7. Bob < SIMPLE ✦ >

: In other variations, Bob divides a set of bits into "good" and "bad" subsets and sends this information to Alice to help her retrieve a specific record. 2. Digital Signatures and Atomic Swaps

In modern quantum private query protocols designed to protect user privacy, typically involves Bob performing operations on a database based on Alice's input. For example: 7. Bob

: In some protocols, Step 7 is when Bob transforms a raw key string into a matrix or shifts his key to encrypt the database using a one-time pad. : In other variations, Bob divides a set