JP4670270B2 - 通信システム及び通信装置 - Google Patents
通信システム及び通信装置 Download PDFInfo
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- JP4670270B2 JP4670270B2 JP2004190192A JP2004190192A JP4670270B2 JP 4670270 B2 JP4670270 B2 JP 4670270B2 JP 2004190192 A JP2004190192 A JP 2004190192A JP 2004190192 A JP2004190192 A JP 2004190192A JP 4670270 B2 JP4670270 B2 JP 4670270B2
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- 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
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/045—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0492—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload by using a location-limited connection, e.g. near-field communication or limited proximity of entities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/18—Network architectures or network communication protocols for network security using different networks or channels, e.g. using out of band channels
-
- 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
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
-
- 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
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/50—Secure pairing of devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/80—Wireless
- H04L2209/805—Lightweight hardware, e.g. radio-frequency identification [RFID] or sensor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Near-Field Transmission Systems (AREA)
Description
近接能動通信手段は,該近接能動通信手段に割当てられた識別情報を暗号化鍵とともに,外部通信装置に送信するように構成してもよい。
近接受動通信手段は,外部通信装置に割当てられた識別情報を暗号化鍵とともに,受信するようにしてもよい。
20 セキュア通信装置
22 セキュア通信装置
100 通信システム
101 能動通信部
102 非対称鍵生成部102
103 復号器
104 広域通信部
105 暗号化/復号器
106 受動通信部
107 暗号化器
108 乱数発生器
109 広域通信部
110 暗号化/復号器
Claims (3)
- 複数の通信装置を備える通信システムにおいて:
第1の通信装置は,
近接する外部通信装置に対し電磁波を介して問合せ信号を送信し,該問合せ信号の応答を待ち受ける近接能動通信手段と;
前記近接能動通信手段の通信可能領域よりも広い範囲で電磁波を介して通信可能な広域通信手段と;
前記近接能動通信手段または前記広域通信手段のうちいずれか一方の通信手段に切換える切換え手段と;
非対称である暗号化鍵と復号鍵とを一組とし,前記一組の暗号化鍵と該暗号化鍵に対応する復号鍵とを生成する非対称鍵生成手段と;
を備えており,
第2の通信装置は,
近接する外部通信装置から前記問合せ信号を受信し,該問合せ信号に応答する応答信号を送信する近接受動通信手段と;
前記近接受動通信手段の通信可能領域よりも広い範囲で電磁波を介して通信可能な広域通信手段と;
前記近接受動通信手段または前記広域通信手段のうちいずれか一方の通信手段に切換える切換え手段と;
乱数を発生し,該乱数を用いてセッション鍵を生成するセッション鍵生成手段と;
前記セッション鍵を暗号化する暗号化手段と;
を備えており,
前記第2の通信装置は,前記第1の通信装置から前記近接能動通信手段を介して送信された前記暗号化鍵を用いて,前記セッション鍵を暗号化セッション鍵に暗号化するとともに,前記第1の通信装置に前記暗号化セッション鍵を前記近接受動通信手段を介して送信し;
前記第1の通信装置は,前記復号鍵を用いて,前記暗号化セッション鍵を前記セッション鍵に復号するとともに,前記第2の通信装置に対し,前記広域通信手段に切換えて通信することを要求する通信切換え要求信号を送信し,
前記近接能動通信手段は,該近接能動通信手段に割当てられた識別情報を前記暗号化鍵とともに,前記近接受動通信手段に送信し;
前記近接受動通信手段は,該近接受動通信手段に割当てられた識別情報を前記暗号化セッション鍵とともに,前記近接能動通信手段に送信することで,前記第1の通信装置および前記第2の通信装置に備わる広域通信手段は,通信相手の識別情報を取得することを特徴とする,通信システム。 - 通信装置であって:
近接する外部通信装置に対し電磁波を介して問合せ信号を送信し,該問合せ信号の応答を待ち受ける近接能動通信手段と;
前記近接能動通信手段の通信可能領域よりも広い範囲で電磁波を介して通信可能な広域通信手段と;
前記近接能動通信手段または前記広域通信手段のうちいずれか一方の通信手段に切換える切換え手段と;
非対称である暗号化鍵と復号鍵とを一組とし,前記一組の暗号化鍵と該暗号化鍵に対応する復号鍵とを生成する非対称鍵生成手段と;
を備えており,
前記通信装置は,前記問合せ信号を受信し該問合せ信号に応答する応答信号を送信する近接受動通信手段を介して前記外部通信装置から送信される暗号化されたセッション鍵を,前記復号鍵を用いて復号するとともに,該外部通信装置に対し,前記広域通信手段に切換えて通信することを要求する通信切換え要求信号を送信し,
