Apparatus and method for upgrading terminals to maintain a secure communication network
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United States of America Patent
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Sep 1, 1992
Grant Date -
N/A
app pub date -
Nov 16, 1990
filing date -
Nov 16, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A secure communication network serves a plurality of terminals grouped into different security categories. Each terminal includes a replaceable security element containing a security algorithm specific to the security category to which the terminal is assigned. Upon the breach of a particular security version, the security elements in the affected category are replaced with new elements containing a different algorithm. The security elements are relatively low cost, and can be replaced on an as needed or periodic basis to maintain system security.
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