CA2442656A1 - Method and apparatus for security in a data processing system - Google Patents

Method and apparatus for security in a data processing system Download PDF

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Publication number
CA2442656A1
CA2442656A1 CA002442656A CA2442656A CA2442656A1 CA 2442656 A1 CA2442656 A1 CA 2442656A1 CA 002442656 A CA002442656 A CA 002442656A CA 2442656 A CA2442656 A CA 2442656A CA 2442656 A1 CA2442656 A1 CA 2442656A1
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Canada
Prior art keywords
key
information
registration
receiving
decrypting
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Granted
Application number
CA002442656A
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French (fr)
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CA2442656C (en
Inventor
Philip Hawkes
Gregory G. Rose
Raymond T. Hsu
Ramin Rezaiifar
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Qualcomm Inc
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Individual
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Publication of CA2442656C publication Critical patent/CA2442656C/en
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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
    • H04L63/04—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/606—Protecting data by securing the transmission between two devices or processes
    • 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
    • H04L12/1863—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast comprising mechanisms for improved reliability, e.g. status reports
    • H04L12/1877—Measures taken prior to transmission
    • 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
    • H04L63/061—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key exchange, e.g. in peer-to-peer 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
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/068—Network architectures or network communication protocols for network security for supporting key management in a packet data network using time-dependent keys, e.g. periodically changing keys
    • 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
    • H04L63/16—Implementing security features at a particular protocol layer
    • H04L63/164—Implementing security features at a particular protocol layer at the network layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/70—Media network packetisation
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • 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
    • H04L67/50—Network services
    • H04L67/535—Tracking the activity of the user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/04—Protocols for data compression, e.g. ROHC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/164—Adaptation or special uses of UDP protocol
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • 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
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • 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
    • H04L9/40—Network security protocols
    • 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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2107—File encryption
    • 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
    • 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
    • H04L2209/601—Broadcast encryption
    • 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
    • H04L2209/80—Wireless
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/062—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying encryption of the keys
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/101—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/186—Processing of subscriber group data

Abstract

Method and apparatus for secure transmissions. Each user is provided a registration key. A long-time updated broadcast key is encrypted using the registration key and provided periodically to a user. A short-time updated key is encrypted using the broadcast key and provided periodically to a user. Broadcasts are then encrypted using the short-time key, wherein the user decrypts the broadcast message using the short-time key.

Claims (24)

1. A method for secure transmissions, the method comprising:
determining a registration key specific to a participant in a transmission;
determining a first key;
encrypting the first key with the registration key;
determining a second key;
encrypting the second key with the first key; and updating the first and second keys.
2. The method as in claim 1, wherein updating further comprises:
updating the first key according to a first time period; and updating the second key according to a second time period, wherein the second time period is less than the first time period.
3. The method as in claim 2, wherein updating further comprises:
encrypting an updated first key with the registration key ; and encrypting an updated second key with the updated first key.
4. The method as in claim 2, further comprising:
encrypting a broadcast stream of information using the second key; and transmitting the encrypted broadcast stream of information.
5. The method as in claim 4, wherein the broadcast stream of information comprises video information.
6. The method as in claim 4, wherein the broadcast stream of information comprises Internet Protocol packets.
7. The method as in claim 3, further comprising:
calculating a registration key information message; and transmitting the registration key information message.
8. The method as in claim 7, further comprising:
calculating a first key information message corresponding to the updated and encrypted first key; and transmitting the first key information message.
9. The method as in claim 8, further comprising:
calculating a second key information message corresponding to the updated and encrypted second key; and transmitting the second key information message.
10.The method as in claim 1, further comprising:
transmitting the encrypted first key; and transmitting the encrypted second key.
11. A method for secure reception of a transmission, the method comprising:
receiving a registration key specific to a participant in a transmission;
receiving a first key;
decrypting the first key with the registration key;
receiving a second key;
decrypting the second key with the first key;
receiving a broadcast stream of information; and decrypting the broadcast stream of information using the second key.
12. The method as in claim 11, further comprising:
storing the first key in a secure memory storage unit; and storing the second key in a memory storage unit.
13. The method as in claim 11, further comprising:
recovering the first key from a first key information message; and recovering the second key from a second key information message.
14. The method as in claim 11, further comprising:
updating the first key according to a first time period; and updating the second key according to a second time period.
15. In a wireless communication system supporting a broadcast service option, an infrastructure element comprising:
a receive circuitry;
a user identification unit, operative to recover a short-time key for decrypting a broadcast message, comprising:
processing unit operative to decrypt key information;
memory storage unit for storing a registration key; and a mobile equipment unit adapted to apply the short-time key for decrypting the broadcast message.
16. The infrastructure element as in claim 15, wherein the short-time key is processed by the user identification unit and passed to the mobile equipment unit.
17. The infrastructure element as in claim 15, wherein the memory storage unit is a secure memory storage unit.
18. The infrastructure element as in claim 15, wherein the memory storage unit stores a broadcast access key, and wherein the processing unit decrypts the short-time key using the broadcast access key.
19. The infrastructure element as in claim 18, wherein the short-time key is updated at a first frequency.
20. The infrastructure element as in claim 19, wherein the broadcast access key is updated at a second frequency less than the first frequency.
21. The infrastructure element as in claim 15, wherein the broadcast service option is a video service.
22. A wireless communication system, comprising:
means for determining a registration key specific to a participant in a transmission;

