AES算法GPU协处理下分组加密模式的研究+源代码
毕业论文关键词：数据安全；分组加密；AES；GPU
The Research of Block Cipher Mode Based on GPU
Abstract： Protecting data from hostile fetching and modifying are the most important fields of data security. The most frequently method to protect data is to encrypt the message, and needs an algorithm for the implement of encryption. The conventional block cipher is based on CPU, when encrypting a large file, it costs much resource of CPU and results the highly response latency, which will cause the low efficiency of the system. This system is based on the implementation of Advanced Encryption Standard, optimize AES algorithm for parallel processing by using GPU programming technology. Porting the algorithm to GPU platform to use the tremendous amount of cores to accelerate the progress of encryption and decryption and achieved a good acceleration in both ECB mode and CTR mode.
Key words: Data Security；Block Cipher；AES；GPU
目 录
摘要 1
关键词 1
Abstract 1
Key words 1
引言 1
1 前言 1
1．1 选题依据和研究背景 1
1．1．1 选题背景 1
1．1．2 研究现状 2
1．2 课题的目的和意义 3
2 开发平台与应用技术 3
2．1 C语言开发技术简述 3
2．2 GPU编程简介 3
2．2．1 GPU简介 3
2．2．2 CUDA简介 4
2．2．3 CUDA C编程 5
2．3 QT框架简介 5
3 相关理论和算法研究 5
3．1 AES加密算法 6
3．1．1 AES算法概述 6
3．1．2 AES算法的数学基础 6
3．1．3 AES算法结构 6
4 系统功能设计 8
4．1 系统流程设计 8
4．1．1 关键技术问题解决 8
4．2 文件加解密模块的设计 9
4．2．1 关键技术问题 9
5 系统功能实现 10
5．1 AES算法基本操作实现 10
5．1．1 有限域乘法 10
5．1．2 密钥扩展 10
5．1．3 字节替换 11
5．1．4 行位移 11
5．1．5 列混淆 11
5．2 AES对块的加解密实现 11
5．2．1 块加密 11
5．2．1 块解密 12
5．3 AES的两种工作模式的实现 13
5．3．1 ECB模式的实现 13
5．3．2 CTR模式的实现 14
5．4 在GPU平台上实现AES加密算法 15
5．4．1 GPU平台加密文件 16
5．4．2 GPU平台加密明文块 17