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Method and system for depositing private key used in RSA cryptosystem 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04L-009/30
출원번호 US-0900978 (1997-07-25)
우선권정보 JP-0274734 (1996-10-17)
발명자 / 주소
  • Obata Masanori,JPX
  • Sugiyama Hiroyuki,JPX
  • Okukawa Moribumi,JPX
  • Okamoto Tatsuaki,JPX
출원인 / 주소
  • Nippon Telegraph and Telephone Corporation, JPX
대리인 / 주소
    Jones & Askew
인용정보 피인용 횟수 : 62  인용 특허 : 3

초록 ▼

A scheme for depositing a private key used in the RSA cryptosystem which is capable of maintaining the private key more safely, without requiring a user to always carry around a storage medium. In this scheme, a private key of a user is divided into a first partial private key and a second partial p

대표청구항 ▼

[ What is claimed is:] [1.] A method for depositing a private key used in an RSA cryptosystem, comprising the steps of:dividing a private key of a user into a first partial private key and a second partial private key at a user's entity, where the first partial private key is set to be maintained at

이 특허에 인용된 특허 (3)

  1. Hardy Douglas A. (Mesa AZ) Fossey Craig R. (Scottsdale AZ) Balogh Craig R. (Mesa AZ) Tugenberg Steven R. (Scottsdale AZ), Encryption method and system for portable data.
    상세보기
  2. Austin Jeffrey R. (Hindhead GB2), Public key diversification method.
    상세보기
  3. Ganesan Ravi (Arlington VA), System and method for centralized session key distribution, privacy enhanced messaging and information distribution usin.
    상세보기

이 특허를 인용한 특허 (62)

