Read- and write-access control circuits for decryption-key memories on programmable logic devices
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United States of America Patent
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May 15, 2007
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N/A
app pub date -
May 17, 2002
filing date -
Mar 29, 2002
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Abstract
Described are various methods and systems for preventing unauthorized access to decryption keys on programmable logic devices. In one example, a key memory can operate in a secure mode or a non-secure mode. The non-secure mode allows decryption keys to be read or written freely; the secure mode bars read and write access to the decryption keys. The key memory can support secure and non-secure modes on a key-by-key basis.
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