de donnees de differents domaines d'identite organises en ensemble structure |
| RU2623795C2 (ru) | 2011-08-22 | 2017-06-29 | АЙЛОК ЭлЭлСи | Системы и способы для захвата безартефактных изображений |
| FR2988197B1 (fr) | 2012-03-19 | 2015-01-02 | Morpho | Procede de generation et de verification d'identite portant l'unicite d'un couple porteur-objet |
| FR2988196B1 (fr) | 2012-03-19 | 2014-03-28 | Morpho | Procede d'authentification d'un individu porteur d'un objet d'identification |
| FR2996942B1 (fr) | 2012-10-11 | 2016-01-08 | Morpho | Procede de generation de cle de signature ameliore |
| US9495526B2 (en) | 2013-03-15 | 2016-11-15 | Eyelock Llc | Efficient prevention of fraud |
| EP3087533A4 (fr) | 2013-12-23 | 2017-09-20 | Eyelock Llc | Procédés et appareil pour une reconnaissance de l'iris à faible consommation d'énergie |
| CN105981047A (zh) | 2014-01-06 | 2016-09-28 | 眼锁有限责任公司 | 用于重复虹膜识别的方法和设备 |
| EP3192009A4 (fr) | 2014-09-12 | 2018-04-25 | Eyelock Llc | Procédés et appareil permettant de diriger le regard d'un utilisateur dans un système de reconnaissance d'iris |
| US9426159B2 (en) * | 2014-09-26 | 2016-08-23 | Intel Corporation | Securing sensor data |
| US10332113B2 (en) | 2014-11-19 | 2019-06-25 | Eyelock Llc | Model-based prediction of an optimal convenience metric for authorizing transactions |
| US10074011B2 (en) | 2015-01-20 | 2018-09-11 | Eyelock Llc | Lens system for high quality visible image acquisition and infra-red iris image acquisition |
| CN107580767B (zh) | 2015-03-12 | 2020-12-29 | 眼锁有限责任公司 | 使用生物特征来管理网络活动的方法和系统 |
| US10311299B2 (en) | 2015-12-21 | 2019-06-04 | Eyelock Llc | Reflected optic camera module for iris recognition in a computing device |
| US10559049B2 (en) * | 2016-04-19 | 2020-02-11 | International Business Machines Corporation | Digital passport country entry stamp |
| WO2017201147A2 (fr) | 2016-05-18 | 2017-11-23 | Eyelock, Llc | Procédés et systèmes de reconnaissance d'iris basés sur un modèle de texture stochastique d'iris |
| WO2018156726A1 (fr) | 2017-02-24 | 2018-08-30 | Eyelock, Llc | Systèmes et procédés de fourniture d'éclairage pour acquisition biométrique d'iris |
| CA3015802C (fr) | 2017-08-31 | 2021-06-22 | Eyelock, Llc | Systemes et methodes d'acquisition biometrique au moyen de distorsion optique |
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-
2007
- 2007-12-21 FR FR0760311A patent/FR2925732B1/fr not_active Expired - Fee Related
-
2008
- 2008-12-19 JP JP2010538780A patent/JP5442633B2/ja not_active Expired - Fee Related
- 2008-12-19 US US12/809,331 patent/US8670562B2/en not_active Expired - Fee Related
- 2008-12-19 WO PCT/EP2008/068122 patent/WO2009083518A1/fr not_active Ceased
- 2008-12-19 EP EP08867083A patent/EP2225697A1/fr not_active Withdrawn
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2013
- 2013-08-16 JP JP2013169292A patent/JP2014002407A/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070014399A1 (en) * | 2005-07-15 | 2007-01-18 | Scheidt Edward M | High assurance key management overlay |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2925732B1 (fr) | 2010-02-12 |
| JP5442633B2 (ja) | 2014-03-12 |
| US8670562B2 (en) | 2014-03-11 |
| WO2009083518A1 (fr) | 2009-07-09 |
| JP2014002407A (ja) | 2014-01-09 |
| US20100310070A1 (en) | 2010-12-09 |
| FR2925732A1 (fr) | 2009-06-26 |
| JP2011507436A (ja) | 2011-03-03 |
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