Communication system message authentication
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United States of America Patent
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-
Aug 24, 1993
Grant Date -
N/A
app pub date -
Mar 26, 1991
filing date -
Mar 26, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Authentication of system status OSWs in a trunked communication system is provided by first verifying (411) that a received system ID (313) matches a pre-programmed system ID. A system status OSW must then be matched twice before the information in the system status OSW is programmed into a communication unit (115), thus limiting the possibility of false decoding of system status OSWs.
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