DE3685987D1 - Verfahren zum vermindern der fuer eine rsa-verschluesselung benoetigten veraenderlichen speicherkapazitaet. - Google Patents
Verfahren zum vermindern der fuer eine rsa-verschluesselung benoetigten veraenderlichen speicherkapazitaet.Info
- Publication number
- DE3685987D1 DE3685987D1 DE8686302861T DE3685987T DE3685987D1 DE 3685987 D1 DE3685987 D1 DE 3685987D1 DE 8686302861 T DE8686302861 T DE 8686302861T DE 3685987 T DE3685987 T DE 3685987T DE 3685987 D1 DE3685987 D1 DE 3685987D1
- Authority
- DE
- Germany
- Prior art keywords
- reducing
- storage capacity
- capacity required
- variable storage
- rsa encryption
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
- G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
- G07F7/1016—Devices or methods for securing the PIN and other transaction-data, e.g. by encryption
-
- 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
- H04L9/3006—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters
- H04L9/302—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters involving the integer factorization problem, e.g. RSA or quadratic sieve [QS] schemes
-
- 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
-
- 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
- H04L2209/26—Testing cryptographic entity, e.g. testing integrity of encryption key or encryption algorithm
-
- 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
- H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Storage Device Security (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US72871785A | 1985-04-30 | 1985-04-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3685987D1 true DE3685987D1 (de) | 1992-08-20 |
DE3685987T2 DE3685987T2 (de) | 1993-02-04 |
Family
ID=24928011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686302861T Expired - Fee Related DE3685987T2 (de) | 1985-04-30 | 1986-04-16 | Verfahren zum vermindern der fuer eine rsa-verschluesselung benoetigten veraenderlichen speicherkapazitaet. |
Country Status (3)
Country | Link |
---|---|
US (1) | US4736423A (de) |
EP (1) | EP0202768B1 (de) |
DE (1) | DE3685987T2 (de) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5020105A (en) * | 1986-06-16 | 1991-05-28 | Applied Information Technologies Corporation | Field initialized authentication system for protective security of electronic information networks |
US4841570A (en) * | 1987-05-11 | 1989-06-20 | The United States Of America As Represented By The United States Department Of Energy | One-way transformation of information |
US5140634A (en) * | 1987-09-07 | 1992-08-18 | U.S Philips Corporation | Method and apparatus for authenticating accreditations and for authenticating and signing messages |
US4933970A (en) * | 1988-01-19 | 1990-06-12 | Yeda Research And Development Company Limited | Variants of the fiat-shamir identification and signature scheme |
US5392353A (en) * | 1989-08-07 | 1995-02-21 | Tv Answer, Inc. | Interactive satellite broadcast network |
CA2029042C (en) * | 1989-11-01 | 2000-08-15 | Yuji Kobayashi | Apparatus and method for handling card |
US5204901A (en) * | 1991-08-01 | 1993-04-20 | General Electric Company | Public key cryptographic mechanism |
US5201000A (en) * | 1991-09-27 | 1993-04-06 | International Business Machines Corporation | Method for generating public and private key pairs without using a passphrase |
US5274707A (en) * | 1991-12-06 | 1993-12-28 | Roger Schlafly | Modular exponentiation and reduction device and method |
GB9203425D0 (en) * | 1992-02-18 | 1992-09-23 | Sewell Roger F | Devices for implementing public key cryptography and digital signatures |
FR2690258B1 (fr) * | 1992-04-17 | 1997-03-28 | France Telecom | Procede de controle d'acces du type autorisant l'acces a une fonction d'exploitation d'un module d'exploitation a l'aide d'un mot de controle. |
