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Towards trustworthy Grids: fundamentals of computer security and Grid security

Author(s): H. Liu & X. Lin Abstract: Security issues exist in the whole life cycle of the trustworthy grids. They are not only the value-added points of grids but also the lifelines of grids. The essential of the trustworthy grids rests with using web services to integrate different interoperability security components for the purpose of defining, managing and enforcing trust through virtual organizations. This chapter presents a glimpse on the fundamentals of computer security and grid security, including the semantics of security and threat, policy and mechanism, cryptography and checksum, key management, cryptographic key infrastructure, stream cipher, block cipher, TLS, IPsec, GSI and CAS, grid security services, web services specifications and standards, risk analysis and threat model, etc. The material focuses on the theoretical aspects of these building blocks that can be employed to build the trustworthy grids. 1 Importance of Grid security Grids are promised and shaped to be the next generation platforms for scientists, engineers, businessmen, every walk of life, and ordinary Internet surfers to solve large-scale, complex, interdisciplinary, data, computation and services oriented problems using CPU, data storage, instrumentation and human resources geographically distributed across some virtual organizations [1–3]. Its vivid and famous logo is to allow users to achieve the sharing resources and services as easily as one can get the electrical power through a wall socket. Grid security concerns all security aspects of the gird systems. As shown in fig. 1, security issues exist in the whole life cycle of designing, implementing, deploying and managing the grid systems. Firstly, grid security must assure that the resources are controlled by their providers and subjected to all kinds of policies. Secondly, grid security must facilitate coordination between different virtual ... Pages: 31 Size: 49,624 kb Paper DOI: 10.2495/1-84564-055-1/06

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