发明名称 |
PROGRAMMABLE LOGIC DEVICE WITH METHOD OF PREVENTING READBACK |
摘要 |
It is sometimes desirable to protect a design used in a PLD from being copied. If the design is stored in a different 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 memory 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 in its decrypted state if it had been encrypted when loaded into the PLD. |
申请公布号 |
EP1358530(B1) |
申请公布日期 |
2016.02.24 |
申请号 |
EP20010998883 |
申请日期 |
2001.11.28 |
申请人 |
XILINX, INC. |
发明人 |
PANG, RAYMOND, C.;SZE, WALTER, N.;THENDEAN, JOHN, M.;TRIMBERGER, STEPHEN, M.;WONG, JENNIFER |
分类号 |
G06F21/76;H03K19/173;G06F17/50;G06F21/00;G09C1/00;H04L9/10;H04N21/2347 |
主分类号 |
G06F21/76 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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