JPH1195659A5 - - Google Patents

Info

Publication number
JPH1195659A5
JPH1195659A5 JP1998184479A JP18447998A JPH1195659A5 JP H1195659 A5 JPH1195659 A5 JP H1195659A5 JP 1998184479 A JP1998184479 A JP 1998184479A JP 18447998 A JP18447998 A JP 18447998A JP H1195659 A5 JPH1195659 A5 JP H1195659A5
Authority
JP
Japan
Prior art keywords
key
recipient
session key
encrypted
trusted party
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.)
Abandoned
Application number
JP1998184479A
Other languages
English (en)
Japanese (ja)
Other versions
JPH1195659A (ja
Filing date
Publication date
Priority claimed from US08/885,018 external-priority patent/US6775382B1/en
Application filed filed Critical
Publication of JPH1195659A publication Critical patent/JPH1195659A/ja
Publication of JPH1195659A5 publication Critical patent/JPH1195659A5/ja
Abandoned legal-status Critical Current

Links

JP10184479A 1997-06-30 1998-06-30 暗号セッションキーの回復方法と装置 Abandoned JPH1195659A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/885,018 US6775382B1 (en) 1997-06-30 1997-06-30 Method and apparatus for recovering encryption session keys
US885018 1997-06-30

Publications (2)

Publication Number Publication Date
JPH1195659A JPH1195659A (ja) 1999-04-09
JPH1195659A5 true JPH1195659A5 (enExample) 2005-10-20

Family

ID=25385941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10184479A Abandoned JPH1195659A (ja) 1997-06-30 1998-06-30 暗号セッションキーの回復方法と装置

Country Status (4)

Country Link
US (1) US6775382B1 (enExample)
EP (1) EP0889617A3 (enExample)
JP (1) JPH1195659A (enExample)
CA (1) CA2240880A1 (enExample)

