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arXiv 0710.4803cs.CR
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总线加密硬件引擎:现有技术综述

Hardware Engines for Bus Encryption: A Survey of Existing Techniques

R. Elbaz, L. Torres, G. Sassatelli, P. Guillemin, C. Anguille, M. Bardouillet, C. Buatois, J. B. Rigaud

摘要:

由便携式和嵌入式设备提供的应用和服务的范围不断扩大,带来了安全问题的新维度。大多数嵌入式系统(付费电视、PDA、手机等)使用外部存储器。因此,主要问题是数据和指令在总线上以清晰的形式在内存(RAM)和CPU之间不断交换。该存储器可以包含终端用户或内容提供方愿意保护的机密数据,如商业软件或私人内容。本文的目标是清楚地描述处理器-内存总线通信在这方面的问题以及通过加密保护通信通道所应用的现有技术-本文将广泛讨论这些解决方案所暗示的性能开销。

英文摘要:

The widening spectrum of applications and services provided by portable and embedded devices bring a new dimension of concerns in security. Most of those embedded systems (pay-TV, PDAs, mobile phones, etc...) make use of external memory. As a result, the main problem is that data and instructions are constantly exchanged between memory (RAM) and CPU in clear form on the bus. This memory may contain confidential data like commercial software or private contents, which either the end-user or the content provider is willing to protect. The goal of this paper is to clearly describe the problem of processor-memory bus communications in this regard and the existing techniques applied to secure the communication channel through encryption - Performance overheads implied by those solutions will be extensively discussed in this paper.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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