An Effective Private Data storage and Retrieval System using Secret sharing scheme based on Secure Multi-party Computation

Privacy of the outsourced data is one of the major challenge.Insecurity of the network environment and untrustworthiness of the service providers are obstacles of making the database as a service.Collection and storage of personally identifiable information is a major privacy concern.On-line public databases and resources pose a significant risk to user privacy, since a malicious database owner may monitor user queries and infer useful information about the customer.The challenge in data privacy is to share data with third-party and at the same time securing the valuable information from unauthorized access and use by third party.A Private Information Retrieval(PIR) scheme allows a user to query database while hiding the identity of the data retrieved.The naive solution for confidentiality is to encrypt data before outsourcing.Query execution,key management and statistical inference are major challenges in this case.The proposed system suggests a mechanism for secure storage and retrieval of private data using the secret sharing technique.The idea is to develop a mechanism to store private information with a highly available storage provider which could be accessed from anywhere using queries while hiding the actual data values from the storage provider.The private information retrieval system is implemented using Secure Multi-party Computation(SMC) technique which is based on secret sharing. Multi-party Computation enable parties to compute some joint function over their private inputs.The query results are obtained by performing a secure computation on the shares owned by the different servers.Comment: Data Science & Engineering (ICDSE), 2014 International Conference, CUSA

Genetic characterization and protein profiling of green mussel (Perna viridis (Linnaeus, 1758)) and brown mussel (Perna indica Kuriakose and Nair, 1976)

The marine mussels of India are mainly of two species: Perna viridis [Linnaeus, 1758) (green mussel) and Perna indica Kuriakose and Nair (1976) [brown mussel). In addition to this, along the south west coast (Kollam coast f Kerala), a third type of mussel called parrot mussel has also been reported. The present study was undertaken for genetic characterisation and dentification of distinct stocks if any, within green as well as brown mussels, From both east and west coast, using shell morphometrics and molecular markers. Stock identification using shell morphometrics were attempted with Principal Component Analysis and Canonical Discriminant function Analysis, whereas, molecular methods used were protein electrophoresis (Native - Poly Acrylamide Gel Electrophoresis) and Randomly Amplified Polymorphic DNAPolymerase Chain Reaction (RAPD-PCR). The shell morphometrics as well as Native PAGE and RAPD-PCR profiles gave concordant results indicating high intraa species homogeneity and low level of genetic differentiation among populations of both green and brown mussels. Genetic characterisation using RAPD markers could bring out the genetic variability within both the populations. Elucidation of the genetic identity of parrot mussel as to whether it is a true hybrid of green and brown mussel, or only a colour variant of any of them was also done using RAPD, shell morphometrics, protein electrophoresis (native PAGE, SDS (Sodium Dodecyl Sulphate) PAGE and allozymes) and mitochondria1 (mt) DNA gene (Cytochrome oxidase 1) analysis. The study concluded that the parrot mussel is not a hybrid of the two, but only a colour variant of the brown mussel. An initial attempt to resolve the taxonomic ambiguity of P.indica that it is only a synonym of globally distributed Perna perna, as suggested by some of the previous workers has also been made in this study using COI regions of mt DNA. As P. indica revealed only 5% divergence from P, perna, it was concluded that P. indica need not be relegated as a synonym of P.pern

Identity Crisis: An Analysis of V. S Naipaul’s A House for Mr. Biswas

The Indian diasporic writings de signate the multi-cultural space of immigrants and extend a genre of a divergent Indian cultural discourse which depicts their struggles The concept of rootlessnes dislocation fragmented thoughts and memories of homeland and their longing to go back to their motherland all could be the theme of disporic writings The diasporic writers or immigrant writers stand in-between two cultural scenarios in the process of moving from one culture to another and the same dual culture drives a wedge between the nation and the self Even though they are profoundly associated with their hereditary customs traditions language and religion they also focus on alienation hybridisation marginalization and local community life from the margins T he diasporic writers are trapped in-between two cultures and the readers of both Western and Indian contemplate the west-centric vision and cultural validity of India respectively in the present scenario of literary narratives in the existence The complexity in the dislocations of immigrant writers contemplating their memories of their mother land the breakup of their family relationship their homelessness cultural myths intensified the question of identity in their life which they continued living in an alien environmen

A day in the life of a Geographer: ‘lone’, black, female

This piece is a narrative representation of the experience of being black and female in the discipline of Geography in the UK and beyond. The aim is to share an ethnographic research on race in Geography, based on day-to-day experience in the academy. The piece expresses some of the morphologies of black geographical life in everyday academia. The material has originally been shared in coaching and mentoring relationships with me. The quotes included have been sanctioned for use in this particular piece and were sent to me in individual emails in January 2017