A Weak Quantum Oblivious Transfer

TL;DR

This paper introduces a weak quantum oblivious transfer protocol that avoids the need for long-term quantum memory or entanglement, highlighting differences between classical and quantum OT impossibilities.

Contribution

It proposes a practical weak OT protocol that circumvents some limitations of traditional quantum OT, requiring minimal quantum resources.

Findings

The protocol does not need long-term quantum memory.

It operates without entanglement or complex quantum computations.

It reveals differences between classical and quantum OT impossibility results.

Abstract

Due to the commonly known impossibility results, information theoretic security is considered impossible for oblivious transfer (OT) in both the classical and the quantum world. In this paper, we proposed a weak version of the all-or-nothing OT. In our protocol the honest parties do not need long term quantum memory, entanglements, or sophisticated quantum computations. We observe some difference between the classical and quantum OT impossibilities.