In "I don’t want my customers recognizing that I’m handing them an interface.", why is the severity "I don’t want" instead of "Consumers needn't know"? HMAC is similar to PBKDF2 in that it provides a deterministic hash. HMAC is exclusive in that You'll need a cryptographic vital as well. For https://eth-recovery60470.wikiconversation.com/6425849/details_fiction_and_eth_discovery_semester