公开(公告)号：US10243727B2

公开(公告)日：2019-03-26

申请号：US14529238

申请日：2014-10-31

Applicant: ATI Technologies ULC ,  Advanced Micro Devices, Inc.

Inventor： Winthrop Wu ,  James Goodman ,  Martin Kiernicki ,  Yoichi Shimokawa ,  William Thomas Morrison ,  Creighton Eldridge ,  David Kaplan

IPC: H04K1/00 ,  H04L9/00 ,  G09C1/00 ,  H04L9/06 ,  H04L9/30

Abstract: The present disclosure presents methods, apparatuses, and systems to bolster communication security, and more particularly to utilize a constant time cryptographic co-processor engine for such communication security. For example, the disclosure includes a method for secure communication, comprising receiving encrypted data at a receiving device; obtaining a randomization for at least one bit of the encrypted data; modifying an execution of a cryptographic algorithm on the at least one bit to obtain a randomized cryptographic algorithm based on the randomization; and executing the randomized cryptographic algorithm on the at least one bit of encrypted data to recover original data associated with the encrypted data.

公开(公告)号：US20160352509A1

公开(公告)日：2016-12-01

申请号：US14529238

申请日：2014-10-31

Applicant: ATI Technologies ULC ,  Advanced Micro Devices, Inc.

Inventor： Winthrop Wu ,  James Goodman ,  Martin Kiernicki ,  Yoichi Shimokawa ,  William Thomas Morrison ,  Creighton Eldridge ,  David Kaplan

IPC: H04L9/00 ,  H04L9/30 ,  H04L9/06

CPC classification number: H04L9/003 ,  G09C1/00 ,  H04L9/0631 ,  H04L9/302 ,  H04L9/3066 ,  H04L2209/08

Abstract: The present disclosure presents methods, apparatuses, and systems to bolster communication security, and more particularly to utilize a constant time cryptographic co-processor engine for such communication security. For example, the disclosure includes a method for secure communication, comprising receiving encrypted data at a receiving device; obtaining a randomization for at least one bit of the encrypted data; modifying an execution of a cryptographic algorithm on the at least one bit to obtain a randomized cryptographic algorithm based on the randomization; and executing the randomized cryptographic algorithm on the at least one bit of encrypted data to recover original data associated with the encrypted data.

Abstract translation: 本公开提供了用于加强通信安全性的方法，装置和系统，更具体地，涉及利用用于这种通信安全性的恒定时间密码协处理器引擎。 例如，本公开包括一种用于安全通信的方法，包括在接收设备处接收加密数据; 获得加密数据的至少一位的随机化; 修改所述至少一个比特上的加密算法的执行以获得基于所述随机化的随机加密算法; 以及对所述加密数据的至少一位执行所述随机加密算法，以恢复与所述加密数据相关联的原始数据。

公开(公告)号：US20150109153A1

公开(公告)日：2015-04-23

申请号：US14057553

申请日：2013-10-18

Applicant: Advanced Micro Devices, Inc.

Inventor： Winthrop J. Wu ,  Martin Kiernicki ,  Creighton Eldridge

IPC: H03M7/40

CPC classification number: H03M7/30 ,  H03M7/40 ,  H03M7/4031 ,  H03M7/425

Abstract: A decompression engine may include an input configured to receive an input code comprises one or more bits from a bitstream of encoded data, a symbol decoder coupled with the input, where the symbol decoder is configured to calculate, based on the input code, a plurality of candidate addresses each corresponding to a code group. The symbol decoder may further include a group identifier module coupled with the symbol decoder, wherein the group identifier module is configured to identify one of the plurality of code groups corresponding to the input code, and a multiplexer coupled with the group identifier module, wherein the multiplexer is configured to select as a final address one of the plurality of candidate addresses corresponding to the identified code group.

Abstract translation: 解压缩引擎可以包括被配置为从编码数据的比特流接收包括一个或多个比特的输入代码的输入，与输入相耦合的符号解码器，其中符号解码器被配置为基于输入的代码来计算多个 的候选地址，每个对应于代码组。 符号解码器还可以包括与符号解码器耦合的组标识符模块，其中组标识符模块被配置为识别对应于输入代码的多个代码组中的一个，以及与组标识符模块耦合的多路复用器，其中， 复用器被配置为选择对应于所识别的代码组的多个候选地址中的一个的最终地址。

公开(公告)号：US09094039B2

公开(公告)日：2015-07-28

申请号：US14057553

申请日：2013-10-18

Applicant: Advanced Micro Devices, Inc.

Inventor： Winthrop J Wu ,  Martin Kiernicki ,  Creighton Eldridge

IPC: H03M7/40 ,  H03M7/30

CPC classification number: H03M7/30 ,  H03M7/40 ,  H03M7/4031 ,  H03M7/425

Abstract: A decompression engine may include an input configured to receive an input code comprises one or more bits from a bitstream of encoded data, a symbol decoder coupled with the input, where the symbol decoder is configured to calculate, based on the input code, a plurality of candidate addresses each corresponding to a code group. The symbol decoder may further include a group identifier module coupled with the symbol decoder, wherein the group identifier module is configured to identify one of the plurality of code groups corresponding to the input code, and a multiplexer coupled with the group identifier module, wherein the multiplexer is configured to select as a final address one of the plurality of candidate addresses corresponding to the identified code group.

Abstract translation: 解压缩引擎可以包括被配置为从编码数据的比特流接收包括一个或多个比特的输入代码的输入，与输入相耦合的符号解码器，其中符号解码器被配置为基于输入代码来计算多个 的候选地址，每个对应于代码组。 符号解码器还可以包括与符号解码器耦合的组标识符模块，其中组标识符模块被配置为识别对应于输入代码的多个代码组中的一个，以及与组标识符模块耦合的多路复用器，其中， 复用器被配置为选择对应于所识别的代码组的多个候选地址中的一个的最终地址。