CA2450584A1 - Certificate management and transfer system and method - Google Patents

Certificate management and transfer system and method Download PDF

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Publication number
CA2450584A1
CA2450584A1 CA002450584A CA2450584A CA2450584A1 CA 2450584 A1 CA2450584 A1 CA 2450584A1 CA 002450584 A CA002450584 A CA 002450584A CA 2450584 A CA2450584 A CA 2450584A CA 2450584 A1 CA2450584 A1 CA 2450584A1
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Canada
Prior art keywords
messaging client
certs
cert
store
communications
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Granted
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CA002450584A
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French (fr)
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CA2450584C (en
Inventor
Herbert A. Little
Neil P. Adams
David P. Tapuska
Michael S. Brown
Michael G. Kirkup
James A. Godfrey
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BlackBerry Ltd
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Individual
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Priority to CA2717229A priority Critical patent/CA2717229A1/en
Publication of CA2450584A1 publication Critical patent/CA2450584A1/en
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Publication of CA2450584C publication Critical patent/CA2450584C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/10—Office automation; Time management
    • G06Q10/107—Computer-aided management of electronic mailing [e-mailing]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/58—Message adaptation for wireless communication
    • 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
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/062—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
    • 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
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H04W12/041—Key generation or derivation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H04W12/047—Key management, e.g. using generic bootstrapping architecture [GBA] without using a trusted network node as an anchor
    • H04W12/0471—Key exchange
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/10—Integrity
    • H04W12/106—Packet or message integrity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • 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
    • H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/0272—Virtual private networks
    • 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
    • H04L63/0442—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 asymmetric encryption, i.e. different keys for encryption and decryption
    • 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
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H04L63/101—Access control lists [ACL]
    • 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
    • H04L63/12—Applying verification of the received information
    • H04L63/126—Applying verification of the received information the source of the received data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Abstract

A method and system for Certificate management and transfer between messaging clients are disclosed. When communications are established between a first messaging client and a second messaging client, one or more Certificates stored of the first messaging client may be selected and transferred to the second messaging client. Messaging clients may thereby share Certificates.
Certificate management functions such as Certificate deletions, Certificate updates and Certificate status checks may also be provided.

Claims (33)

1. ~A method of Certificate (Cert) management and transfer between a first messaging client and a second messaging client, the method comprising the steps of:~
establishing communications between the first messaging client and the second messaging client;
selecting one or more Certs stored on the first messaging client for transfer to the second messaging client; and transferring the selected Certs from the first messaging client to the second messaging client.
2. ~The method of claim 1, wherein:
the step of establishing communications between the first messaging client and the second messaging client comprises establishing communications via a communications link; and the communications link is selected from the group consisting of: a physical communications link and a wireless communications link.
3. ~The method of claim 1, wherein the step of selecting one or more Certs stored on the first messaging client comprises the steps of:
generating a list of Certs stored on the first messaging client;
displaying the generated list of Certs; and selecting the one or more Certs from the displayed list.
4. ~The method of claim 3, wherein:
the step of displaying comprises displaying the generated list on the first messaging client; and the step of selecting comprises selecting the one or more Certs from the displayed list via a user interface associated with the first messaging client.
5. ~The method of claim 3, wherein:
the step of displaying comprises displaying the generated list on the second messaging client; and the step of selecting comprises selecting the one or more Certs from the displayed list via a user interface associated with the second messaging client.
6. ~The method of claim 3, wherein the step of generating comprises the steps of:
identifying the Certs that are stored at the first messaging client;
identifying the Certs that are stored at the second messaging client; and generating a list of the Certs that are stored only at the first messaging client and not at the second messaging client.
7. ~The method of claim 1, further comprising the step of storing the selected Certs in a data store on the second messaging client.
8. ~The method of claim 7, further comprising the steps, after the step of establishing communications, of:
at the first messaging client:

checking the status of each Cert stored in the data store to detect expired, revoked or invalid Certs in the data store;
retrieving, at the first messaging client, a new Cert for each detected expired, revoked or invalid Cert in the data store; and transferring each new Cert from the first messaging client to the second messaging client.
9. The method of claim 8, further comprising the step, after the step of checking, of prompting a user when an expired, revoked or invalid Cert is detected, wherein the steps of retrieving and transferring are responsive to an input from the user.
10. The method of claim 8, wherein the step of retrieving comprises retrieving a new Cert from a Public Key Server (PKS).
11. The method of claim 1, further comprising the steps of:
selecting one or more Certs stored on the second messaging client for transfer to the first messaging client; and transferring the selected one or more Certs stored on the second messaging client from the second messaging client to the first messaging client.
12. The method of claim 11, wherein:
the step of selecting one or more Certs stored on the first messaging client comprises the steps of:
generating a list of Certs stored on the first messaging client;

displaying the generated list of Certs on the first messaging client; and selecting the one or more Certs from the displayed list via a user interface associated with the first messaging client; and the step of selecting one or more Certs stored on the second messaging client comprises the steps of:
generating a list of Certs stored on the second messaging client;
displaying the generated list of Certs on the first messaging client; and selecting the one or more Certs from the displayed list via a user interface associated with the first messaging client.
13. The method of claim 1, further comprising the steps of:
generating a list of Certs stored in a data store on the second messaging client;
displaying the generated list of Certs on the first messaging client;
selecting for deletion from the data store one or more Certs from the displayed list via a user interface associated with the first messaging client; and deleting the selected one or more Certs from the data store on the second messaging client.
14. The method of claim 1, wherein the first messaging client and the second messaging client are each selected from the group consisting of: a desktop computer system, a laptop computer system, and a wireless mobile communication device.
15. A system for Certificate (Cert) management and transfer between a first messaging client and a second messaging client, the system comprising:

