Cryptographics

Exploiting Graphics Cards for Security

By: Debra Cook, Angelos Keromytis

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Hardcover | 2 June 2006

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Hardcover
156 Pages

Dimensions(cm)
23.5 x 16.51 x 1.91

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$169.00

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Software that covertly monitors user actions, also known as spyware, has become a first-level security threat due to its ubiquity and the difficulty of detecting and removing it. This is especially so for video conferencing, thin-client computing and Internet cafes.

CryptoGraphics: Exploiting Graphics Cards for Security explores the potential for implementing ciphers within GPUs, and describes the relevance of GPU-based encryption to the security of applications involving remote displays. As the processing power of GPUs increases, research involving the use of GPUs for general purpose computing has arisen. This work extends such research by considering the use of a GPU as a parallel processor for encrypting data. The authors evaluate the operations found in symmetric and asymmetric key ciphers to determine if encryption can be programmed in existing GPUs. A detailed description for a GPU based implementation of AES is provided. The feasibility of GPU-based encryption allows the authors to explore the use of a GPU as a trusted system component. Unencrypted display data can be confined to the GPU to avoid exposing it to any malware running on the operating system.

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List of Figures	p. ix
List of Tables	p. xi
Preface	p. xiii
Acknowledgments	p. xv
Introduction	p. 1
Overview	p. 1
GPUs	p. 3
Motivation	p. 3
Encryption in GPUs	p. 4
Remotely Keyed CryptoGraphics	p. 5
Related Issues	p. 5
Extensions	p. 6
Conclusions	p. 6
Graphical Processing Units	p. 9
Overview	p. 9
GPU Architecture	p. 10
GPUs and General Purpose Programming	p. 15
APIs	p. 17
OpenGL and Pixel Processing	p. 19
Representing Data with Vertices	p. 22
Non-Graphic Uses of GPUs	p. 23
Motivation	p. 25
Overview	p. 25
Accelerating Cryptographic Processing	p. 25
Issue	p. 25
Previous Approaches	p. 26
Summary of the GPU-Based Approach	p. 27
Malware and Spyware	p. 28
Issue	p. 28
Motivating Applications	p. 28
Other Related Work	p. 30
Summary of the GPU-Based Approach	p. 33
Side Channel and Differential Fault Analysis	p. 33
Encryption in GPUs	p. 37
Overview	p. 37
Feasibility of Asymmetric Key Ciphers	p. 38
Feasibility of Symmetric Key Ciphers	p. 40
Modes of Encryption	p. 45
Example: AES	p. 48
AES Background	p. 48
AES in OpenGL	p. 53
AES Experiments	p. 58
Use of Parallel Processing in Attacks	p. 64
GPUs and Stream Ciphers	p. 64
Overview	p. 64
Experiments	p. 65
Conclusions	p. 67
Remotely Keyed Cryptographics	p. 69
Overview	p. 69
Keying of GPUs	p. 69
Prototype	p. 72
Purpose	p. 72
Architecture	p. 72
Implementation	p. 74
Design Decisions	p. 78
Remote Keying	p. 79
Decryption of Data in the GPU	p. 80
Experiments	p. 82
Conclusions	p. 87
Related Issues	p. 89
Overview	p. 89
Protecting User Input	p. 89
Keying the GPU	p. 90
Attacks	p. 93
Trusted Platform Module	p. 95
Data Compression	p. 97
Extensions	p. 99
Overview	p. 99
Graphics-based Cipher	p. 99
Encryption within DSPs	p. 101
Conclusions	p. 103
Summary	p. 103
Suggested Projects	p. 105
Appendices	p. 107
AES OpenGL Code for Encryption	p. 107
Overview	p. 107
Version Using the Red Pixel Component and the Back Buffer	p. 107
Version Using the RGB Pixel Components and the Front Buffer	p. 116
References	p. 131
Index	p. 139
Table of Contents provided by Ingram. All Rights Reserved.

Cryptographics

Exploiting Graphics Cards for Security

At a Glance

Hardcover

Shipping

How to return your order

Defective items

You Can Find This Book In

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