DE602007007568D1 - Sichere Berechnung von Privatwerten - Google Patents
Sichere Berechnung von PrivatwertenInfo
- Publication number
- DE602007007568D1 DE602007007568D1 DE602007007568T DE602007007568T DE602007007568D1 DE 602007007568 D1 DE602007007568 D1 DE 602007007568D1 DE 602007007568 T DE602007007568 T DE 602007007568T DE 602007007568 T DE602007007568 T DE 602007007568T DE 602007007568 D1 DE602007007568 D1 DE 602007007568D1
- Authority
- DE
- Germany
- Prior art keywords
- result
- encrypted
- private value
- blinded
- function
- 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.)
- Active
Links
Classifications
-
- 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
- H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
-
- 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
-
- 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
- H04L2209/04—Masking or blinding
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/641,265 US7860244B2 (en) | 2006-12-18 | 2006-12-18 | Secure computation of private values |
Publications (1)
Publication Number | Publication Date |
---|---|
DE602007007568D1 true DE602007007568D1 (de) | 2010-08-19 |
Family
ID=39387391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602007007568T Active DE602007007568D1 (de) | 2006-12-18 | 2007-11-29 | Sichere Berechnung von Privatwerten |
Country Status (4)
Country | Link |
---|---|
US (2) | US7860244B2 (de) |
EP (1) | EP1940074B1 (de) |
AT (1) | ATE473566T1 (de) |
DE (1) | DE602007007568D1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7860244B2 (en) * | 2006-12-18 | 2010-12-28 | Sap Ag | Secure computation of private values |
JP4802274B2 (ja) * | 2009-10-30 | 2011-10-26 | インターナショナル・ビジネス・マシーンズ・コーポレーション | メッセージ送信および受信方法 |
US8015080B2 (en) * | 2009-12-08 | 2011-09-06 | Sap Ag | Privacy preserving artificial immune system |
US8625782B2 (en) * | 2010-02-09 | 2014-01-07 | Mitsubishi Electric Research Laboratories, Inc. | Method for privacy-preserving computation of edit distance of symbol sequences |
US8681973B2 (en) * | 2010-09-15 | 2014-03-25 | At&T Intellectual Property I, L.P. | Methods, systems, and computer program products for performing homomorphic encryption and decryption on individual operations |
WO2012067214A1 (ja) * | 2010-11-15 | 2012-05-24 | 日本電気株式会社 | 情報処理装置、情報処理方法、及び、プログラム |
KR20130057370A (ko) * | 2011-11-23 | 2013-05-31 | 삼성전자주식회사 | 제한된 리소스를 가진 클라이언트의 인증 방법, 기계로 읽을 수 있는 저장 매체, 클라이언트 및 서버 |
EP2915279B1 (de) * | 2012-10-30 | 2019-05-01 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Verafhren und system zur gesicherten auswechselung von daten |
US9094378B1 (en) | 2013-08-16 | 2015-07-28 | Google Inc. | Homomorphic cryptography on numerical values in digital computing |
US9229687B2 (en) | 2013-09-05 | 2016-01-05 | Xerox Corporation | Private two-party computation using partially homomorphic encryption |
EP2930877A1 (de) * | 2014-04-11 | 2015-10-14 | Thomson Licensing | Blinde Paillier-basierte Entschlüsselungsverfahren und Vorrichtungen |
US9740879B2 (en) | 2014-10-29 | 2017-08-22 | Sap Se | Searchable encryption with secure and efficient updates |
US9342707B1 (en) | 2014-11-06 | 2016-05-17 | Sap Se | Searchable encryption for infrequent queries in adjustable encrypted databases |
US9641318B2 (en) * | 2015-01-06 | 2017-05-02 | Google Inc. | Systems and methods for a multiple value packing scheme for homomorphic encryption |
US9830470B2 (en) | 2015-10-09 | 2017-11-28 | Sap Se | Encrypting data for analytical web applications |
CN110825922B (zh) * | 2018-08-14 | 2020-08-04 | 阿里巴巴集团控股有限公司 | 数据统计方法和装置 |
US10746567B1 (en) | 2019-03-22 | 2020-08-18 | Sap Se | Privacy preserving smart metering |
US11356241B2 (en) | 2020-04-15 | 2022-06-07 | Sap Se | Verifiable secret shuffle protocol for encrypted data based on homomorphic encryption and secret sharing |
US11411725B2 (en) | 2020-04-15 | 2022-08-09 | Sap Se | Efficient distributed secret shuffle protocol for encrypted database entries using independent shufflers |
