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WO2001078491A3 - Systems and methods for encrypting/decrypting data using a broker agent - Google Patents

Systems and methods for encrypting/decrypting data using a broker agent

Info

Publication number
WO2001078491A3
WO2001078491A3 PCT/US2001/012157 US0112157W WO0178491A3 WO 2001078491 A3 WO2001078491 A3 WO 2001078491A3 US 0112157 W US0112157 W US 0112157W WO 0178491 A3 WO0178491 A3 WO 0178491A3
Authority
WO
WIPO (PCT)
Prior art keywords
methods
systems
broker agent
encrypting
decrypting data
Prior art date
Application number
PCT/US2001/012157
Other languages
French (fr)
Other versions
WO2001078491A2 (en
Inventor
Rajamadam C Venkatraman
Unmesh Sahasrabauddhe
Steven Short
Ashish Warty
Original Assignee
Postx Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Postx Corp filed Critical Postx Corp
Priority to EP01928518A priority Critical patent/EP1273125A2/en
Priority to AU2001255366A priority patent/AU2001255366A1/en
Publication of WO2001078491A2 publication Critical patent/WO2001078491A2/en
Publication of WO2001078491A3 publication Critical patent/WO2001078491A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/045—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0464—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload using hop-by-hop encryption, i.e. wherein an intermediate entity decrypts the information and re-encrypts it before forwarding it
    • 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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer And Data Communications (AREA)
  • Storage Device Security (AREA)

Abstract

The present invention relates to systems and methods for providing secure symmetric and asymmetric encryption/decryption using an intermediate or broker agent. The broker agent (i.e., a server) is used to encrypt and decrypt data and/or session key during the transmission of the data from the sender to the recipient. These encryption processes are more secure because the recipients do not have access to the sender's private and public keys. The first and second embodiment relate to symmetric encryption/decryption systems and methods, while the third and fourth embodiments relate to asymmetric encryption/decryption systems and methods.
PCT/US2001/012157 2000-04-14 2001-04-12 Systems and methods for encrypting/decrypting data using a broker agent WO2001078491A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01928518A EP1273125A2 (en) 2000-04-14 2001-04-12 Systems and methods for encrypting/decrypting data using a broker agent
AU2001255366A AU2001255366A1 (en) 2000-04-14 2001-04-12 Systems and methods for encrypting/decrypting data

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54944600A 2000-04-14 2000-04-14
US09/549,446 2000-04-14

Publications (2)

Publication Number Publication Date
WO2001078491A2 WO2001078491A2 (en) 2001-10-25
WO2001078491A3 true WO2001078491A3 (en) 2002-03-14

Family

ID=24193060

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/012157 WO2001078491A2 (en) 2000-04-14 2001-04-12 Systems and methods for encrypting/decrypting data using a broker agent

Country Status (3)

Country Link
EP (1) EP1273125A2 (en)
AU (1) AU2001255366A1 (en)
WO (1) WO2001078491A2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE45087E1 (en) 2001-06-12 2014-08-19 Blackberry Limited Certificate management and transfer system and method
US8862129B2 (en) 2006-05-25 2014-10-14 Celltrust Corporation Systems and methods for encrypted mobile voice communications
US8898473B2 (en) 2001-06-12 2014-11-25 Blackberry Limited System and method for compressing secure E-mail for exchange with a mobile data communication device
US8943156B2 (en) 2006-06-23 2015-01-27 Blackberry Limited System and method for handling electronic mail mismatches
US8965416B2 (en) 2006-05-25 2015-02-24 Celltrust Corporation Distribution of lottery tickets through mobile devices
US9154612B2 (en) 2006-05-25 2015-10-06 Celltrust Corporation Secure mobile information management system and method
US9172540B2 (en) 2001-06-12 2015-10-27 Blackberry Limited System and method for processing encoded messages for exchange with a mobile data communication device
US9398023B2 (en) 2004-08-10 2016-07-19 Blackberry Limited Server verification of secure electronic messages
US9572033B2 (en) 2006-05-25 2017-02-14 Celltrust Corporation Systems and methods for encrypted mobile voice communications

