期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2013
卷号：4
期号：4
页码：330-333
语种：English
出版社：Ayushmaan Technologies
摘要：Parallel computing on clusters of workstations and personal computers has very high potential. In fact, recently, a MPI has been proposed as an industrial standard for writing portable message passing parallel programs. We focus on MPI as it is one of the most popular communication protocols for parallel computing on clusters. Since this communication run on public networks, security sensitive became a primary concern. To tackle this security issue, we develop a method DSHA – Digital Signature Hashing Algorithm for Message Passing Interface (MPI) implementation to preserve confidentiality of messages communicated among nodes of clusters. Here we integrated DSHA algorithms into the MPICH2 library with the standard MPI interface. MPI-application programmers can fully configure any confidentiality services in MPICHI2, because a secured configuration file in DSHA offers the programmers flexibility in choosing any cryptographic schemes and keys seamlessly. Our experiments show that overhead incurred by the confidentiality services in DSHA is marginal for messages. It also shows that security overhead can be significantly reduced in DSHA by high-performance clusters.
