Message formatting, authentication, and error detection in home control systems
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United States of America Patent
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Feb 19, 2002
Issued Date -
N/A
app pub date -
Jul 6, 1999
filing date -
Jun 12, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system communicates over electrical wiring in a house or other building. Messages between components include a group identifier code, message data, and a message authentication code (MAC) that is calculated for each message. MACs are calculated using a shared key value and a one-way hash function.
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