  1. Sandhu, Ravinderpal Singh; Schoppert, Brett Jason; Ganesan, Ravi; Bellare, Mihir; deSa, Colin Joseph, Asymmetric crypto-graphy with rolling key security.
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  2. Sandhu, Ravinderpal Singh; Schoppert, Brett Jason; Ganesan, Ravi; Bellare, Mihir; deSa, Colin Joseph, Asymmetric key pair having a kiosk mode.
    상세보기
  3. Dundas, Alan; Herskedal, Eirik, Authentication of PKI credential by use of a one time password and pin.
    상세보기
  4. Sandhu,Ravinderpal Singh; Schoppert,Brett Jason; Ganesan,Ravi; Bellare,Mihir; Desa,Colin Joseph, Authentication protocol using a multi-factor asymmetric key pair.
    상세보기
  5. Filonov, Vladimir; Lum, Henry; Culbert, Jeffrey; Blander, Daniel; Subramaniam, Somasundaram; Cicchitto, Angelo; Gvildys, Paul, Call event tagging and call recording stitching for contact center call recordings.
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  6. Filonov, Vladimir; Lum, Henry; Culbert, Jeffrey; Blander, Daniel; Subramaniam, Somasundaram; Cicchitto, Angelo; Gvildys, Paul, Call event tagging and call recording stitching for contact center call recordings.
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  7. Wilt,Andrew N.; Kelly,Michael J., Cipher method and system for verifying a decryption of an encrypted user data key.
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  8. Magne, John, Configurable smartcard.
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  9. Cross,David B.; Gu,Jianrong; Benaloh,Josh D.; Jones,Thomas C.; Leach,Paul J.; Pittaway,Glenn D., Deriving a symmetric key from an asymmetric key for file encryption or decryption.
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  10. Cross,David B.; Gu,Jianrong; Benaloh,Josh D.; Jones,Thomas C.; Leach,Paul J.; Pittaway,Glenn D., Deriving a symmetric key from an asymmetric key for file encryption or decryption.
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  11. Adams, Carlisle; Jourdan, Guy-Vincent, Digital signature authentication without a certification authority.
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  12. Dundas, Alan; Herskedal, Eirik; Harning, Thomas; Diers, Aaron, Dynamic framework for certificate application configuration.
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  13. Kwan, Nang Kon; Magne, John, Guided enrollment and login for token users.
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  14. Watkins,Robert G., Identifying unauthorized communication systems using a system-specific identifier.
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  15. Felsher, David Paul, Information record infrastructure, system and method.
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  16. Palmer, David W., Method and apparatus to reduce the risk of observation of a secret value used by an instruction sequence.
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  17. Ju, Hak-soo; Kim, Myung-sun; Moon, Ji-young, Method and devices for reproducing encrypted content and approving reproduction.
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  18. Parkinson, Steven William; Kwan, Nang Kon, Method and system for issuing a kill sequence for a token.
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  19. Dundas, Alan; Herskedal, Eirik, Method and system for smartcard emulation.
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  20. Ho, Shuk Yee; Fu, Christina; Kannan, Chandrasekar; Kwan, Nang Kon, Methods and system for a key recovery plan.
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  21. Lord, Robert; Parkinson, Steven W.; Relyea, Robert, Methods and systems for assigning roles on a token.
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  22. Parkinson, Steven William; Lord, Robert B., Methods and systems for entropy collection for server-side key generation.
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  23. Fu, Christina; Kwan, Nang Kon; Parkinson, Steven William; Relyea, Robert, Methods and systems for key recovery for a token.
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  24. Kwan, Nang Kon; Kannan, Chandrasekar; Ho, Shuk Yee; Parkinson, Steven William, Methods and systems for managing identity management security domains.
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  25. Relyea, Robert, Methods and systems for nonce generation in a token.
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  26. Relyea, Robert, Methods and systems for providing data objects on a token.
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  27. Relyea, Robert, Methods and systems for providing data objects on a token.
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  28. Parkinson, Steven William, Methods and systems for remote password reset using an authentication credential managed by a third party.
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  29. Fu, Christina; Parkinson, Steven William; Kwan, Nang Kon, Methods and systems for secure key delivery.
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  30. Relyea, Robert, Methods and systems for secure shared smartcard access.
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  31. Fu, Christina; Parkinson, Steven William; Kwan, Nang Kon, Methods and systems for server-side key generation.
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  32. Hoffberg, Steven M., Multifactorial optimization system and method.
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  33. Sandhu, Ravinderpal Singh; Schoppert, Brett Jason; Ganesan, Ravi; Bellare, Mihir; deSa, Colin Joseph, Multiple factor private portion of an asymmetric key.
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  34. Tamblyn, Eric; Lum, Henry; Filonov, Vladimir; Culbert, Jeffrey; Blander, Daniel; Subramaniam, Somasundaram; Cicchitto, Angelo; Gvildys, Paul, Network recording and speech analytics system and method.
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  35. Sandhu,Ravi; deSa,Colin; Ganesan,Karuna, One time password entry to access multiple network sites.
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  36. Relyea, Robert, Organizing an extensible table for storing cryptographic objects.
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  37. Kwan, Nang Kon; Kannan, Chandrasekar; Ho, Shuk Yee; Parkinson, Steven William; Fu, Christina, Profile framework for token processing system.
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  38. Parkinson, Steven William, Reducing a size of a security-related data object stored on a token.
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  39. Sandhu, Ravinderpal Singh; Schoppert, Brett Jason; Ganesan, Ravi; Bellare, Mihir; deSa, Colin Joseph, Roaming utilizing an asymmetric key pair.
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  40. Sandhu, Ravinderpal Singh; Schoppert, Brett Jason; Ganesan, Ravi; Bellare, Mihir; deSa, Colin Joseph, Securing multifactor split key asymmetric crypto keys.
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  41. Fu, Christina; Parkinson, Steven W.; Kwan, Nang Kon, Server-side key generation.
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  42. Chang, Boick; Lim, Seungtaek; Hong, Sungsuk, Shared key transmission apparatus, automatic teller machine, automatic teller system and method of controlling the automatic teller machine.
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  43. Lord, Robert B.; Parkinson, Steven William, Smartcard formation with authentication.
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  44. Parkinson, Steven William; Lord, Robert B., Smartcard formation with authentication keys.
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  45. Relyea, Robert, Strong encryption.
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  46. Sandhu, Ravi; deSa, Colin; Ganesan, Karuna, System and method for crypto-key generation and use in cryptosystem.
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  47. Hoffberg, Steven M., System and method for determining contingent relevance.
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  48. Lum, Henry R.; Filonov, Vladimir; Culbert, Jeffrey; Blander, Daniel; Subramaniam, Somasundaram; Cicchitto, Angelo; Gvildys, Paul, System and method for encrypting and recording media for a contact center.
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  49. Lum, Henry R.; Filonov, Vladimir; Culbert, Jeffrey; Blander, Daniel; Subramaniam, Somasundaram; Cicchitto, Angelo; Gvildys, Paul, System and method for geo-location based media recording for a contact center.
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  50. Lum, Henry R.; Filonov, Vladimir; Culbert, Jeffrey; Blander, Daniel; Subramaniam, Somasundaram; Cicchitto, Angelo; Gvildys, Paul, System and method for geo-location based media recording for a contact center.
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  51. Lum, Henry; Filonov, Vladimir; Culbert, Jeffrey; Blander, Daniel; Subramaniam, Somasundaram; Cicchitto, Angelo; Gvildys, Paul, System and method for handling call recording failures for a contact center.
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  52. Hoffberg, Steven M., System and method for incentivizing participation in a market transaction.
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  53. Hoffberg, Steven M., System and method for providing a payment to a non-winning auction participant.
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  54. Felsher, David P.; Nagel, Robert H.; Hoffberg, Steven M., System and method for secure three-party communications.
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  55. Felsher, David P.; Nagel, Robert H.; Hoffberg, Steven M., System and method for secure three-party communications.
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  56. Nagel,Robert H.; Felsher,David P.; Hoffberg,Steven M., System and method for secure three-party communications.
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  57. Cok, Ronald S., System for secure distribution and playback of digital data.
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  58. Sandhu, Ravinderpal Singh; Schoppert, Brett Jason; Ganesan, Ravi; Bellare, Mihir; deSa, Colin Joseph, Technique for asymmetric crypto-key generation.
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  59. Sandhu, Ravinderpal Singh; Schoppert, Brett Jason; Ganesan, Ravi; Bellare, Mihir; deSa, Colin Joseph, Technique for providing multiple levels of security.
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  60. Relyea, Robert; Lord, Robert B.; Parkinson, Steven William, Time-based function back-off.
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  61. Lord, Robert B.; Relyea, Robert; Kwan, Nang Kon, Token Registration.
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  62. Lord, Robert, Token recycling.
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