26 citations · 44 across the 4 of their papers we have counts for
4 papers
Deutschian closed timelike curves can create entanglement
Subhayan Roy Moulick, Prasanta K. Panigrahi
We study the nature of entanglement in presence of Deutschian closed timelike curves (D-CTCs) and we observe that qubits traveling along a D-CTC allow unambiguous discrimination of…
Efficient Controlled Quantum Secure Direct Communication Protocols
Siddharth Patwardhan, Subhayan Roy Moulick, Prasanta K. Panigrahi
We study controlled quantum secure direct communication (CQSDC), a cryptographic scheme where a sender can send a secret bit-string to an intended recipient, without any secure cla…
Signing Perfect Currency Bonds
Subhayan Roy Moulick, Prasanta K. Panigrahi
We propose the idea of a Quantum Cheque Scheme, a cryptographic protocol in which any legitimate client of a trusted bank can issue a cheque, that cannot be counterfeited or altere…
Reliable SVD based Semi-blind and Invisible Watermarking Schemes
Subhayan Roy Moulick, Siddharth Arora, Chirag Jain +1
A semi-blind watermarking scheme is presented based on Singular Value Decomposition (SVD), which makes essential use of the fact that, the SVD subspace preserves significant amount…