6 citations · 10 across the 13 of their papers we have counts for
13 papers
A symmetric LWE-based Multi-Recipient Cryptosystem
Saikat Gope, Srinivasan Krishnaswamy, Chayan Bhawal
This article describes a post-quantum multirecipient symmetric cryptosystem whose security is based on the hardness of the LWE problem. In this scheme a single sender encrypts mult…
Information Security and Privacy in the Digital World: Some Selected Topics
Jaydip Sen, Joceli Mayer, Subhasis Dasgupta +16
In the era of generative artificial intelligence and the Internet of Things, while there is explosive growth in the volume of data and the associated need for processing, analysis,…
An iterative scheme for finite horizon model reduction of continuous-time linear time-varying systems
Kasturi Das, Srinivasan Krishnaswamy, Somanath Majhi
In this paper, we obtain the functional derivatives of a finite horizon error norm between a full-order and a reduced-order continuous-time linear time-varying (LTV) system. Based…
A Scheme to resist Fast Correlation Attack for Word Oriented LFSR based Stream Cipher
Subrata Nandi, Srinivasan Krishnaswamy, Pinaki Mitra
In LFSR-based stream ciphers, the knowledge of the feedback equation of the LFSR plays a critical role in most attacks. In word-based stream ciphers such as those in the SNOW serie…
H Optimal Model Order Reduction over a Finite Time Interval
Kasturi Das, Srinivasan Krishnaswamy, Somanath Majhi
For a time-limited version of the H norm defined over a fixed time interval, we obtain a closed form expression of the gradients. After that, we use the gradients to propose a…
Near Optimal Interpolation based Time-Limited Model Order Reduction
Kasturi Das, Srinivasan Krishnaswamy, Somanath Majhi
This paper presents an interpolatory framework for time-limited optimal model order reduction named Limited Time Iterative Rational Krylov Algorithm (LT-IRKA). The algorithm…
On Passivity, Feedback Passivity, And Feedback Passivity Over Erasure Network: A Piecewise Affine Approximation Approach
Abhijit Mazumdar, Srinivasan Krishnaswamy, Somanath Majhi
In this paper, we deal with the problem of passivity and feedback passification of smooth discrete-time nonlinear systems by considering their piecewise affine approximations. Suff…
The application of -LFSR in Key-Dependent Feedback Configuration for Word-Oriented Stream Ciphers
Subrata Nandi, Srinivasan Krishnaswamy, Behrouz Zolfaghari +1
In this paper, we propose and evaluate a method for generating key-dependent feedback configurations (KDFC) for -LFSRs. -LFSRs with such configurations can be applied to any…
Optimal Control of Jump Systems Over Multiple Lossy Communication Channels
Abhijit Mazumdar, Srinivasan Krishnaswamy, Somanath Majhi
In this paper, we consider the optimal control problem for a Markovian jump linear system (MJLS) over a lossy communication network. It is assumed that the controller…
Fully Homomorphic Encryption based on Multivariate Polynomial Evaluation
Uddipana Dowerah, Srinivasan Krishnaswamy
We propose a multi-bit leveled fully homomorphic encryption scheme using multivariate polynomial evaluations. The security of the scheme depends on the hardness of the Learning wit…
A Somewhat Homomorphic Encryption Scheme based on Multivariate Polynomial Evaluation
Uddipana Dowerah, Srinivasan Krishnaswamy
We propose a symmetric key homomorphic encryption scheme based on the evaluation of multivariate polynomials over a finite field. The proposed scheme is somewhat homomorphic with r…
Analysis of Statistical Properties of Nonlinear Feedforward Generators Over Finite Fields
Suman Roy, Srinivasan Krishnaswamy
Due to their simple construction, LFSRs are commonly used as building blocks in various random number generators. Nonlinear feedforward logic is incorporated in LFSRs to increase t…
On Multisequences and their extensions
Srinivasan Krishnaswamy, Harish K. Pillai
In this paper we deal with the dimension of multisequences and related properties. For a given multisequence W and an m tuple of positive integers R, we define the R extension of W…