US5491752A (en) * | 1993-03-18 | 1996-02-13 | Digital Equipment Corporation, Patent Law Group | System for increasing the difficulty of password guessing attacks in a distributed authentication scheme employing authentication tokens |
US5604803A (en) * | 1994-06-03 | 1997-02-18 | Sun Microsystems, Inc. | Method and apparatus for secure remote authentication in a public network |
US5748735A (en) * | 1994-07-18 | 1998-05-05 | Bell Atlantic Network Services, Inc. | Securing E-mail communications and encrypted file storage using yaksha split private key asymmetric cryptography |
US5838792A (en) * | 1994-07-18 | 1998-11-17 | Bell Atlantic Network Services, Inc. | Computer system for centralized session key distribution, privacy enhanced messaging and information distribution using a split private key public cryptosystem |
US5905799A (en) * | 1994-07-20 | 1999-05-18 | Bell Atlantic Network Services, Inc. | Programmed computer for identity verification, forming joint signatures and session key agreement in an RSA public cryptosystem |
US5588061A (en) * | 1994-07-20 | 1996-12-24 | Bell Atlantic Network Services, Inc. | System and method for identity verification, forming joint signatures and session key agreement in an RSA public cryptosystem |
US5606609A (en) * | 1994-09-19 | 1997-02-25 | Scientific-Atlanta | Electronic document verification system and method |
US5737419A (en) * | 1994-11-09 | 1998-04-07 | Bell Atlantic Network Services, Inc. | Computer system for securing communications using split private key asymmetric cryptography |
FR2737369A1 (fr) * | 1995-07-26 | 1997-01-31 | Trt Telecom Radio Electr | Systeme de communication de messages cryptes selon un procede de type r.s.a. |
FR2746566B1 (fr) * | 1996-03-21 | 1998-04-24 | Alsthom Cge Alcatel | Methode pour etablir des communications securisees et systeme de chiffrement/dechiffrement associe |
US7770230B2 (en) | 2002-04-22 | 2010-08-03 | Arvato Digital Services Canada, Inc. | System for dynamically encrypting content for secure internet commerce and providing embedded fulfillment software |
US7010697B2 (en) | 1996-06-28 | 2006-03-07 | Protexis, Inc. | System for dynamically encrypting information for secure internet commerce and providing embedded fulfillment software |
US7356847B2 (en) * | 1996-06-28 | 2008-04-08 | Protexis, Inc. | System for dynamically encrypting content for secure internet commerce and providing embedded fulfillment software |
US5809145A (en) * | 1996-06-28 | 1998-09-15 | Paradata Systems Inc. | System for distributing digital information |
EP0849713A1 (de) * | 1996-12-17 | 1998-06-24 | TELEFONAKTIEBOLAGET L M ERICSSON (publ) | Verfahren und Gerät zur Verschlüsselung von Kodes |
AUPO799197A0 (en) * | 1997-07-15 | 1997-08-07 | Silverbrook Research Pty Ltd | Image processing method and apparatus (ART01) |
US6035406A (en) * | 1997-04-02 | 2000-03-07 | Quintet, Inc. | Plurality-factor security system |
US7249108B1 (en) | 1997-07-15 | 2007-07-24 | Silverbrook Research Pty Ltd | Validation protocol and system |
US7743262B2 (en) * | 1997-07-15 | 2010-06-22 | Silverbrook Research Pty Ltd | Integrated circuit incorporating protection from power supply attacks |
US7246098B1 (en) * | 1997-07-15 | 2007-07-17 | Silverbrook Research Pty Ltd | Consumable authentication protocol and system |
US7346586B1 (en) | 1997-07-15 | 2008-03-18 | Silverbrook Research Pty Ltd | Validation protocol and system |
US6195447B1 (en) | 1998-01-16 | 2001-02-27 | Lucent Technologies Inc. | System and method for fingerprint data verification |
US6223288B1 (en) | 1998-05-22 | 2001-04-24 | Protexis Inc. | System for persistently encrypting critical software file to prevent installation of software program on unauthorized computers |
US6816968B1 (en) * | 1998-07-10 | 2004-11-09 | Silverbrook Research Pty Ltd | Consumable authentication protocol and system |
US6490353B1 (en) * | 1998-11-23 | 2002-12-03 | Tan Daniel Tiong Hok | Data encrypting and decrypting apparatus and method |
