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 |
JPWO2012067214A1 (ja) * | 2010-11-15 | 2014-05-19 | 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 |
US10116445B2 (en) * | 2012-10-30 | 2018-10-30 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Method and system for protected exchange of data |
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 |
US11411725B2 (en) | 2020-04-15 | 2022-08-09 | Sap Se | Efficient distributed secret shuffle protocol for encrypted database entries using independent shufflers |
US11356241B2 (en) | 2020-04-15 | 2022-06-07 | Sap Se | Verifiable secret shuffle protocol for encrypted data based on homomorphic encryption and secret sharing |
US11368281B2 (en) * | 2020-04-15 | 2022-06-21 | Sap Se | Efficient distributed secret shuffle protocol for encrypted database entries using dependent 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 |
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 |
US6873706B1 (en) * | 1999-09-29 | 2005-03-29 | Hitachi, Ltd. | Processing apparatus, program, or system of secret information |
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 |
EP1469429B1 (de) * | 2001-12-12 | 2009-03-04 | Scytl Secure Electronic Voting, S.A. | Verfahren zum sicheren elektronischen wählen und kryptographische protokolle und computerprogramme dafür |
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 |
EP1838031A4 (de) * | 2004-12-27 | 2013-08-14 | Nec Corp | System für begrenzte blindsignaturen |
DE602006013399D1 (de) * | 2006-01-02 | 2010-05-20 | 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 |
---|---|
US8150041B2 (en) | 2012-04-03 |
US20110075846A1 (en) | 2011-03-31 |
US20080144832A1 (en) | 2008-06-19 |
EP1940074B1 (de) | 2010-07-07 |
EP1940074A3 (de) | 2008-07-09 |
ATE473566T1 (de) | 2010-07-15 |
EP1940074A2 (de) | 2008-07-02 |
US7860244B2 (en) | 2010-12-28 |
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