前記近接能動通信手段は,該近接能動通信手段に割当てられた識別情報を前記暗号化鍵とともに,外部通信装置に送信し;
前記外部通信装置に割当てられた識別情報を前記暗号化セッション鍵とともに,該外部通信装置から前記近接能動通信手段が受信することで,前記通信装置および前記外部通信装置に備わる広域通信手段は,通信相手である前記識別情報を取得することを特徴とする,通信装置。 - 通信装置において:
近接する外部通信装置から前記問合せ信号を受信し,該問合せ信号に応答する応答信号を送信する近接受動通信手段と;
前記近接受動通信手段の通信可能領域よりも広い範囲で電磁波を介して通信可能な広域通信手段と;
前記近接受動通信手段または前記広域通信手段のうちいずれか一方の通信手段に切換える切換え手段と;
乱数を発生し,該乱数を用いてセッション鍵を生成するセッション鍵生成手段と;
前記セッション鍵を暗号化する暗号化手段と;
を備えており,
前記通信装置は,電磁波を介して前記問合せ信号を送信し該問合せ信号の応答を待ち受ける近接能動通信手段を介して前記外部通信装置から送信された暗号化鍵を用いて,前記セッション鍵を暗号化セッション鍵に暗号化するとともに,該外部通信装置に前記暗号化セッション鍵を前記近接受動通信手段を介して送信し;
前記外部通信装置から,前記広域通信手段に切換えて通信することを要求する通信切換え要求信号を受信し,
前記近接受動通信手段は,前記外部通信装置に割当てられた識別情報を前記暗号化鍵とともに,受信し;
前記近接受動通信手段は,該近接受動通信手段に割当てられた識別情報を前記暗号化セッション鍵とともに,前記外部通信装置に送信することで,前記通信装置および前記外部通信装置に備わる広域通信手段は,通信相手である前記識別情報を取得することを特徴とする,通信装置。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004190192A JP4670270B2 (ja) | 2004-06-28 | 2004-06-28 | 通信システム及び通信装置 |
EP05765153.1A EP1770900B1 (en) | 2004-06-28 | 2005-06-27 | Communication system and communication device |
KR1020067027382A KR101128634B1 (ko) | 2004-06-28 | 2005-06-27 | 통신 시스템 및 통신 장치 |
US11/597,821 US8068784B2 (en) | 2004-06-28 | 2005-06-27 | Communication system and communication device |
CN200580020221A CN100586061C (zh) | 2004-06-28 | 2005-06-27 | 通信系统和通信设备 |
PCT/JP2005/011735 WO2006001420A1 (ja) | 2004-06-28 | 2005-06-27 | 通信システム及び通信装置 |
HK07108204.8A HK1103939A1 (en) | 2004-06-28 | 2007-07-27 | Communication system and communication device |
US13/287,622 US8577293B2 (en) | 2004-06-28 | 2011-11-02 | Communication system and communication device |
Applications Claiming Priority (1)
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JP2004190192A JP4670270B2 (ja) | 2004-06-28 | 2004-06-28 | 通信システム及び通信装置 |
Publications (2)
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JP2006014076A JP2006014076A (ja) | 2006-01-12 |
JP4670270B2 true JP4670270B2 (ja) | 2011-04-13 |
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JP2004190192A Expired - Fee Related JP4670270B2 (ja) | 2004-06-28 | 2004-06-28 | 通信システム及び通信装置 |
Country Status (7)
Country | Link |
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US (2) | US8068784B2 (ja) |
EP (1) | EP1770900B1 (ja) |
JP (1) | JP4670270B2 (ja) |
KR (1) | KR101128634B1 (ja) |
CN (1) | CN100586061C (ja) |
HK (1) | HK1103939A1 (ja) |
WO (1) | WO2006001420A1 (ja) |
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JP2006014076A (ja) | 2006-01-12 |
HK1103939A1 (en) | 2007-12-28 |
KR101128634B1 (ko) | 2012-03-26 |
EP1770900A1 (en) | 2007-04-04 |
EP1770900A4 (en) | 2013-09-11 |
KR20070022113A (ko) | 2007-02-23 |
CN1969499A (zh) | 2007-05-23 |
US8068784B2 (en) | 2011-11-29 |
WO2006001420A1 (ja) | 2006-01-05 |
EP1770900B1 (en) | 2018-08-08 |
US20120052806A1 (en) | 2012-03-01 |
US8577293B2 (en) | 2013-11-05 |
US20080020707A1 (en) | 2008-01-24 |
CN100586061C (zh) | 2010-01-27 |
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