公开(公告)号：US10379927B2

公开(公告)日：2019-08-13

申请号：US15340978

申请日：2016-11-01

Applicant: Xilinx, Inc.

Inventor： Lester S. Sanders ,  Shravanthi Katam ,  Abhinaya Katta ,  Jayaram Pvss

IPC: G06F11/00 ,  G06F11/07 ,  G06F11/16 ,  G06F1/12 ,  G06F1/08 ,  G06F11/30

Abstract: An apparatus can include an interface circuit configured to receive an operating parameter and a control circuit coupled to the interface circuit and configured to store the operating parameter. The apparatus also can include a clock error detection circuit coupled to the control circuit. The clock error detection circuit can be configured to detect a clock error condition on a clock signal based upon the operating parameter and, responsive to detecting the clock error condition, generate a signal indicating an occurrence of the clock error condition.

公开(公告)号：US09152794B1

公开(公告)日：2015-10-06

申请号：US14019323

申请日：2013-09-05

Applicant: Xilinx, Inc.

Inventor： Lester S. Sanders ,  Yatharth K. Kochar

IPC: G06F21/57 ,  H04L9/32

CPC classification number: G06F21/575 ,  H04L9/0877 ,  H04L9/3247 ,  H04L9/3249 ,  H04L2209/38

Abstract: A method relating generally to generating a boot image, as performed by an information handling system, for an embedded device is disclosed. This method includes a public key obtained by a boot image generator. A first hash for the public key is generated by the boot image generator. The first hash is provided to a signature generator. A first signature for the first hash is generated by the signature generator. A first partition for the boot image is obtained by the boot image generator. A second hash for the first partition is generated by the boot image generator. The second hash is provided to the signature generator. A second signature for the second hash is generated by the signature generator. The boot image generator and the signature generator are programmed into the information handling system. The boot image includes the public key, the first signature, and the second signature. The boot image is output from the information handling system.

Abstract translation: 公开了一种通常用于生成针对嵌入式设备的由信息处理系统执行的引导映像的方法。 该方法包括由引导图像生成器获得的公开密钥。 公钥的第一个散列由引导映像生成器生成。 第一个散列被提供给签名生成器。 第一个散列的第一个签名由签名生成器生成。 引导映像生成器获得引导映像的第一个分区。 第一个分区的第二个散列由引导映像生成器生成。 第二个散列被提供给签名生成器。 第二个散列的第二个签名由签名生成器生成。 引导图像生成器和签名生成器被编程到信息处理系统中。 启动映像包括公钥，第一签名和第二签名。 引导映像从信息处理系统输出。

公开(公告)号：US09165143B1

公开(公告)日：2015-10-20

申请号：US13833177

申请日：2013-03-15

Applicant: Xilinx, Inc.

Inventor： Lester S. Sanders ,  Yatharth K. Kochar ,  Steven E. McNeil ,  Jason J. Moore ,  Roger D. Flateau, Jr. ,  Lawrence C. Hung

IPC: G06F11/30 ,  G06F12/14 ,  G06F21/57

CPC classification number: G06F21/575 ,  G06F21/572 ,  G06F21/76

Abstract: A method relating generally to loading a boot image is disclosed. In such a method, a header of a boot image file is read by boot code executed by a system-on-chip. It is determined whether the header read has an authentication certificate. If the header has the authentication certificate, authenticity of the header is verified with the first authentication certificate. It is determined whether the header is encrypted. If the header is encrypted, the header is decrypted.

Abstract translation: 公开了一般涉及加载引导图像的方法。 在这种方法中，通过由片上系统执行的引导代码来读取引导映像文件的标题。 确定头读取是否具有认证证书。 如果标头具有认证证书，则使用第一认证证书验证报头的真实性。 确定头部是否被加密。 如果标题被加密，则头部被解密。

公开(公告)号：US20180121280A1

公开(公告)日：2018-05-03

申请号：US15340978

申请日：2016-11-01

Applicant: Xilinx, Inc.

Inventor： Lester S. Sanders ,  Shravanthi Katam ,  Abhinaya Katta ,  Jayaram Pvss

IPC: G06F11/07 ,  G06F1/12

CPC classification number: G06F11/0757 ,  G06F1/08 ,  G06F1/12 ,  G06F11/0736 ,  G06F11/0751 ,  G06F11/0772 ,  G06F11/079 ,  G06F11/1604 ,  G06F11/3058

Abstract: An apparatus can include an interface circuit configured to receive an operating parameter and a control circuit coupled to the interface circuit and configured to store the operating parameter. The apparatus also can include a clock error detection circuit coupled to the control circuit. The clock error detection circuit can be configured to detect a clock error condition on a clock signal based upon the operating parameter and, responsive to detecting the clock error condition, generate a signal indicating an occurrence of the clock error condition.

公开(公告)号：US09230112B1

公开(公告)日：2016-01-05

申请号：US13775151

申请日：2013-02-23

Applicant: Xilinx, Inc.

Inventor： Edward S. Peterson ,  Roger D. Flateau, Jr. ,  James D. Wesselkamper ,  Steven E. McNeil ,  Jason J. Moore ,  Lester S. Sanders ,  Lawrence C. Hung ,  Yatharth K. Kochar

IPC: G06F9/00 ,  G06F15/177 ,  G06F21/57 ,  G06F9/44 ,  G06F21/76

CPC classification number: G06F21/575 ,  G06F9/4401 ,  G06F9/4406 ,  G06F9/4416 ,  G06F21/76

Abstract: A system generally relating to an SoC, which may be a field programmable SoC (“FPSoC”), is disclosed. In this SoC, dedicated hardware includes a processing unit, a first internal memory, a second internal memory, an authentication engine, and a decryption engine. A storage device is coupled to the SoC. The storage device has access to a boot image. The first internal memory has boot code stored therein. The boot code is for a secure boot of the SoC. The boot code is configured to cause the processing unit to control the secure boot.

Abstract translation: 通常涉及可能是现场可编程SoC（“FPSoC”）的SoC的系统被公开。 在该SoC中，专用硬件包括处理单元，第一内部存储器，第二内部存储器，认证引擎和解密引擎。 存储设备耦合到SoC。 存储设备可以访问引导映像。 第一内部存储器具有存储在其中的引导代码。 引导代码用于安全引导SoC。 引导代码被配置为使处理单元控制安全启动。