Quantum oblivious transfer and bit commitment protocols based on two non-orthogonal states coding
This work addresses quantum cryptography protocols for secure communication, but it is incremental as it builds on existing methods and reveals security limitations.
The paper presents quantum oblivious transfer protocols using non-orthogonal states coding and constructs bit commitment protocols on top of them, but finds that while the OT protocols are unconditionally secure, the bit commitment protocols are not secure against attacks similar to those in no-go theorems.
Oblivious transfer protocols (R-OT and OT$_{1}^{2}$) are presented based on non-orthogonal states transmission, and the bit commitment protocols on the top of OT$_{1}^{2}$ are constructed. Although these OT protocols are all unconditional secure, the bit commitment protocols based on OT protocols are not secure against attack similar to that presented by no-go theorem.