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EP1037436A1 (de) * 1999-03-17 2000-09-20 Ascom Systec AG Kryptographisch gesicherte Stellvertretung in E-Mailsystemen
US7499551B1 (en) * 1999-05-14 2009-03-03 Dell Products L.P. Public key infrastructure utilizing master key encryption
GB2350981A (en) * 1999-06-11 2000-12-13 Int Computers Ltd Cryptographic key recovery
US6725381B1 (en) * 1999-08-31 2004-04-20 Tumbleweed Communications Corp. Solicited authentication of a specific user
US7085931B1 (en) 1999-09-03 2006-08-01 Secure Computing Corporation Virtual smart card system and method
DE19946127A1 (de) * 1999-09-20 2001-04-12 Deutsche Telekom Ag Verfahren zur Entschlüsselung von mit einem hybriden Verschlüsselungsverfahren verschlüsselten Dokumenten nach Verlust des privaten kryptografischen Schlüssels
US6965881B1 (en) * 2000-04-24 2005-11-15 Intel Corporation Digital credential usage reporting
US6986046B1 (en) 2000-05-12 2006-01-10 Groove Networks, Incorporated Method and apparatus for managing secure collaborative transactions
DE10025626A1 (de) * 2000-05-24 2001-11-29 Deutsche Telekom Ag Verschlüsseln von abzuspeichernden Daten in einem IV-System
AU2001271302A1 (en) * 2000-06-12 2001-12-24 Zendit Encryption system that dynamically locates keys
FR2813151B1 (fr) * 2000-08-18 2002-12-20 Schneider Electric Ind Sa Communication securisee dans un equipement d'automatisme
GB2367933B (en) * 2000-10-10 2002-10-23 F Secure Oyj Encryption
US7039803B2 (en) * 2001-01-26 2006-05-02 International Business Machines Corporation Method for broadcast encryption and key revocation of stateless receivers
US7043051B2 (en) 2001-02-21 2006-05-09 Lg Electronics Inc. Proprietary watermark system for secure digital media and content distribution
CN1303554C (zh) * 2001-03-08 2007-03-07 深圳市金大陆通信技术有限公司 增值税发票的开票、认证与查询方法及其信息管理系统
US7711122B2 (en) 2001-03-09 2010-05-04 Arcot Systems, Inc. Method and apparatus for cryptographic key storage wherein key servers are authenticated by possession and secure distribution of stored keys
US7058201B2 (en) * 2001-03-28 2006-06-06 Lg Electronics Inc. Method of embedding watermark into digital image
US8230018B2 (en) * 2001-05-08 2012-07-24 Intel Corporation Method and apparatus for preserving confidentiality of electronic mail
KR100493284B1 (ko) * 2001-05-11 2005-06-03 엘지전자 주식회사 디지털 미디어의 복제 제어 방법 및 시스템
DE10134489B4 (de) * 2001-06-27 2004-03-04 Mediasec Technologies Gmbh Asymmetrisches Kryptographieverfahren
JP2003078518A (ja) * 2001-09-03 2003-03-14 Fuji Xerox Co Ltd 暗号化・復号システム、暗号化装置、復号装置およびそれらの方法
JP2003244122A (ja) * 2002-02-14 2003-08-29 Sony Corp 情報処理システム、情報処理装置および方法、記録媒体、並びにプログラム
DE60211655D1 (de) * 2002-04-16 2006-06-29 Izecom B V Sichere Kommunikation über das Internet
US7356147B2 (en) * 2002-04-18 2008-04-08 International Business Machines Corporation Method, system and program product for attaching a title key to encrypted content for synchronized transmission to a recipient
US7412059B1 (en) * 2002-11-27 2008-08-12 Voltage Security, Inc. Public-key encryption system
US7587051B2 (en) * 2003-01-13 2009-09-08 Denis Bisson System and method for securing information, including a system and method for setting up a correspondent pairing
CN1607589A (zh) * 2003-10-13 2005-04-20 皇家飞利浦电子股份有限公司 光盘、播放光盘的播放器及其播放方法
US7653816B2 (en) * 2003-12-30 2010-01-26 First Information Systems, Llc E-mail certification service
GB0411560D0 (en) * 2004-05-24 2004-06-23 Protx Group Ltd A method of encrypting and transferring data between a sender and a receiver using a network
GB2434947B (en) * 2006-02-02 2011-01-26 Identum Ltd Electronic data communication system
JP4251186B2 (ja) * 2006-02-23 2009-04-08 コニカミノルタビジネステクノロジーズ株式会社 情報処理装置、その制御プログラム、および、その制御方法
US8793768B2 (en) * 2006-04-11 2014-07-29 Medox Exchange, Inc. Relationship-based authorization
CN101064598B (zh) * 2006-04-28 2011-04-20 腾讯科技（深圳）有限公司 一种客户端即时通信数据的加密和解密方法
US8495380B2 (en) 2006-06-06 2013-07-23 Red Hat, Inc. Methods and systems for server-side key generation
JP4863777B2 (ja) * 2006-06-07 2012-01-25 富士通株式会社 通信処理方法及びコンピュータ・システム
JPWO2008156107A1 (ja) 2007-06-18 2010-08-26 日本電気株式会社 電子データの暗号化及び暗号化データ復号化システム及びその方法
US20090037729A1 (en) * 2007-08-03 2009-02-05 Lawrence Smith Authentication factors with public-key infrastructure
US8588425B1 (en) * 2007-12-27 2013-11-19 Emc Corporation Encryption key recovery in the event of storage management failure
US8856879B2 (en) 2009-05-14 2014-10-07 Microsoft Corporation Social authentication for account recovery
CA2759971A1 (en) * 2010-11-29 2012-05-29 Groupe Cgi Inc. Method for storing (hiding) a key in a table and corresponding method for retrieving the key from the table
US9698975B2 (en) 2012-02-15 2017-07-04 Blackberry Limited Key management on device for perimeters
EP2629227B1 (en) * 2012-02-15 2016-04-27 BlackBerry Limited Key management on device for perimeters
US9071429B1 (en) * 2013-04-29 2015-06-30 Amazon Technologies, Inc. Revocable shredding of security credentials
US9544135B2 (en) * 2013-08-02 2017-01-10 Issam ANDONI Methods of and systems for facilitating decryption of encrypted electronic information
US9438568B2 (en) * 2013-08-02 2016-09-06 Zeva Incorporated System and method for email and file decryption without direct access to required decryption key
US10567357B2 (en) * 2015-10-02 2020-02-18 Zixcorp Systems, Inc. Secure transmission system with upgraded encryption strength
US10805080B2 (en) * 2017-01-06 2020-10-13 Microsoft Technology Licensing, Llc Strong resource identity in a cloud hosted system
EP3709564B1 (en) * 2017-11-06 2023-03-22 Nippon Telegraph And Telephone Corporation Data sharing method, data sharing system, data sharing server, communication terminal, and program
US10819515B1 (en) 2018-03-09 2020-10-27 Wells Fargo Bank, N.A. Derived unique recovery keys per session
US11205194B2 (en) 2019-04-30 2021-12-21 Advanced New Technologies Co., Ltd. Reliable user service system and method
CN110086817B (zh) * 2019-04-30 2021-09-03 创新先进技术有限公司 可靠的用户服务系统和方法
DE102020204023A1 (de) 2020-03-27 2021-09-30 Siemens Mobility GmbH Verfahren zur Datenübermittlung und Kommunikationssystem

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US5142578A (en) * 1991-08-22 1992-08-25 International Business Machines Corporation Hybrid public key algorithm/data encryption algorithm key distribution method based on control vectors
US5436972A (en) * 1993-10-04 1995-07-25 Fischer; Addison M. Method for preventing inadvertent betrayal by a trustee of escrowed digital secrets
US5481613A (en) * 1994-04-15 1996-01-02 Northern Telecom Limited Computer network cryptographic key distribution system
US5557346A (en) * 1994-08-11 1996-09-17 Trusted Information Systems, Inc. System and method for key escrow encryption
US5557765A (en) 1994-08-11 1996-09-17 Trusted Information Systems, Inc. System and method for data recovery
JP3590143B2 (ja) * 1995-07-28 2004-11-17 株式会社東芝 電子メール転送装置
US5768373A (en) * 1996-05-06 1998-06-16 Symantec Corporation Method for providing a secure non-reusable one-time password
US5796830A (en) * 1996-07-29 1998-08-18 International Business Machines Corporation Interoperable cryptographic key recovery system

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