Chor-Rivest Knapsack Cryptosystem in a Post-quantum World

The threat posed to “classical” cryptography by the developing field of quantum computers and quantum algorithms running on them have set on fire researchers on their quest for new quantum-resistant problems that could come to the rescue, thus giving rise to the new field of post-quantum cryptography. In this work we present the state of the art of current post-quantum proposals, closely following the NIST Call for Candidates, and suggest a knapsack-problem-based one, not considered so far, whose key lengths and security could benefit from the development of quantum technology.