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This paper explores the usage of Blockchain Technology for land records management in India.The paper highlights issues like minimal transparency, accountability, incoherent data sets with different Government Departments pertaining to the same piece of land and delays in the current Land Records Management process and how these problems can be overcome using Blockchain Technology. The paper describes the current process of land records maintenance and land registration in the country. The paper also discusses various challenges encountered during implementation of the Blockchain Technology like public key infrastructure and Internet, privacy rules and security issues. Finally, the paper illustrates system design using Blockchain Technology for implementation of Land Titling system in the country, so that land titles are tamper-proof and provides authentic and conclusive rights on ownership.

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In this paper, we present a novel method to construct cryptographically strong bijective substitution-boxes based on the complicated dynamics of a new hyperchaotic system. The new hyperchaotic system was found to have good characteristics when compared with other systems utilized for S-box construction. The performance assessment of the proposed S-box method was carried out based on criteria, such as high nonlinearity, a good avalanche effect, bit-independent criteria, and low differential uniformity. The proposed method was also analyzed for the batch-generation of 8 × 8 S-boxes. The analyses found that through a proposed purely chaos-based method, an 8 × 8 S-box with a maximum average high nonlinearity of 108.5, or S-boxes with differential uniformity as low as 8, can be retrieved. Moreover, small-sized S-boxes with high nonlinearity and low differential uniformity are also obtainable. A performance comparison of the anticipated method with recent S-box proposals proved its dominance and effectiveness for a strong bijective S-box construction.

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