Santosh K. Shrivastava

Bio: Santosh K. Shrivastava is an academic researcher from Newcastle University. The author has contributed to research in topics: Middleware (distributed applications) & Fault tolerance. The author has an hindex of 33, co-authored 232 publications receiving 4261 citations. Previous affiliations of Santosh K. Shrivastava include University of Newcastle & Universities UK.

An overview of the Arjuna distributed programming system

Abstract: The use of the objects and actions computational model to develop Arjuna is discussed, and its system architecture is described. An overview of Arjuna's implementation is given. An example is provided to show how to construct Arjuna applications. >

Newtop: a fault-tolerant group communication protocol

Abstract: A general purpose group communication protocol suite called Newtop is described. It is assumed that processes can simultaneously belong to many groups, group size could be large, and processes could be communicating over the Internet. Asynchronous communication environment is therefore assumed where message transmission times cannot be accurately estimated, and the underlying network may well get partitioned, preventing functioning processes from communicating with each other. Newtop can provide causality preserving total order delivery to members of a group, ensuring that total order delivery is preserved for multi-group processes. Both symmetric and asymmetric order protocols are supported, permitting a process to use say symmetric version in one group and asymmetric version in other.

Reliable Computer Systems

Abstract: At present, the fault tolerance community is hampered by using a set of conflicting terms to refer to closely related fault tolerance concepts. This paper presents informal, but precise, definitions and terminology for these concepts. In particular, the terms fault, error and failure are carefully defined and distinguished. The aim is to promote discussion in the hope that an agreed terminology will emerge.

The Design and Implementation of Arjuna

Abstract: Arjuna is an object-oriented programming system implemented entirely in C++, that provides a set of tools for the construction of fault-tolerant distributed applications. Arjuna exploits features found in most object-oriented languages (such as inheritance) and only requires a limited set of system capabilities commonly found in conventional operating systems. Arjuna provides the programmer with classes that implement atomic transations, object level recovery, concurrency control and persistence. These facilities can be overridden by the programmer as the needs of the application dictate. Distribution of an Arjuna application is handled using stub generation techniques that operate on the original C++ class headers normally used by the standard compiler. The system is portable, modular and flexible. The paper presents the design and implementaion details of Arjuna and takes a retrospective look at the system based on the application building experience of users.

Constructing Dependable Web Services

Abstract: This paper discusses the issues involved in supporting high-volume, highly-reliable, Web services. Such services pose a number of diverse technical challenges. The paper discusses how recent research ideas from distributed computing can be deployed at the various levels of the architecture to yield an overall solution.

I and i

Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

Basic concepts and taxonomy of dependable and secure computing

Abstract: This paper gives the main definitions relating to dependability, a generic concept including a special case of such attributes as reliability, availability, safety, integrity, maintainability, etc. Security brings in concerns for confidentiality, in addition to availability and integrity. Basic definitions are given first. They are then commented upon, and supplemented by additional definitions, which address the threats to dependability and security (faults, errors, failures), their attributes, and the means for their achievement (fault prevention, fault tolerance, fault removal, fault forecasting). The aim is to explicate a set of general concepts, of relevance across a wide range of situations and, therefore, helping communication and cooperation among a number of scientific and technical communities, including ones that are concentrating on particular types of system, of system failures, or of causes of system failures.

Basic Concepts and Taxonomy of Dependable and Secure Computing

Abstract: This paper gives the main definitions relating to dependability, a generic concept including a special case of such attributes as reliability, availability, safety, integrity, maintainability, etc. Security brings in concerns for confidentiality, in addition to availability and integrity. Basic definitions are given first. They are then commented upon, and supplemented by additional definitions, which address the threats to dependability and security (faults, errors, failures), their attributes, and the means for their achievement (fault prevention, fault tolerance, fault removal, fault forecasting). The aim is to explicate a set of general concepts, of relevance across a wide range of situations and, therefore, helping communication and cooperation among a number of scientific and technical communities, including ones that are concentrating on particular types of system, of system failures, or of causes of system failures.

[서평]「Applied Cryptography」

Abstract: The objective of this paper is to give a comprehensive introduction to applied cryptography with an engineer or computer scientist in mind. The emphasis is on the knowledge needed to create practical systems which supports integrity, confidentiality, or authenticity. Topics covered includes an introduction to the concepts in cryptography, attacks against cryptographic systems, key use and handling, random bit generation, encryption modes, and message authentication codes. Recommendations on algorithms and further reading is given in the end of the paper. This paper should make the reader able to build, understand and evaluate system descriptions and designs based on the cryptographic components described in the paper.