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020131599A1 (en) * 2001-03-15 2002-09-19 International Business Machines Corporation System for encryption of wireless transmissions from personal palm computers to world wide Web terminals
EP1410601B1 (en) 2001-07-10 2017-02-08 BlackBerry Limited System and method for secure message key caching in a mobile communication device
WO2003015367A2 (en) 2001-08-06 2003-02-20 Research In Motion Limited System and method for processing encoded messages
US20030140257A1 (en) * 2002-01-22 2003-07-24 Petr Peterka Encryption, authentication, and key management for multimedia content pre-encryption
US7383218B1 (en) 2002-07-31 2008-06-03 Charles Schwab & Co., Inc. Method and system for integrating investment advice with financial account statement information
US7860774B1 (en) 2003-10-31 2010-12-28 Charles Schwab & Co., Inc. System and method for providing financial advice for an investment portfolio
US20050182933A1 (en) * 2004-02-03 2005-08-18 Derek Ritz Method and system for document transmission
US20050210246A1 (en) * 2004-03-16 2005-09-22 Eastman Kodak Company Secure email 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
US9497172B2 (en) 2005-05-23 2016-11-15 Litera Corp. Method of encrypting and transferring data between a sender and a receiver using a network
US7953971B2 (en) 2005-10-27 2011-05-31 Research In Motion Limited Synchronizing certificates between a device and server
US8191105B2 (en) 2005-11-18 2012-05-29 Research In Motion Limited System and method for handling electronic messages
US8355701B2 (en) 2005-11-30 2013-01-15 Research In Motion Limited Display of secure messages on a mobile communication device
US7840207B2 (en) 2005-11-30 2010-11-23 Research In Motion Limited Display of secure messages on a mobile communication device
US9848081B2 (en) 2006-05-25 2017-12-19 Celltrust Corporation Dissemination of real estate information through text messaging
US7949355B2 (en) 2007-09-04 2011-05-24 Research In Motion Limited System and method for processing attachments to messages sent to a mobile device
SG189710A1 (en) * 2008-03-28 2013-05-31 Celltrust Corp Systems and methods for secure short messaging service and multimedia messaging service
CN102281303A (en) * 2011-08-31 2011-12-14 北京海泰方圆科技有限公司 Data exchange method
GB2508606B (en) 2012-12-04 2015-06-03 Barclays Bank Plc Credential recovery
US10789594B2 (en) 2013-01-31 2020-09-29 Moshir Vantures, Limited, LLC Method and system to intelligently assess and mitigate security risks on a mobile device
CN106936759A (en) * 2015-12-29 2017-07-07 航天信息股份有限公司 A kind of single-point logging method, server and client
ITUB20160619A1 (en) * 2016-02-10 2017-08-10 Prb S R L METHOD OF PROTECTION OF ELECTRONIC DOCUMENTS IN AN ARCHIVE AND CONSERVATION DEVICE FOR ENCRYPTION KEYS.
WO2018109529A1 (en) * 2016-12-15 2018-06-21 Smart Security Systems Sa Method and system for securely pairing two or more devices
US20220294610A1 (en) * 2021-03-10 2022-09-15 Epifi Technologies Private Limited Methods, systems and computer program products for secure encryption of data for transmission via an untrusted intermediary

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5751813A (en) * 1996-04-29 1998-05-12 Motorola, Inc. Use of an encryption server for encrypting messages
US5812671A (en) * 1996-07-17 1998-09-22 Xante Corporation Cryptographic communication system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5751813A (en) * 1996-04-29 1998-05-12 Motorola, Inc. Use of an encryption server for encrypting messages
US5812671A (en) * 1996-07-17 1998-09-22 Xante Corporation Cryptographic communication system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MENEZES, OORSCHOT, VANSTONE: "HANDBOOK OF APPLIED CRYPTOGRAPHY", HANDBOOK OF APPLIED CRYPTOGRAPHY, XX, XX, October 1996 (1996-10-01), XP002182401 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE45087E1 (en) 2001-06-12 2014-08-19 Blackberry Limited Certificate management and transfer system and method
US8898473B2 (en) 2001-06-12 2014-11-25 Blackberry Limited System and method for compressing secure E-mail for exchange with a mobile data communication device
US9172540B2 (en) 2001-06-12 2015-10-27 Blackberry Limited System and method for processing encoded messages for exchange with a mobile data communication device
US9398023B2 (en) 2004-08-10 2016-07-19 Blackberry Limited Server verification of secure electronic messages
US8862129B2 (en) 2006-05-25 2014-10-14 Celltrust Corporation Systems and methods for encrypted mobile voice communications
US8965416B2 (en) 2006-05-25 2015-02-24 Celltrust Corporation Distribution of lottery tickets through mobile devices
US9154612B2 (en) 2006-05-25 2015-10-06 Celltrust Corporation Secure mobile information management system and method
US9572033B2 (en) 2006-05-25 2017-02-14 Celltrust Corporation Systems and methods for encrypted mobile voice communications
US8943156B2 (en) 2006-06-23 2015-01-27 Blackberry Limited System and method for handling electronic mail mismatches

Also Published As

Publication number Publication date
EP1273125A2 (en) 2003-01-08
AU2001255366A1 (en) 2001-10-30
WO2001078491A2 (en) 2001-10-25

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