Application of mixed-state techniques to other cryptographic primitives

Determine whether the mixed-state techniques developed for quantum Rabin oblivious transfer can be used to construct improved protocols for other cryptographic primitives for which information-theoretic security is impossible.

Background

The paper demonstrates improved performance for several mixed-state quantum Rabin oblivious-transfer protocols relative to classical and pure-state constructions. It concludes by identifying the broader applicability of these techniques as unresolved, particularly for cryptographic primitives where perfect information-theoretic security cannot be achieved.