System and method for restricting access to a terminal
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United States of America Patent
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Jan 31, 2012
Grant Date -
Mar 22, 2007
app pub date -
Dec 13, 2005
filing date -
Aug 31, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for authenticating data comprising the steps of: providing data to a first device having at least two initial cryptographic keys; generating authentication information required to authenticate the data utilizing the at least two initial cryptographic keys; sending the data and authentication data to a second device having paired cryptographic keys wherein each paired cryptographic key is associated to one of the at least two initial cryptographic keys; and authenticating the data in the second device utilizing the paired cryptographic keys.
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