at the first messaging client:
a first memory comprising a first Cert store configured to store Certs;
a first Cert synchronization (sync) system configured to access the first Cert store; and a first communications interface; and at the second messaging client:
a second memory comprising a second Cert store configured to store Certs;
a second Cert sync system configured to access the second Cert store;
and a second communications interface compatible with the first communications interface, wherein the first Cert sync system is further configured to transfer Certs stored in the first Cert store from the first messaging client to the second messaging client when a communications link is established between the first messaging client and the second messaging client via the first communications interface and the second communications interface.
16. The system of claim 15, wherein the second Cert sync system is further configured to store Certs transferred from the first messaging client to the second messaging client to the second Cert store.
17. The system of claim 16, further comprising a user interface at the first messaging client, the user interface being configured to accept user inputs to select one or more of the Certs stored in the first Cert store, wherein the selected Certs are transferred from the first messaging client to the second messaging client.
18. The system of claim 17, wherein the second Cert sync system is further configured to transfer Certs stored in the second Cert store from the second messaging client to the first messaging client when a communications link is established between the first messaging client and the second messaging client via the first communications interface and the second communications interface.
19. The system of claim 18, wherein the user interface at the first messaging client is further configured to accept user inputs to select one or more of the Certs stored in the second Cert store, wherein the selected Certs are transferred from the second messaging client to the first messaging client.
20. The system of claim 15, wherein the first Cert sync system is further configured to check the status of each Cert stored in the second Cert store to detect expired, invalid or revoked Certs stored in the second Cert store.
21. The system of claim 20, wherein the first Cert sync system is further configured to retrieve a new Cert for each detected expired, invalid or revoked Cert in the second Cert store and to transfer each new Cert from the first messaging client to the second messaging client via the communications link.
22. The system of claim 15, wherein the first messaging client and the second messaging client are each selected from the group consisting of: a desktop computer system, a laptop computer system, and a wireless mobile communication device.
23. The system of claim 15, wherein at least one of the first messaging client and the second messaging client is a wireless mobile communication device selected from the group consisting of: a data communication device, a voice communication device, a dual-mode communication device having both data and voice communications functionality, a cellular telephone having data communications functionality, a personal digital assistant (PDA) enabled for wireless communications, and a laptop or desktop computer system with a wireless modem.
24. The system of claim 15, further comprising:
at the first messaging client:
a first messaging system; and a first communications subsystem; and at the second messaging client:
a second messaging system; and a second communications subsystem, wherein the first messaging system is configured to store Certs received via the first communications subsystem to the first Cert store and the second messaging system is configured to store Certs received via the second communications subsystem to the second Cert store.
25. The system of claim 15, wherein the first communications interface and the second communications interface establish a physical link between the first messaging client and the second messaging client.
26. The system of claim 25, wherein the first communications interface and the second communications interface are selected from the group consisting of:
serial ports and Universal Serial Bus (USB) ports.
27. The system of claim 15, wherein the first communications interface and the second communications interface establish a wireless link between the first messaging client and the second messaging client.
28. The system of claim 25, wherein the first communications interface and the second communications interface are selected from the group consisting of:
Infrared Data Association (IrDA) ports, Bluetooth modules and 802.11 modules.
29. A system for transferring Certificates (Certs) between a computer system and a wireless mobile communication device, the system comprising:
a serial port associated with the computer system;
a mobile device cradle connected to the serial port, the mobile device cradle having an interface; and a mobile device interface associated with the wireless mobile communication device and compatible with the interface of the mobile device cradle, wherein Certs stored at the computer system are transferred to the wireless mobile communication device when a communications link is established between the computer system and the wireless mobile communication device by placing the wireless mobile communication device in the mobile device cradle.
30. A wireless mobile communication device comprising:
a wireless transceiver;
a messaging system coupled to the wireless transceiver;
a communications interface;
a Cert store configured to store Certificates (Certs); and a Cert synchronization (sync) system coupled to the Cert store and the communications interface, wherein the messaging system is configured to store Certs received via the wireless transceiver to the Cert store, and the Cert sync system is configured to store Certs received via the communications interface to the Cert store.
31. The wireless mobile communication device of claim 30, wherein the messaging system is further configured to request Certs from a Public Key Server (PKS).
32. The wireless mobile communication device of claim 30, wherein the communications interface is selected from the group consisting of: a serial port, a Universal Serial Bus (USB) port, and Infrared Data Association (IrDA) port, a Bluetooth module and an 802.11 module.
33. The system of claim 30, wherein the wireless mobile communication device is selected from the group consisting of: a data communication device, a voice communication device, a dual-mode communication device having both data and voice communications functionality, a cellular telephone having data communications functionality, a personal digital assistant (PDA) enabled for wireless communications, and a laptop or desktop computer system with a wireless modem.
CA2450584A 2001-06-12 2002-06-12 Certificate management and transfer system and method Expired - Lifetime CA2450584C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2717229A CA2717229A1 (en) 2001-06-12 2002-06-12 Certificate management and transfer system and method

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US29768101P 2001-06-12 2001-06-12
US60/297,681 2001-06-12
US36553302P 2002-03-20 2002-03-20
US60/365,533 2002-03-20
PCT/CA2002/000868 WO2002101580A1 (en) 2001-06-12 2002-06-12 Certificate management and transfer system and method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2717229A Division CA2717229A1 (en) 2001-06-12 2002-06-12 Certificate management and transfer system and method

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CA2450584A1 true CA2450584A1 (en) 2002-12-19
CA2450584C CA2450584C (en) 2011-01-04

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CA2717229A Abandoned CA2717229A1 (en) 2001-06-12 2002-06-12 Certificate management and transfer system and method

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US (4) US7546453B2 (en)
EP (1) EP1399853A1 (en)
JP (2) JP2004532590A (en)
KR (1) KR20040015272A (en)
CN (1) CN100410927C (en)
CA (2) CA2450584C (en)
IL (2) IL159342A0 (en)
WO (1) WO2002101580A1 (en)

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WO2002101580A1 (en) 2002-12-19
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US8015400B2 (en) 2011-09-06
US20040171369A1 (en) 2004-09-02

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