Its unclear from the article, but it sounds like what happened is they seized some servers that had address info of some drug dealers.
Zero knowledge proofs aren't really relavent. If the market works in such a way it needs the address, zkp's wont change that. If its just a middle man, then old fashioned public key crypto would have been sufficient. (If the site was taken over for an active attack, then MITM is a possibility, but there are things you can do to make that detectable if you have out of band communications)
Zero knowledge proofs aren't really relavent. If the market works in such a way it needs the address, zkp's wont change that. If its just a middle man, then old fashioned public key crypto would have been sufficient. (If the site was taken over for an active attack, then MITM is a possibility, but there are things you can do to make that detectable if you have out of band communications)