WO2001069843A3 - Method and system for coordinating secure transmission of information - Google Patents

Method and system for coordinating secure transmission of information Download PDF

Info

Publication number
WO2001069843A3
WO2001069843A3 PCT/US2001/007767 US0107767W WO0169843A3 WO 2001069843 A3 WO2001069843 A3 WO 2001069843A3 US 0107767 W US0107767 W US 0107767W WO 0169843 A3 WO0169843 A3 WO 0169843A3
Authority
WO
WIPO (PCT)
Prior art keywords
recipient
session key
sender
information
party
Prior art date
Application number
PCT/US2001/007767
Other languages
French (fr)
Other versions
WO2001069843A2 (en
Inventor
Tony Mcnamara
Original Assignee
Absolutefuture Inc
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 Absolutefuture Inc filed Critical Absolutefuture Inc
Priority to AU2001250824A priority Critical patent/AU2001250824A1/en
Publication of WO2001069843A2 publication Critical patent/WO2001069843A2/en
Publication of WO2001069843A3 publication Critical patent/WO2001069843A3/en

Links

Classifications

    • 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)
    • H04L9/0825—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) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
    • 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]

Abstract

A method and system for coordinating transmission between a sender and a recipient. In one embodiment, a third party coordinates the distribution of session keys (e.g., symmetric keys) for sender and recipient. A sender computer may generate a session key, encrypt it using a public key of the recipient, and send the encrypted session key to the third party. The third party then forwards the session key to the recipient computer. Upon receiving the session key, the recipient computer decrypts the session key so that the sender and recipient can communicate using a message encrypted with the session key.
PCT/US2001/007767 2000-03-10 2001-03-12 Method and system for coordinating secure transmission of information WO2001069843A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001250824A AU2001250824A1 (en) 2000-03-10 2001-03-12 Method and system for coordinating secure transmission of information

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18865700P 2000-03-10 2000-03-10
US60/188,657 2000-03-10

Publications (2)

Publication Number Publication Date
WO2001069843A2 WO2001069843A2 (en) 2001-09-20
WO2001069843A3 true WO2001069843A3 (en) 2003-11-06

Family

ID=22694039

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/007767 WO2001069843A2 (en) 2000-03-10 2001-03-12 Method and system for coordinating secure transmission of information

Country Status (2)

Country Link
AU (1) AU2001250824A1 (en)
WO (1) WO2001069843A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN101479984B (en) 2006-04-25 2011-06-08 斯蒂芬·L.·博伦 Dynamic distributed key system and method for identity management, authentication servers, data security and preventing man-in-the-middle attacks
CN101272240B (en) * 2007-03-21 2013-01-23 华为技术有限公司 Conversation cryptographic key generation method, system and communication equipment
EP3036680B1 (en) * 2013-08-21 2018-07-18 Intel Corporation Processing data privately in the cloud
US10057263B2 (en) 2016-03-01 2018-08-21 Cay JEGLINSKI Application management system
CN109377215B (en) 2018-08-06 2020-04-21 阿里巴巴集团控股有限公司 Block chain transaction method and device and electronic equipment
SG11201902778UA (en) 2018-11-27 2019-05-30 Alibaba Group Holding Ltd System and method for information protection
ES2833552T3 (en) 2018-11-27 2021-06-15 Advanced New Technologies Co Ltd System and method for the protection of information
ES2881674T3 (en) 2018-11-27 2021-11-30 Advanced New Technologies Co Ltd System and method for the protection of information
CN110337665B (en) 2018-11-27 2023-06-06 创新先进技术有限公司 System and method for information protection
CN111953582B (en) * 2020-08-10 2022-03-25 四川阵风科技有限公司 Encryption instant messaging method and system based on hardware device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5124117A (en) * 1989-08-07 1992-06-23 Matsushita Electric Industrial Co., Ltd. Cryptographic key distribution method and system
US5850444A (en) * 1996-09-09 1998-12-15 Telefonaktienbolaget L/M Ericsson (Publ) Method and apparatus for encrypting radio traffic in a telecommunications network
WO2001030016A2 (en) * 1999-10-01 2001-04-26 Ecomxml Inc. A method for non-repudiation using a trusted third party

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5124117A (en) * 1989-08-07 1992-06-23 Matsushita Electric Industrial Co., Ltd. Cryptographic key distribution method and system
US5850444A (en) * 1996-09-09 1998-12-15 Telefonaktienbolaget L/M Ericsson (Publ) Method and apparatus for encrypting radio traffic in a telecommunications network
WO2001030016A2 (en) * 1999-10-01 2001-04-26 Ecomxml Inc. A method for non-repudiation using a trusted third party

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LEIGHTON T ET AL: "SECRET-KEY AGREEMENT WITHOUT PUBLIC-KEY CRYPTOGRAPHY (EXTENDED ABSTRACT)", ADVANCES IN CRYPTOLOGY (CRYPTO). SANTA BARBARA, AUG. 22 - 26, 1993, PROCEEDINGS OF THE ANNUAL INTERNATIONAL CRYPTOLOGY CONFERENCE (CRYPTO), BERLIN, SPRINGER, DE, vol. CONF. 13, 22 August 1993 (1993-08-22), pages 456 - 479, XP000502371, ISBN: 3-540-57766-1 *
MENEZES, VAN OORSCHOT, VANSTONE: "Handbook of applied cryptography", CRC PRESS, BOCA RATON, XP002252577 *

Also Published As

Publication number Publication date
AU2001250824A1 (en) 2001-09-24
WO2001069843A2 (en) 2001-09-20

Similar Documents

Publication Publication Date Title
WO2001097432A3 (en) Secure messaging system with return receipts
WO2002101974A8 (en) Secure ephemeral decryptability
AU2002252034A1 (en) System and method for message encryption and signing in a transaction processing system
WO2002032044A3 (en) Secret key messaging
WO2001078491A3 (en) Systems and methods for encrypting/decrypting data using a broker agent
AU2003258091A1 (en) Method and apparatus for secure e-mail
WO2001097440A3 (en) Encryption system that dynamically locates keys
WO1997041661A3 (en) Use of an encryption server for encrypting messages
EP0841770A3 (en) Method for sending a secure message in a telecommunications system
CA2394451A1 (en) System, method and computer product for delivery and receipt of s/mime-encrypted data
WO2001041353A3 (en) Method and apparatus for sending encrypted electronic mail through a distribution list exploder
WO2005010732A3 (en) Identity-based-encryption messaging system
HK1065193A1 (en) Authentification of a user across communication sessions
AU2003240114A1 (en) Storage and authentication of data transactions
EP1249964A3 (en) Reception terminal, key management apparatus, and key updating method for public key cryptosystem
WO2005001629A3 (en) Encryption system with public parameter host servers
WO2005040975A3 (en) Identity-based-encryption system with district policy information
EP0720326A3 (en) Method for secure session key generation
MY128376A (en) Authentication of date transmitted in a digital transmission system
CA2278670A1 (en) Encryption and decryption method and apparatus
WO2002033881A3 (en) Fast escrow delivery
GB0804754D0 (en) Secure data transmission
EP0661845A3 (en) System and method for message authentication in a non-malleable public-key cryptosystem
WO2000070809A3 (en) Method of and system for encrypting messages, generating encryption keys and producing secure session keys
WO2001069843A3 (en) Method and system for coordinating secure transmission of information

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP