JP2011521581A - 可動鍵装置を伴う量子鍵配送 - Google Patents
可動鍵装置を伴う量子鍵配送 Download PDFInfo
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- JP2011521581A JP2011521581A JP2011510039A JP2011510039A JP2011521581A JP 2011521581 A JP2011521581 A JP 2011521581A JP 2011510039 A JP2011510039 A JP 2011510039A JP 2011510039 A JP2011510039 A JP 2011510039A JP 2011521581 A JP2011521581 A JP 2011521581A
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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)
- H04L9/083—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) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
- H04L9/0833—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) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key
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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)
- H04L9/0827—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) involving distinctive intermediate devices or communication paths
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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
- H04L9/0852—Quantum cryptography
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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
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
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- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Theoretical Computer Science (AREA)
- Optical Communication System (AREA)
Abstract
Description
Claims (18)
- 第1のエンティティから第2のエンティティへの鍵配送方法であって、第1のエンティティが可動鍵装置と秘密データを共有するために前記可動鍵装置と通信するステップと、前記可動鍵装置を前記第2のエンティティとの量子リンクを有する場所まで移動させるステップと、前記量子リンク上に前記可動鍵装置から前記第2のエンティティまで量子信号を送信するステップであって、量子信号が前記秘密データに基づく該ステップと、前記第1のエンティティおよび前記第2のエンティティが第2のエンティティにより受信された量子信号に基づき鍵合意に着手するステップとを含む、方法。
- 前記秘密データが乱数の少なくとも1つのストリングを含む、請求項1に記載の方法。
- 秘密データが第1のエンティティから可動鍵装置に送信される、請求項1または2に記載の方法。
- 第2のエンティティとの量子リンクが、自由空間経路、および適切な導波路(複数可)を通る経路のうちの1つまたは複数を含む、請求項1から3のいずれか一項に記載の方法。
- 量子信号が一連の適切に変調された信号光子を含む、請求項1から4のいずれか一項に記載の方法。
- 鍵合意に着手するステップが第1のエンティティおよび第2のエンティティが認証を行うステップを含む、請求項1から5のいずれか一項に記載の方法。
- 可動鍵装置が一度、しかも一回だけ秘密データに基づき量子信号を送信する、請求項1から6のいずれか一項に記載の方法。
- 秘密データが使用されたときに秘密データを削除するステップを含む、請求項7に記載の方法。
- 可動鍵装置が安全で改ざんの恐れのないハウジングを含む、請求項1から8のいずれか一項に記載の方法。
- 第1のエンティティと可動鍵装置の間の通信が暗号化される、請求項1から9のいずれか一項に記載の方法。
- 第1のエンティティと可動鍵装置の間の通信が、第1のエンティティと可動鍵装置の間の量子鍵配送により得られる量子鍵を使って第1のエンティティと可動鍵装置の間の通信を暗号化することにより保護される、請求項10に記載の方法。
- 可動鍵装置が少なくとも1つの量子ノードを介して第1のエンティティにリンクされる、請求項10または11に記載の方法。
- 第1のエンティティおよび第2のエンティティが鍵合意に着手した後、第1のエンティティおよび第2のエンティティが、第2のエンティティと第3のエンティティの間の量子交換の詳細に関して安全に通信するステップをさらに含む、請求項1から12のいずれか一項に記載の方法。
- 第1のエンティティおよび第3のエンティティが新しい鍵を合意するために鍵合意ステップに着手するステップをさらに含む、請求項13に記載の方法。
- 可動鍵装置が持ち運びできる装置である、請求項1から14のいずれか一項に記載の方法。
- 可動鍵装置が郵便または急使により移動される、請求項15に記載の方法。
- 可動鍵装置が乗り物内部に組み込まれる、請求項1から14のいずれか一項に記載の方法。
- 可動鍵装置が航空機内部に組み込まれる、請求項17に記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US7180708P | 2008-05-19 | 2008-05-19 | |
GB0809045.8 | 2008-05-19 | ||
GBGB0809045.8A GB0809045D0 (en) | 2008-05-19 | 2008-05-19 | Quantum key distribution involving moveable key device |
US61/071,807 | 2008-05-19 | ||
PCT/GB2009/001226 WO2009141587A1 (en) | 2008-05-19 | 2009-05-15 | Quantum key distribution involving moveable key device |
Publications (1)
Publication Number | Publication Date |
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JP2011521581A true JP2011521581A (ja) | 2011-07-21 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2011510039A Pending JP2011521581A (ja) | 2008-05-19 | 2009-05-15 | 可動鍵装置を伴う量子鍵配送 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8755525B2 (ja) |
EP (1) | EP2281361B1 (ja) |
JP (1) | JP2011521581A (ja) |
GB (1) | GB0809045D0 (ja) |
WO (1) | WO2009141587A1 (ja) |
Cited By (3)
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JP2015501593A (ja) * | 2011-10-28 | 2015-01-15 | デバイオテック・ソシエテ・アノニム | 医療用デバイスとその遠隔デバイスの間のセキュアな通信 |
JP2015531184A (ja) * | 2012-07-09 | 2015-10-29 | デバイオテック・ソシエテ・アノニム | 医療デバイスとその遠隔デバイスの間の保護された通信 |
JP2020145572A (ja) * | 2019-03-06 | 2020-09-10 | 株式会社Ihi | 通信装置、事前共有鍵の更新方法及び事前共有鍵の更新プログラム |
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GB0801395D0 (en) | 2008-01-25 | 2008-03-05 | Qinetiq Ltd | Network having quantum key distribution |
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WO2009093036A2 (en) | 2008-01-25 | 2009-07-30 | Qinetiq Limited | Quantum cryptography apparatus |
GB0801492D0 (en) | 2008-01-28 | 2008-03-05 | Qinetiq Ltd | Optical transmitters and receivers for quantum key distribution |
GB0809038D0 (en) | 2008-05-19 | 2008-06-25 | Qinetiq Ltd | Quantum key device |
GB0809045D0 (en) | 2008-05-19 | 2008-06-25 | Qinetiq Ltd | Quantum key distribution involving moveable key device |
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Also Published As
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US20110064222A1 (en) | 2011-03-17 |
US8755525B2 (en) | 2014-06-17 |
GB0809045D0 (en) | 2008-06-25 |
EP2281361B1 (en) | 2021-03-24 |
EP2281361A1 (en) | 2011-02-09 |
WO2009141587A1 (en) | 2009-11-26 |
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