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System and method for generating unique secure values for digitally signing documents

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04L-009/20
출원번호 US-0947375 (1997-10-08)
발명자 / 주소
  • Hardy Norman
  • Vetter Linda L.
  • Tribble E. Dean
출원인 / 주소
  • Agorics, Inc.
대리인 / 주소
    Pennie & Edmonds LLP
인용정보 피인용 횟수 : 38  인용 특허 : 3

초록

A document is digitally signed with a digital signature that is unique to the signer/document pair. A document digest is generated by applying a predefined one-way hash function to the document. A pseudo-random key is generated by combining the document digest with at least one other value in accord

대표청구항

[ What is claimed is:] [1.] A method of digitally signing a specified document, comprising the steps of:receiving a private key associated with a person or entity signing the document;generating a digest of the specified document using a predefined one-way hash function;generating a pseudo-random ke

이 특허에 인용된 특허 (3)

  1. Matsumoto Hiroshi (Fujisawa JPX) Takaragi Kazuo (Ebina JPX) Susaki Seiichi (Yokohama JPX) Maezawa Hiroyuki (Tama JPX) Koizumi Shinobu (Sagamihara JPX), Electronic document processing system and method of forming digital signature.
  2. Bellare Mihir (New York NY) Guerin Roch Andre (Yorktown Heights NY) Rogaway Phillip Walder (Austin TX), Method and apparatus for data authentication in a data communication environment.
  3. Kaufman Charles W. (Northborough MA) Perlman Radia J. (Acton MA), Method of deriving a per-message signature for a DSS or El Gamal encryption system.

이 특허를 인용한 특허 (38)

  1. Minogue, David; Tucker, Paul A., Agent rank.
  2. Landrock, Peter; Tuliani, Jonathan Roshan, Computationally asymmetric cryptographic systems.
  3. Davis, Michael L.; Hulusi, Tam, Device authentication using a unidirectional protocol.
  4. Zhou, Tong, Digital ticketing system and method.
  5. Halperin,Victor; Tsuria,Yossi; Belenky,Yaacov; Falik,Dov; Sella,Yaron, Hacking prevention system.
  6. Darnell, Stephen; Charnell, William Thomas; Plummer, Wayne; Dias, Blaise Abel Alec; Guthrie, Philippa Joy; Kramskoy, Jeremy Paul; Sexton, Jeremy James; Wynn, Michael John; Rautenback, Keith; Thomas, , Hash table dispatch mechanism for interface methods.
  7. Nagaraja, Nagendra, Identity based symmetric cryptosystem using secure biometric model.
  8. Felsher, David Paul, Information record infrastructure, system and method.
  9. Baxter, Samuel C.; Colson, Thomas J., Method and apparatus for collecting electronic signatures.
  10. Mathiske,Bernd J. W., Method and apparatus for facilitating secure extension of an application.
  11. Thomas, Stephen Paul; Charnell, William Thomas; Darnell, Stephen; Dias, Blaise Abel Alec; Guthrie, Philippa Joy; Kramskoy, Jeremy Paul; Sexton, Jeremy James; Wynn, Michael John; Rautenbach, Keith; Plummer, Wayne, Method and system for dynamic memory management.
  12. Thomas, Stephen Paul; Charnell, William Thomas; Darnell, Stephen; Dias, Blaise Abel Alec; Guthrie, Philippa Joy; Kramskoy, Jeremy Paul; Sexton, Jeremy James; Wynn, Michael John; Rautenbach, Keith; Plummer, Wayne, Method and system for dynamic memory management.
  13. Petersen,Mette Vesterager; Sørensen,Hans Martin Boesgaard, Method of generating pseudo-random numbers in an electronic device, and a method of encrypting and decrypting electronic data.
  14. Spies,Terence R., Methods and arrangements for using a signature generating device for encryption-based authentication.
  15. Hoffberg, Steven M., Multifactorial optimization system and method.
  16. Suzuki,Stephanie Ann; Giridharagopal,Rajini Bala; Iwamoto,Neil Y.; Sevastyanov,Vladimir; Slick,Royce E.; Page,Martin Ervin; Shoa,Katayoun; Tanaka,Yokichi Joe; Chen,Paul; Keung,Stephen, Printing with credit card as identification.
  17. Jackson, Todd; Bunner, Andrew A.; Steiner, Matthew S.; Pongsajapan, John; Chen, Annie Tsung-I; Coleman, Keith J.; Ho, Edward S.; McBride, Sean E.; Cheng, Jessica Shih-Lan, Scoring authors of posts.
  18. Jackson, Todd; Bunner, Andrew A.; Steiner, Matthew S.; Pongsajapan, John; Chen, Annie Tsung-I; Coleman, Keith J.; Ho, Edward S.; McBride, Sean E.; Cheng, Jessica Shih-Lan, Scoring authors of posts.
  19. Jackson, Todd; Bunner, Andrew A.; Steiner, Matthew S.; Pongsajapan, John; Chen, Annie Tsung-I; Coleman, Keith J.; Ho, Edward S.; McBride, Sean E.; Cheng, Jessica Shih-Lan, Scoring authors of posts.
  20. Jackson, Todd; Bunner, Andrew A.; Steiner, Matthew S.; Pongsajapan, John; Chen, Annie Tsung-I; Coleman, Keith J.; Ho, Edward S.; McBride, Sean E.; Cheng, Jessica Shih-Lan, Scoring authors of posts.
  21. Guthery, Scott B.; Robinton, Mark; Davis, Michael Lawrence; Andresky, David, Secure Wiegand communications.
  22. Davis, Michael; Andresky, David; Guthery, Scott B.; Robinton, Mark, Secure wiegand communications.
  23. Guthery, Scott B.; Robinton, Mark; Davis, Michael Lawrence; Andresky, David, Secure wiegand communications.
  24. Goldman, Oliver, Self-signing electronic documents.
  25. Goldman,Oliver, Self-signing electronic documents.
  26. Goldman, Oliver; Chou, Michael; Bansod, Aditya, Software installation package with digital signatures.
  27. Pizano, Erix; Rohatgi, Ryan, System and method for biometrically secured, transparent encryption and decryption.
  28. Hoffberg, Steven M., System and method for determining contingent relevance.
  29. Saarepera, Mart; Buldas, Ahto, System and method for generating a digital certificate.
  30. Saarepera, Mart; Buldas, Ahto, System and method for generating a digital certificate.
  31. Saarepera, Mart; Buldas, Ahto, System and method for generating a digital certificate.
  32. Hoffberg, Steven M., System and method for incentivizing participation in a market transaction.
  33. Hoffberg, Steven M., System and method for providing a payment to a non-winning auction participant.
  34. Felsher, David P.; Nagel, Robert H.; Hoffberg, Steven M., System and method for secure three-party communications.
  35. Felsher, David P.; Nagel, Robert H.; Hoffberg, Steven M., System and method for secure three-party communications.
  36. Nagel,Robert H.; Felsher,David P.; Hoffberg,Steven M., System and method for secure three-party communications.
  37. Deo, Vinay; Tuniman, David; Goldschmidt, Pamela; O'Leary, Michael J.; Kadyk, Don, System for broadcasting to, and programming, a mobile device in a protocol.
  38. Saltsov,Leon; Gaponyuk,Gennadiy, Validator with removable flash memory.
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