Circuit and method for ensuring interconnect security with a multi-chip integrated circuit package
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United States of America Patent
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Mar 27, 2001
Grant Date -
N/A
app pub date -
Sep 21, 1998
filing date -
Oct 25, 1996
priority date (Note) -
In Force
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Abstract
Circuitry implemented within a multi-chip module comprising a first integrated circuit chip and a second integrated circuit chip coupled together through an interconnect. Both the first and second integrated circuit chips include a cryptographic engine coupled to the interconnect and a non-volatile memory element used to contain key information. These cryptographic engines are solely used to encrypt outgoing information being output across the interconnect or to decrypt incoming information received from the interconnect. This prevents fraudulent physical attack of information transmitted across the interconnect.
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