Academic Commons

Articles

CryptoGraphics: Secret Key Cryptography Using Graphics Cards

Cook, Debra L.; Ioannidis, John; Keromytis, Angelos D.; Luck, Jake

We study the feasibility of using Graphics Processing Units (GPUs) for cryptographic processing, by exploiting the ability for GPUs to simultaneously process large quantities of pixels, to offload symmetric key encryption from the main processor. We demonstrate the use of GPUs for applying the key stream when using stream ciphers. We also investigate the use of GPUs for block ciphers, discuss operations that make certain ciphers unsuitable for use with a GPU, and compare the performance of an OpenGL-based implementation of AES with implementations utilizing general CPUs. While we conclude that existing symmetric key ciphers are not suitable for implementation within a GPU given present APIs, we discuss the applicability of moving encryption and decryption into the GPU to image processing, including the handling of displays in thin-client applications and streaming video, in scenarios in which it is desired to limit exposure of the plaintext to within the GPU on untrusted clients.

Subjects

Files

Also Published In

Title
Topics in Cryptology -- CT-RSA 2005: The Cryptographers' Track at the RSA Conference 2005, San Francisco, CA, USA, February 14-18, 2005: Proceedings
DOI
https://doi.org/10.1007/978-3-540-30574-3_23

More About This Work

Academic Units
Computer Science
Publisher
Springer
Series
Lecture Notes in Computer Science, 3376
Published Here
June 28, 2012
Academic Commons provides global access to research and scholarship produced at Columbia University, Barnard College, Teachers College, Union Theological Seminary and Jewish Theological Seminary. Academic Commons is managed by the Columbia University Libraries.