Security aspects of partial reconfiguration in software defined radio

随着fpga变得越来越强大和更节能，在软件定义无线电（SDR）领域的接受度也越来越高。在SDR中，资源的有效共享是实现多波形的关键。部分重新配置（Partial Reconfiguration， PR）支持这种技术。PR已经被证明可以在大规模问题上工作，并且现在被一些FPGA制造商很好地支持。PR不仅为资源的动态共享开辟了道路，而且还允许安全敏感算法的实现。安全应用程序具有许多可以通过PR技术解决的需求，例如边界监视和执行。然而，由于动态更改各种算法的关键部分的可能性，PR也提出了许多重要的安全问题。本项目将重点关注两个不同但相似的问题。它将引入和验证机制，以监视和管理安全算法的边界条件，例如禁止进出安全盒的不必要通信。它还将介绍监控动态下载代码到FPGA的机制。为了研究这些机制，将构建一个安全框架测试台。

As FPGAs become more powerful and more power efficient there acceptance grows in the world of software defined radio (SDR). In SDR efficient sharing of resources is critical to the implementation of multiple waveforms. Partial Reconfiguration (PR) enables such technology. PR has been shown to work on large scale problems and is now well supported by some FPGA manufacturers.PR opens not only the way to the dynamic sharing of resources but also permits the implementation of security sensitive algorithms. Secure applications have many requirements that can be addressed by PR technology such as boundary monitoring and enforcing. PR however also raises a number of important security aspects due to the possibility of dynamically altering key portions of various algorithms.This project will focus on two distinct but similar problems. It will introduce and validate mechanisms to monitor and police the boundary conditions of secure algorithms such as to prohibit unwanted communications in and out of the secure box. It will also introduce mechanisms to monitor the dynamic download of code into the FPGA. A security framework test bench will be build in order to investigate these mechanisms.