The image below shows an outline of a chain of custody, based on the zero knowledge proof.
This outline is very well laid out and makes it easy to understand how a zero-knowledge test can be used in a traditional system.
Zero Knowledge Proof (ZKP) is a method by which one party (the prover) can prove to another party (the verifier) that a given statement is true, while the prover avoids conveying any additional information apart from the fact that the statement is indeed true.
A Zero-knowledge proof (ZKP) method must satisfy these criteria:
Completeness: If the information provided by the prover is true, then a ZKP method must enable the verifier to verify that the prover is telling the truth.
Soundness: If the information provided by the prover is false, then a ZKP method must allow the verifier to refute that the prover is telling the truth.
Zero Knowledge Proof: The method must reveal to the verifier nothing else than whether the prover is telling the truth or not.
Is ZKP something your company makes use of already?
Credit: Jesus H.