AES在安全信息设备Cortex-M3上的快速实现

Rini Wisnu Wardhani, Dion Ogi, Mohamad Syahral, P. D. Septono
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引用次数: 5

摘要

高级加密标准AES (Advanced Encryption Standard)成为保护敏感信息的加密标准。随着便携式和无线设备的使用越来越多,以及嵌入式系统对信息安全的要求越来越高,促使人们努力寻找基于软件的快速AES加密/解密实现,能够在处理器速度、代码空间、能源使用等资源受限的环境下运行,特别是那些具有32位ARM Cortex-M3处理器的便携式设备。在本文中,我们提出了一个在ARM Cortex-M3处理器上实现AES的最小内存,这将有助于在低成本应用中部署它。该算法使用LPCXpresso IDE编译,目标为ARM LPC1769处理器板。本文给出了密钥长度为128位时的结果。AES加密后的密码语音通过通信模块发送到另一个节点,通信模块接收到的密码语音通过AES解密得到明文。
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Fast implementation of AES on Cortex-M3 for security information devices
The Advanced Encryption Standard (AES) became the standard for encryption to protect the sensitive information. With the increasing use of portable and wireless devices and demanding information security needs in embedded systems, prompted efforts to find fast software based implementation of AES encryption/decryption capable of running on resource constrained environment in terms of processor speed, code space, energy usage and in particular those portable devices that have 32-bits ARM Cortex-M3 processor. In this paper, we propose an implementation of AES on ARM Cortex-M3 processor with minimum memory will be useful for deploying it in low cost applications. The algorithm is compiled using LPCXpresso IDE targeting into an ARM LPC1769 processor board. The results are presented in this paper for key length of 128 bits. After AES encryption the cipher voice is sent through communication module to another node, while receiving cipher voice through communication module the plain text is obtained by AES decryption.
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