Method and system for secure cable modem registration
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United States of America Patent
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Jan 2, 2001
Grant Date -
N/A
app pub date -
Feb 4, 1998
filing date -
Feb 4, 1998
priority date (Note) -
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Abstract
A method and system for secure cable modem initialization in a data-over-cable system is provided. The method includes sending a unique identifier, such an Internet Protocol ('IP') address and a selected time-value, such as an approximate message send time-value, in a registration request message. A message integrity check value is calculated using the unique identifier, the selected time-value and one or more configuration parameters in a pre-determined order. The message integrity check value is added to the registration request message. A cable modem termination system receives the registration request message and uses the message integrity check value to authenticate the message and determine if the registration request message was sent within a pre-determined period of time (e.g., 1 second) from a recognized cable modem. If not, the registration request message is discarded and a log file entry is added to a log file with information from the registration request message (e.g., network level and data-link level network addresses). The network address and selected time-value uniquely identify the cable modem and help prevent a rouge user from intercepting a valid cable modem registration request message and using it at a later time to register a rouge cable modem. The log file helps track rouge users attacking the data-over-cable system. The method and system provide improved security for registering cable modems in a data-over-cable system.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Beser, Nurettin B | Evanston, IL | 33 | 3106 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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