过程识别技术及相关参数的提取是二进制翻译中过程调用恢复的基础。为较好实现对过程的识别,首先设计了针对GCC编译的ELF(executable and linkable format)文件的过程识别技术,取得了良好的效果。不过随着研究的深入,要求对C编译器和ICC...过程识别技术及相关参数的提取是二进制翻译中过程调用恢复的基础。为较好实现对过程的识别,首先设计了针对GCC编译的ELF(executable and linkable format)文件的过程识别技术,取得了良好的效果。不过随着研究的深入,要求对C编译器和ICC(Intel C++compiler)编译器同时具有良好的支持,但在测试中发现这种识别技术在处理ICC编译的ELF程序指令流时存在的一些问题,为此提出了改进算法,这个算法已经在IA-64-Alpha反编译中实现,从而使系统对C编译器和ICC编译器编译的ELF文件都能进行正确的过程识别和参数提取。展开更多
采用静态行为检测的方法检测Android平台的恶意软件,避免手机恶意软件可能导致用户隐私的泄露、电池耗尽和发送垃圾短信造成的高额话费开支。通过静态分析ELF(executable and linkable format,可执行可链接)文件的符号信息,从动态链接...采用静态行为检测的方法检测Android平台的恶意软件,避免手机恶意软件可能导致用户隐私的泄露、电池耗尽和发送垃圾短信造成的高额话费开支。通过静态分析ELF(executable and linkable format,可执行可链接)文件的符号信息,从动态链接重定位表中提取Android程序的函数调用信息,作为程序的行为特征。最后,使用Nearest Neighbor,Naive Bayes和SMO(结构化查询语言管理对象)3种分类模型对样本进行了分类。分类结果表明,采用静态ELF文件分析的方法,可以有效地检测Android恶意软件。展开更多
A scheduling scheme is proposed to reduce execution time by means of both checkpoint sharing and task duplication under a peer-to-peer(P2P) architecture. In the scheme, the checkpoint executed by each peer(i.e., a res...A scheduling scheme is proposed to reduce execution time by means of both checkpoint sharing and task duplication under a peer-to-peer(P2P) architecture. In the scheme, the checkpoint executed by each peer(i.e., a resource) is used as an intermediate result and executed in other peers via its duplication and transmission. As the checkpoint is close to a final result, the reduction of execution time for each task becomes higher, leading to reducing turnaround time. To evaluate the performance of our scheduling scheme in terms of transmission cost and execution time, an analytical model with an embedded Markov chain is presented. We also conduct simulations with a failure rate of tasks and compare the performance of our scheduling scheme with that of the existing scheme based on client-server architecture. Performance results show that our scheduling scheme is superior to the existing scheme with respect to the reduction of execution time and turnaround time.展开更多
文摘过程识别技术及相关参数的提取是二进制翻译中过程调用恢复的基础。为较好实现对过程的识别,首先设计了针对GCC编译的ELF(executable and linkable format)文件的过程识别技术,取得了良好的效果。不过随着研究的深入,要求对C编译器和ICC(Intel C++compiler)编译器同时具有良好的支持,但在测试中发现这种识别技术在处理ICC编译的ELF程序指令流时存在的一些问题,为此提出了改进算法,这个算法已经在IA-64-Alpha反编译中实现,从而使系统对C编译器和ICC编译器编译的ELF文件都能进行正确的过程识别和参数提取。
基金supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2012R1A1A4A0105777)supported by the MSIP (Ministry of Science, ICT and Future Planning), Korea, under the ITRC (Information Technology Research Center) support program (NIPA-2013-H030113-4007) supervised by the NIPA (National IT Industry Promotion Agency)
文摘A scheduling scheme is proposed to reduce execution time by means of both checkpoint sharing and task duplication under a peer-to-peer(P2P) architecture. In the scheme, the checkpoint executed by each peer(i.e., a resource) is used as an intermediate result and executed in other peers via its duplication and transmission. As the checkpoint is close to a final result, the reduction of execution time for each task becomes higher, leading to reducing turnaround time. To evaluate the performance of our scheduling scheme in terms of transmission cost and execution time, an analytical model with an embedded Markov chain is presented. We also conduct simulations with a failure rate of tasks and compare the performance of our scheduling scheme with that of the existing scheme based on client-server architecture. Performance results show that our scheduling scheme is superior to the existing scheme with respect to the reduction of execution time and turnaround time.