US11368296B2 (en) * | 2020-04-15 | 2022-06-21 | Sap Se | Communication-efficient secret shuffle protocol for encrypted data based on homomorphic encryption and oblivious transfer |
US11368281B2 (en) * | 2020-04-15 | 2022-06-21 | Sap Se | Efficient distributed secret shuffle protocol for encrypted database entries using dependent shufflers |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5564106A (en) * | 1995-03-09 | 1996-10-08 | Motorola, Inc. | Method for providing blind access to an encryption key |
US5638445A (en) * | 1995-09-19 | 1997-06-10 | Microsoft Corporation | Blind encryption |
US5917911A (en) * | 1997-01-23 | 1999-06-29 | Motorola, Inc. | Method and system for hierarchical key access and recovery |
US5991414A (en) * | 1997-09-12 | 1999-11-23 | International Business Machines Corporation | Method and apparatus for the secure distributed storage and retrieval of information |
RU2153191C2 (ru) * | 1998-09-29 | 2000-07-20 | Закрытое акционерное общество "Алкорсофт" | Способ изготовления вслепую цифровой rsa-подписи и устройство для его реализации (варианты) |
US6240188B1 (en) * | 1999-07-06 | 2001-05-29 | Matsushita Electric Industrial Co., Ltd. | Distributed group key management scheme for secure many-to-many communication |
JP4671571B2 (ja) * | 1999-09-29 | 2011-04-20 | 株式会社日立製作所 | 秘密情報の処理装置および秘密情報の処理プログラムを格納するメモリ |
US7472093B2 (en) * | 2000-03-08 | 2008-12-30 | Rsa Security Inc. | Targeted delivery of informational content with privacy protection |
US6772339B1 (en) * | 2000-03-13 | 2004-08-03 | Lucent Technologies Inc. | Mix and match: a new approach to secure multiparty computation |
US20020152179A1 (en) * | 2000-10-27 | 2002-10-17 | Achiezer Racov | Remote payment method and system |
KR100406754B1 (ko) * | 2001-04-11 | 2003-11-21 | 한국정보보호진흥원 | 피케이아이 기반의 상업용 키위탁 방법 및 시스템 |
US7088821B2 (en) * | 2001-05-03 | 2006-08-08 | Cheman Shaik | Absolute public key cryptographic system and method surviving private-key compromise with other advantages |
WO2003050771A1 (es) * | 2001-12-12 | 2003-06-19 | Scytl Online World Security, Sa | Método para votación electrónica segura y protocolos criptográficos y programas informáticos empleados |
EP1569378A4 (de) * | 2002-12-03 | 2006-08-02 | Matsushita Electric Ind Co Ltd | System zum gemeinsamen benutzen von schlüsseln,erzeugungseinrichtung für gemeinsam benutzte schlüssel und wiederherstelleinrichtung für gemeinsam benutzte schlüssel |
US7363499B2 (en) * | 2003-09-18 | 2008-04-22 | Sun Microsystems, Inc. | Blinded encryption and decryption |
US7444514B2 (en) * | 2003-10-15 | 2008-10-28 | International Business Machines Corporation | Group key exchanges with failures |
DE602004006373T2 (de) * | 2004-03-02 | 2008-01-17 | France Telecom | Verfahren und Vorrichtungen zur Erstellung fairer Blindunterschriften |
US20080141035A1 (en) * | 2004-12-27 | 2008-06-12 | Nec Corporation | Limited Blind Signature System |
EP1804416B1 (de) * | 2006-01-02 | 2010-04-07 | Sap Ag | System und Verfahren für den Vergleich von Privatwerten |
EP1835657B1 (de) * | 2006-03-16 | 2014-11-12 | Sap Se | Verfahren und Systeme zur Mehrparteiensortierung von Privatwerten |
US7860244B2 (en) * | 2006-12-18 | 2010-12-28 | Sap Ag | Secure computation of private values |
-
2006
- 2006-12-18 US US11/641,265 patent/US7860244B2/en active Active
-
2007
- 2007-11-29 EP EP07023114A patent/EP1940074B1/de active Active
- 2007-11-29 AT AT07023114T patent/ATE473566T1/de not_active IP Right Cessation
- 2007-11-29 DE DE602007007568T patent/DE602007007568D1/de active Active
-
2010
- 2010-12-06 US US12/961,069 patent/US8150041B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP1940074B1 (de) | 2010-07-07 |
US8150041B2 (en) | 2012-04-03 |
US20080144832A1 (en) | 2008-06-19 |
US7860244B2 (en) | 2010-12-28 |
EP1940074A2 (de) | 2008-07-02 |
US20110075846A1 (en) | 2011-03-31 |
EP1940074A3 (de) | 2008-07-09 |
ATE473566T1 (de) | 2010-07-15 |
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