Alice & Bob: Quiz about public key encryption

A short quiz about cryptographic key selection

1. Alice & Bob: Which key should Bob use to send a secure/secret message to Alice? Bob’s Public Key Bob’s Private Key Alice’s Public Key Alice’s Private Key

2. Alice & Bob: Which key should Bob use to send a secure/secret message to Alice? (Solution) Bob’s Public : Alice won’t have access to Bob’s Private key (which is kept “private”) in order to decrypt the msg Bob’s Private : Everyone can decrypt with Bob’s Public key (which is publicly available) so the msg is not secret Alice’s Pubic : Alice can decrypt using Alice’s Private key (This is the ONLY key that works) Alice’s Private : Bob won’t have access to Alice’s Private key (which is kept “private”/only accessible to Alice)