US7065210B1 (en) * | 1999-01-25 | 2006-06-20 | Murata Kikai Kabushiki Kaisha | Secret key generation method, encryption method, cryptographic communications method, common key generator, cryptographic communications system, and recording media |
GB9902687D0 (en) | 1999-02-08 | 1999-03-31 | Hewlett Packard Co | Cryptographic protocol |
JP3833412B2 (ja) | 1999-04-09 | 2006-10-11 | 富士通株式会社 | 有限体演算における表現データ生成装置および方法 |
DE19935285B4 (de) * | 1999-07-27 | 2012-07-05 | Deutsche Telekom Ag | Verfahren zur Generierung/Regenerierung eines Chiffrierschlüssels für ein Kryptographieverfahren |
US6473743B1 (en) * | 1999-12-28 | 2002-10-29 | Pitney Bowes Inc. | Postage meter having delayed generation of cryptographic security parameters |
DE10004846A1 (de) * | 2000-02-02 | 2001-08-09 | Deutsche Telekom Ag | Verfahren zur Verschlüsselung von Daten bei der Übertragung über nicht abhörsichere Medien |
US7197642B2 (en) * | 2000-02-15 | 2007-03-27 | Silverbrook Research Pty Ltd | Consumable authentication protocol and system |
US7685423B1 (en) * | 2000-02-15 | 2010-03-23 | Silverbrook Research Pty Ltd | Validation protocol and system |
FR2830146B1 (fr) * | 2001-09-24 | 2003-10-31 | Gemplus Card Int | Procede de mise en oeuvre, dans un composant electronique, d'un algorithme de cryptographie et composant correspondant |
FR2841411B1 (fr) * | 2002-06-19 | 2004-10-29 | Gemplus Card Int | Procede de generation de cles electroniques pour procede de crytographie a cle publique et objet portatif securise mettant en oeuvre le procede |
FR2858496B1 (fr) * | 2003-07-31 | 2005-09-30 | Gemplus Card Int | Procede pour la mise en oeuvre securisee d'un algorithme de cryptographie de type rsa et composant correspondant |
CN100505620C (zh) * | 2005-12-09 | 2009-06-24 | 上海燕托计算机有限公司 | 一种减少rsa密钥变量存储空间的方法 |
US8472620B2 (en) * | 2007-06-15 | 2013-06-25 | Sony Corporation | Generation of device dependent RSA key |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3764742A (en) * | 1971-12-23 | 1973-10-09 | Ibm | Cryptographic identification system |
US4405829A (en) * | 1977-12-14 | 1983-09-20 | Massachusetts Institute Of Technology | Cryptographic communications system and method |
US4408203A (en) * | 1978-01-09 | 1983-10-04 | Mastercard International, Inc. | Security system for electronic funds transfer system |
US4424414A (en) * | 1978-05-01 | 1984-01-03 | Board Of Trustees Of The Leland Stanford Junior University | Exponentiation cryptographic apparatus and method |
FR2480101A1 (fr) * | 1980-04-10 | 1981-10-16 | Guigan Jean | Dispositif pour le stockage et la distribution automatique d'objets |
US4351982A (en) * | 1980-12-15 | 1982-09-28 | Racal-Milgo, Inc. | RSA Public-key data encryption system having large random prime number generating microprocessor or the like |
US4438824A (en) * | 1981-04-22 | 1984-03-27 | Siemens Corporation | Apparatus and method for cryptographic identity verification |
US4423287A (en) * | 1981-06-26 | 1983-12-27 | Visa U.S.A., Inc. | End-to-end encryption system and method of operation |
US4453074A (en) * | 1981-10-19 | 1984-06-05 | American Express Company | Protection system for intelligent cards |
US4630201A (en) * | 1984-02-14 | 1986-12-16 | International Security Note & Computer Corporation | On-line and off-line transaction security system using a code generated from a transaction parameter and a random number |
JPS6178240A (ja) * | 1984-09-25 | 1986-04-21 | Nippon Telegr & Teleph Corp <Ntt> | Des暗号装置 |
-
1986
- 1986-01-31 US US06/823,151 patent/US4736423A/en not_active Expired - Fee Related
- 1986-04-16 EP EP86302861A patent/EP0202768B1/de not_active Expired - Fee Related
- 1986-04-16 DE DE8686302861T patent/DE3685987T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3685987T2 (de) | 1993-02-04 |
US4736423A (en) | 1988-04-05 |
EP0202768B1 (de) | 1992-07-15 |
EP0202768A2 (de) | 1986-11-26 |
EP0202768A3 (en) | 1988-11-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |