the.com/zero knowledge
proving you know the password without ever whispering it.
means a cryptographic method letting one party prove a statement is true without revealing any information beyond the fact that it is true.
from coined in 1985 by goldwasser, micali, and rackoff in a paper on interactive proof systems, using the cave analogy: prove you know the magic word by opening the right door, never saying the word aloud.
three propertiescompleteness, soundness, and zero-knowledge, all required
blockchain usezcash hides transaction amounts using zk-snarks
cave analogyali baba's cave illustrates the entire concept
no trust neededverifier learns nothing, yet becomes fully convinced