CA2475216A1 - Method and system for providing third party authentification of authorization - Google Patents

Method and system for providing third party authentification of authorization Download PDF

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Publication number
CA2475216A1
CA2475216A1 CA002475216A CA2475216A CA2475216A1 CA 2475216 A1 CA2475216 A1 CA 2475216A1 CA 002475216 A CA002475216 A CA 002475216A CA 2475216 A CA2475216 A CA 2475216A CA 2475216 A1 CA2475216 A1 CA 2475216A1
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CA
Canada
Prior art keywords
authentication
access information
key
service ticket
server
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.)
Granted
Application number
CA002475216A
Other languages
French (fr)
Other versions
CA2475216C (en
Inventor
Rafie Shamsaasef
Mangalore Geetha
Petr Peterka
Alexander Medvinsky
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Google Technology Holdings LLC
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2475216A1 publication Critical patent/CA2475216A1/en
Application granted granted Critical
Publication of CA2475216C publication Critical patent/CA2475216C/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
    • 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
    • H04L63/0807—Network architectures or network communication protocols for network security for authentication of entities using tickets, e.g. Kerberos
    • 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]
    • 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
    • H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
    • H04L9/0841—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving Diffie-Hellman or related key agreement protocols
    • 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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/321—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving a third party or a trusted authority
    • H04L9/3213—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving a third party or a trusted authority using tickets or tokens, e.g. Kerberos
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution

Abstract

A method and system (100) for providing third party authentication when requesting content and/or services from an application server (106). The method is applicable to key management protocols that utilize the concept of tickets. The method and system include a client (102) being coupled with a third party application server (107), wherein the client submits a request f or content from the third party application server and the third party application server returns requested information and corresponding authentication. The client further couples with a first application server (106), wherein the client submits a key request (KEY_REQ) including the thir d party server information and corresponding authentication to the first application server. The first application server authenticates the third par ty server information and verifies client authorization based on third party information. The first application server returns a key reply (KEY_REP) if t he third party server information is authenticated and client authorization is verified.

Claims (20)

1. A communication authorization method, comprising the steps of:
receiving a request for access information to access content;
generating the access information to access the desired content from a first application server;
generating authentication of the access information using a first service ticket;
and sending the access information and authentication to a client.
2. The method as claimed in claim 1, wherein the step of generating authentication including generating a third party server signature using the first service ticket, wherein the first service ticket is a third party server service ticket to the first application server.
3. The method as claimed in claim 1, wherein the step of generating the access information including generating session rights and encrypting at least a portion of the session rights using a third party server service key for the first application server.
4. The method as claimed in claim 1, further comprising the step of:
encrypting at least a portion of the authentication using the first service ticket.
5. The method as claimed in claim 4, further comprising the steps of:

requesting a ticket granting ticket (TGT ticket);
receiving a TGT ticket;
requesting the third party server service ticket for the first application server;
and receiving the third party server service ticket for the first application server.
6. The method as claimed in claim 1, further comprising the steps of:
receiving a key request including the access information and authentication;
extracting the access information and authentication;
verifying the authentication of the access information using the first service ticket, and client authorization; and issuing a key reply if the authentication of the access information and client authorization are verified.
7. The method as claimed in claim 6, further comprising the steps of:
a client generating a key request including the access information and the authentication;
sending the key request to the first application server; and receiving the key reply (KEY_REP) if the authentication of the access information and client authorization are verified by the first application server.
8. A method for verifying authorization for a client to gain access to content and/or services, comprising the steps of:
receiving a key request;

extracting third party server access information and third party server authentication from the key request;
verifying an authentication of the third party access information and a client authorization; and issuing a key reply if the authentication of the third party access information and the client authorization are verified.
9. The method as claimed in claim 8, further comprising the step of authenticating the third party server access information using the third party server authentication.
10. The method as claimed in claim 9, wherein the step of authenticating includes extracting a first service ticket from the authentication and authenticating the third party server access information using the first service ticket.
11. The method as claimed in claim 8, wherein the step of extracting the third party server authentication, further comprising the steps of extracting a session key from the key request; and the step of authenticating the access information including verifying a third party server signature using the session key.
12. The method as claimed in claim 11, wherein the step of extracting the session key including decrypting at least a portion of the key request using an application server service key and extracting the session key.
13. The method as claimed in claim 8, further comprising the steps of:
receiving a request for the access information to access content;
generating the third party server access information to access the desired content from a first application server; and generating the third party server authentication of the access information.
14. The method as claimed in claim 13, wherein the step of generating the third party server authentication including incorporating a third party server service ticket for the first application server.
15. The method as claimed in claim 14, wherein the step of generating the authentication including generating a signature utilizing a session key of the third party server service ticket.
16. The method as claimed in claim 14, wherein the steps of verifying the authentication of the access information including extracting the third party server service ticket and verifying the third party server service ticket.
17. A method for providing secure communication when distributing services, comprising the steps of:
receiving a selection for services;
issuing access information for the services;
issuing authentication of the access information;
receiving a key request;

verifying an authentication of the access information and a client authorization utilizing, at least in part, a first service ticket; and issuing a key reply to a client if the authentication of the access information and the client authorization are verified.
18. The method as claimed in claim 17, further comprising the steps of:
receiving a first service ticket request from a third party server for a first server;
issuing the first service ticket to the third party server for the first server; and the steps of issuing access information and authentication including generating the access information and authentication using the first service ticket.
19. The method as claimed in claim 17, further comprising the steps of:
receiving a second service ticket request for the first server;
issuing a second service ticket for the first server; and the step of receiving a key request wherein the key request includes the second service ticket.
20. The method as claimed in claim 17, wherein:
the step of verifying the authentication of the access information including:
extracting the first service ticket;
decrypting the first service ticket;
extracting a session key from the first service ticket;
generating a signature using the session key; and verifying the signature with the authentication.
CA2475216A 2002-02-04 2003-01-02 Method and system for providing third party authentification of authorization Expired - Lifetime CA2475216C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/067,610 2002-02-04
US10/067,610 US7818792B2 (en) 2002-02-04 2002-02-04 Method and system for providing third party authentication of authorization
PCT/US2003/000083 WO2003067905A2 (en) 2002-02-04 2003-01-02 Method and system for providing third party authentification of authorization

Publications (2)

Publication Number Publication Date
CA2475216A1 true CA2475216A1 (en) 2003-08-14
CA2475216C CA2475216C (en) 2012-02-28

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Family Applications (1)

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CA2475216A Expired - Lifetime CA2475216C (en) 2002-02-04 2003-01-02 Method and system for providing third party authentification of authorization

Country Status (7)

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US (1) US7818792B2 (en)
EP (2) EP1574080B1 (en)
JP (1) JP2005525622A (en)
AU (1) AU2003207443A1 (en)
CA (1) CA2475216C (en)
MX (1) MXPA04007546A (en)
WO (1) WO2003067905A2 (en)

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AU2003207443A1 (en) 2003-09-02
EP1574080A2 (en) 2005-09-14
EP3376735A1 (en) 2018-09-19
MXPA04007546A (en) 2004-11-10
WO2003067905A2 (en) 2003-08-14
EP3376735B1 (en) 2020-12-09
JP2005525622A (en) 2005-08-25
EP1574080B1 (en) 2018-06-27
US20030149880A1 (en) 2003-08-07
CA2475216C (en) 2012-02-28
US7818792B2 (en) 2010-10-19
EP1574080A4 (en) 2007-07-25
AU2003207443A8 (en) 2003-09-02
WO2003067905A3 (en) 2005-09-29

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