JP4938678B2 - 類似性指標のセキュアな計算 - Google Patents
類似性指標のセキュアな計算 Download PDFInfo
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- JP4938678B2 JP4938678B2 JP2007540801A JP2007540801A JP4938678B2 JP 4938678 B2 JP4938678 B2 JP 4938678B2 JP 2007540801 A JP2007540801 A JP 2007540801A JP 2007540801 A JP2007540801 A JP 2007540801A JP 4938678 B2 JP4938678 B2 JP 4938678B2
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- 238000011524 similarity measure Methods 0.000 title claims description 18
- 238000004364 calculation method Methods 0.000 title description 18
- 238000000034 method Methods 0.000 claims description 14
- 238000012795 verification Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 8
- 239000013598 vector Substances 0.000 description 7
- 238000013459 approach Methods 0.000 description 3
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- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
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Classifications
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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
- H04L9/32—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
- H04L9/3226—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 using a predetermined code, e.g. password, passphrase or PIN
- H04L9/3231—Biological data, e.g. fingerprint, voice or retina
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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
- H04L9/008—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving homomorphic encryption
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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
- H04L9/32—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
- H04L9/3218—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 using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
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- 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
- H04L2209/46—Secure multiparty computation, e.g. millionaire problem
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- 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
Description
Claims (14)
- 少なくとも2つのデータセットの類似性の指標をセキュア計算する方法であって、
検証装置が、暗号化された第1データセットと平文の第1データセットとを取得するステップと、
認証センサが、暗号化された第2データセットが生成される前記平文の第1データセットに対して準同型暗号化を有する暗号化を実行するステップと、
前記検証装置と前記認証センサとが、前記暗号化された第1データセットと前記暗号化された第2データセットとに部分的に基づき、前記暗号化された第1及び第2データセットの類似性の指標を計算するステップと、
前記認証センサが、前記暗号化されたデータセットと前記類似性の指標とが、正しく計算されたことの公開認証可能なプルーフを提供するステップと、
前記認証センサが、前記類似性の指標は所定の基準に従っているか判断するステップと、
を有する方法。 - 前記類似性の指標は、ハミング距離を有する、請求項1記載の方法。
- 前記平文の第1データセットは、個体の生体特徴から抽出される、請求項1又は2記載の方法。
- 前記類似性の指標は、所定の閾値を下回る場合、所定の基準に従っているとみなされる、請求項1乃至3何れか一項記載の方法。
- 公開鍵に対応する私有鍵は、前記公開鍵に対して対数関数を実行することによって生成される、請求項1乃至4何れか一項記載の方法。
- 少なくとも2つのデータセットの類似性の指標をセキュア計算するシステムであって、
暗号化された第1データセットを取得するよう構成される検証装置と、
個体から平文の第1データセットを抽出し、暗号化された第2データセットが生成される該平文の第1データセットに対して準同型暗号化を有する暗号化を実行するよう構成される認証センサと、
を有し、
前記検証装置と前記認証センサとは、前記暗号化された第1データセットと前記暗号化された第2データセットとに部分的に基づき、前記暗号化された第1及び第2データセットの類似性の指標を一緒に計算するよう構成され、
前記認証センサはさらに、前記暗号化されたデータセットと前記類似性の指標とが正しく計算されたという公開認証可能なプルーフを提供し、前記類似性の指標が所定の基準に従っているか判断するよう構成されるシステム。 - 前記平文の第1データセットは、個体の生体特徴から抽出される、請求項6記載のシステム。
- 前記個体から第2生体データセットを抽出し、前記暗号化された第1生体データセットを生成するため、第2生体データセットを暗号化するよう構成される登録センサをさらに有する、請求項7記載のシステム。
- 前記検証装置は、ネットワークを介し前記暗号化された第1データセットを取得するよう構成される、請求項6乃至8何れか一項記載のシステム。
- 前記類似性の指標は、所定の閾値を下回る場合、所定の基準に従っているとみなされるように構成される、請求項6乃至9何れか一項記載のシステム。
- 公開鍵に対応する私有鍵が前記公開鍵に対して対数関数を実行することによって生成されるように、さらに構成される、請求項6乃至10何れか一項記載のシステム。
- 前記認証センサが、前記暗号化された第2データセットと、前記暗号化された第1及び第2データセットの組み合わせとを提供し、前記検証装置が、前記暗号化された第1データセットを提供するように、前記類似性の指標が一緒に計算される、請求項6乃至11何れか一項記載のシステム。
- データの暗号化と処理とがアウトソースされるサーバをさらに有する、請求項6乃至12何れか一項記載のシステム。
- コンピュータ実行可能コンポーネントが装置に含まれる処理ユニット上で実行されると、請求項1乃至5何れか一項記載のステップを前記装置に実行させるコンピュータ実行可能コンポーネントを有するコンピュータプログラム。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US62840804P | 2004-11-16 | 2004-11-16 | |
US60/628,408 | 2004-11-16 | ||
US66890505P | 2005-04-06 | 2005-04-06 | |
US60/668,905 | 2005-04-06 | ||
PCT/IB2005/053690 WO2006054208A1 (en) | 2004-11-16 | 2005-11-09 | Securely computing a similarity measure |
Publications (2)
Publication Number | Publication Date |
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JP2008521025A JP2008521025A (ja) | 2008-06-19 |
JP4938678B2 true JP4938678B2 (ja) | 2012-05-23 |
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JP2007540801A Active JP4938678B2 (ja) | 2004-11-16 | 2005-11-09 | 類似性指標のセキュアな計算 |
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Country | Link |
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US (1) | US8281148B2 (ja) |
EP (1) | EP1815637B1 (ja) |
JP (1) | JP4938678B2 (ja) |
CN (1) | CN101057448B (ja) |
WO (1) | WO2006054208A1 (ja) |
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- 2005-11-09 WO PCT/IB2005/053690 patent/WO2006054208A1/en active Application Filing
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US10594473B2 (en) | 2015-02-10 | 2020-03-17 | Kabushikikaisha Rnai | Terminal device, database server, and calculation system |
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CN101057448A (zh) | 2007-10-17 |
US20090006855A1 (en) | 2009-01-01 |
WO2006054208A1 (en) | 2006-05-26 |
EP1815637B1 (en) | 2016-04-20 |
CN101057448B (zh) | 2012-02-15 |
US8281148B2 (en) | 2012-10-02 |
JP2008521025A (ja) | 2008-06-19 |
EP1815637A1 (en) | 2007-08-08 |
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