PROGRAMMABLE LOGIC DEVICE WITH METHOD OF PRREVENTING READBACK
It is sometimes desirable to protect a design used in a PLD from being copie d. If the design is stored in a diferent device from the PLD and read into the PLD through a bitstream, the design may be encrypted as it is read into the PLD and decrypted within the PLD before being loaded into configurat...
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Main Authors | , , , , |
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Format | Patent |
Language | English French |
Published |
15.05.2007
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Subjects | |
Online Access | Get full text |
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Summary: | It is sometimes desirable to protect a design used in a PLD from being copie d. If the design is stored in a diferent device from the PLD and read into the PLD through a bitstream, the design may be encrypted as it is read into the PLD and decrypted within the PLD before being loaded into configuration memo ry cells for configuring the PLD. According to the invention, in such a device, a method is provided to prevent the design from being read back from the PLD i n its decrypted state if it had been encrypted when loaded into the PLD.</SDOA B> |
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Bibliography: | Application Number: CA20012429597 |