Authentication for secure devices with limited cryptography
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United States of America Patent
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Jan 7, 2003
Issued Date -
N/A
app pub date -
Aug 23, 2000
filing date -
Aug 29, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Authentication is provided for secure devices with limited cryptography, particularly for devices which do not have the capability to do public-key cryptography and generate random numbers. An initialization process is disclosed for limited-power Devices which are unable to perform public-key cryptography and generate random-numbers, as well as for full-power Devices which have the capability to do public-key cryptography and generate random numbers. A Challenge-Response procedure is also disclosed for ensuring the secure state of a device.
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