8 papers
Is entanglement necessary to have unconditional security in quantum bit commitment ?
Arindam Mitra
A simple un-entanglement based quantum bit commitment scheme is presented. Although commitment is unconditionally secure but concealment is not.
A simple unbreakable code
Arindam Mitra
A simple unbreakable cipher system is presented which uses the concept of "pseudo-bits" that has never been used in either classical or quantum cryptography.
Perfectly secure cipher system
Arindam Mitra
We present a perfectly secure cipher system based on the concept of fake bits which has never been used in either classical or quantum cryptography.
Entanglement versus disentanglement: Quantum Cryptography
Arindam Mitra
In quantum information, the role of entanglement and disentanglement is itself a subject of research and debate. Earlier works on quantum cryptography have almost established that…
Unconditionally secure quantum bit commitment is simply possible
Arindam Mitra
Mayers, Lo and Chau proved unconditionally secure quantum bit commitment is impossible. It is shown that their proof is valid only for a particular model of quantum bit commitment…
Complete Entanglement-Based Communication With Security
Arindam Mitra
If, due to some catastrophe, our classical communication system is destroyed but quantum entangled state survived, in that entanglement age, it is widely believed, the whole world…