means for determining a first key;
means for encrypting the first key with the registration key;
means for determining a second key;
means for encrypting the second key with the first key; and means for updating the first and second keys.
23.An infrastructure element, comprising:
means for receiving a registration key specific to a participant in a transmission;
means for receiving a first key;
means for decrypting the first key with the registration key;
means for receiving a second key;
means for decrypting the second key with the first key;
means for receiving a broadcast stream of information; and means for decrypting the broadcast stream of information using the second key.
24.A digital signal storage device, comprising:
first set of instructions for receiving a registration key specific to a participant in a transmission;
second set of instructions for receiving a first key;
third set of instructions for decrypting the first key with the registration key;
fourth set of instructions for receiving a second key;
fifth set of instructions for decrypting the second key with the first key;
sixth set of instructions for receiving a broadcast stream of information;
and seventh set of instructions for decrypting the broadcast stream of information using the second key.
CA2442656A 2001-03-28 2002-03-28 Method and apparatus for security in a data processing system Expired - Lifetime CA2442656C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US27997001P 2001-03-28 2001-03-28
US60/279,970 2001-03-28
US09/933,972 2001-08-20
US09/933,972 US8121296B2 (en) 2001-03-28 2001-08-20 Method and apparatus for security in a data processing system
PCT/US2002/009835 WO2002080449A1 (en) 2001-03-28 2002-03-28 Method and apparatus for security in a data processing system

Publications (2)

Publication Number Publication Date
CA2442656A1 true CA2442656A1 (en) 2002-10-10
CA2442656C CA2442656C (en) 2012-02-07

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CA2442656A Expired - Lifetime CA2442656C (en) 2001-03-28 2002-03-28 Method and apparatus for security in a data processing system

Country Status (11)

Country Link
US (1) US8121296B2 (en)
EP (2) EP2360888A1 (en)
JP (1) JP4282992B2 (en)
KR (1) KR100886592B1 (en)
CN (2) CN101860860B (en)
BR (1) BRPI0208498B1 (en)
CA (1) CA2442656C (en)
HK (1) HK1149673A1 (en)
MX (1) MXPA03008923A (en)
TW (1) TW550926B (en)
WO (1) WO2002080449A1 (en)

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BR0208498A (en) 2006-05-23
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KR20030086617A (en) 2003-11-10
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US8121296B2 (en) 2012-02-21
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HK1149673A1 (en) 2011-10-07

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