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34 条记录 (耗时 0.035 秒)

    Programmable logic device with decryption and structure for preventing design relocation
    6.
    发明授权
    Programmable logic device with decryption and structure for preventing design relocation 有权
    具有解密和结构的可编程逻辑器件，用于防止设计重新定位

    公开(公告)号：US07117372B1

    公开(公告)日：2006-10-03

    申请号：US09724972

    申请日：2000-11-28

    申请人： Stephen M. Trimberger ,  Raymond C. Pang ,  Walter N. Sze ,  Jennifer Wong

    发明人： Stephen M. Trimberger ,  Raymond C. Pang ,  Walter N. Sze ,  Jennifer Wong

    IPC分类号： H04L9/14 ,  H04K1/00

    CPC分类号： G01R31/31719 ,  G06F12/1408 ,  G06F21/76 ,  H04L9/0625 ,  H04L9/0637

    摘要： It is sometimes desirable to protect a design used in a PLD from being copied. According to the present invention, the design is encrypted, then loaded into a PLD, then decrypted, and then loaded into the configuration memory of the PLD. An attacker could relocate the design to a visible part of the PLD and learn the design. The present invention prevents design relocation by attaching address information to the encryption key or by encrypting an address where the design is to be loaded as well as encrypting the design itself. Thus, if an attacker tries to load the design into a different part of the PLD, the encrypted design will not decrypt properly.

    摘要翻译： 有时期望保护PLD中使用的设计不被复制。 根据本发明，设计被加密，然后加载到PLD中，然后解密，然后加载到PLD的配置存储器中。 攻击者可以将设计重新定位到PLD的可见部分，并学习设计。 本发明通过将地址信息附加到加密密钥或通过加密设计要加载的地址以及加密设计本身来防止设计重定位。 因此，如果攻击者试图将设计加载到PLD的不同部分，则加密的设计将无法正确解密。

    Encryption key for multi-key encryption in programmable logic device
    7.
    发明授权
    Encryption key for multi-key encryption in programmable logic device 有权
    可编程逻辑器件中多键加密的加密密钥

    公开(公告)号：US06957340B1

    公开(公告)日：2005-10-18

    申请号：US09724873

    申请日：2000-11-28

    申请人： Raymond C. Pang ,  Stephen M. Trimberger ,  Jennifer Wong

    发明人： Raymond C. Pang ,  Stephen M. Trimberger ,  Jennifer Wong

    IPC分类号： G06F21/00 ,  H04L9/00 ,  H04L9/14

    CPC分类号： G06F21/76 ,  H04L9/0637 ,  H04L9/0894 ,  H04L9/14

    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, an unencrypted bitstream could be observed and copied as it is being loaded. According to the invention, a bitstream for configuring a PLD with an encrypted design includes unencrypted words for controlling loading of the configuration bitstream and encrypted words that actually specify the design.

    摘要翻译： 有时期望保护PLD中使用的设计不被复制。 如果设计存储在与PLD不同的设备中并通过比特流读入PLD，则在加载时可以观察和复制未加密的比特流。 根据本发明，用于配置具有加密设计的PLD的比特流包括用于控制配置比特流的加载的未加密的字和实际指定设计的加密的字。

    Multi-product die configurable as two or more programmable integrated circuits of different logic capacities
    8.
    发明授权
    Multi-product die configurable as two or more programmable integrated circuits of different logic capacities 有权
    多产品管芯可配置为具有不同逻辑容量的两个或多个可编程集成电路

    公开(公告)号：US07345507B1

    公开(公告)日：2008-03-18

    申请号：US11333991

    申请日：2006-01-17

    申请人： Steven P. Young ,  Trevor J. Bauer ,  F. Erich Goetting ,  P. Hugo Lamarche ,  Patrick J. McGuire ,  Kwansuhk Oh ,  Raymond C. Pang ,  Bruce E. Talley ,  Paul Ying-Fung Wu

    发明人： Steven P. Young ,  Trevor J. Bauer ,  F. Erich Goetting ,  P. Hugo Lamarche ,  Patrick J. McGuire ,  Kwansuhk Oh ,  Raymond C. Pang ,  Bruce E. Talley ,  Paul Ying-Fung Wu

    IPC分类号： H01L25/00

    CPC分类号： H03K19/177

    摘要： A multi-product integrated circuit die includes at least two different portions, of which at least one portion can be deliberately rendered non-operational in some manner (e.g., non-functional, inaccessible, and/or non-programmable) within the package. A selection code storage circuit stores a product selection code. A first value of the product selection code selects the option where both the first and second portions of the first die are operational. A second value of the product selection code selects the option where only the first portion of the first die is operational. The selection code storage circuit can include non-volatile memory or a fuse structure, or the product selection code can be configured as a package bonding option. The product selection code can also enable boundary scan for the operational portion of the die, and omit from the boundary scan chain any portions of the die that are deliberately rendered non-operational.

    摘要翻译： 多产品集成电路管芯包括至少两个不同的部分，其中至少一个部分可以以某种方式（例如，非功能的，不可访问的和/或不可编程的）被故意地变为不可操作的。 选择码存储电路存储产品选择码。 产品选择代码的第一个值选择第一模具的第一和第二部分都可操作的选项。 产品选择代码的第二个值选择仅第一个模具的第一部分可操作的选项。 选择代码存储电路可以包括非易失性存储器或熔丝结构，或者可以将产品选择代码配置为封装绑定选项。 产品选择代码还可以为模具的操作部分启用边界扫描，并且从边界扫描链中省略故意使其不可操作的模具的任何部分。

    Methods of providing families of integrated circuits with similar dies partially disabled using product selection codes
    9.
    发明授权
    Methods of providing families of integrated circuits with similar dies partially disabled using product selection codes 有权
    使用产品选择代码为集成电路系列提供类似模具的方法部分禁用

    公开(公告)号：US07402443B1

    公开(公告)日：2008-07-22

    申请号：US11333819

    申请日：2006-01-17

    申请人： Raymond C. Pang ,  Trevor J. Bauer ,  F. Erich Goetting ,  Bruce E. Talley ,  Steven P. Young

    发明人： Raymond C. Pang ,  Trevor J. Bauer ,  F. Erich Goetting ,  Bruce E. Talley ,  Steven P. Young

    IPC分类号： G01R31/26

    CPC分类号： H01L27/11807 ,  H01L27/0207

    摘要： A method of providing a family of integrated circuits (ICs) includes applying a first product selection code (PSC) to a first IC die, applying a second PSC to a second IC die, and providing a third packaged IC die. The first IC die includes first and second portions, both of which are operational based on the first PSC. The second IC die is a duplicate of the first die, but the second portion is rendered non-operational by the second PSC. The third IC die is substantially similar to the first portion of the first die. The second and third packages can be the same and the packaged dies can be interchangeable in a system. When the dies are programmable logic device (PLD) dies, the second and third dies use the same configuration bit stream, which may be smaller than the configuration bit stream for the first IC die.

    摘要翻译： 提供集成电路（IC）系列的方法包括：将第一产品选择代码（PSC）应用于第一IC芯片，将第二PSC应用于第二IC芯片，以及提供第三封装IC芯片。 第一IC芯片包括第一和第二部分，它们都基于第一PSC而可操作。 第二IC芯片是第一裸片的副本，但是第二部分由第二PSC不可操作。 第三IC管芯基本上类似于第一管芯的第一部分。 第二和第三包可以是相同的，并且包装的模具可以在系统中互换。 当管芯是可编程逻辑器件（PLD）管芯时，第二和第三管芯使用与第一IC管芯的配置位流相同的配置位流。