(cryptography) key

key; also pr. [yao4]

(cryptography) public key

keys of authority

(cryptography) private key

the key (to solving a problem etc); (Tw) (cryptography) key

key and lock; (fig.) strategic place

to make a key

keycard

keychain

master key; skeleton key; passkey

private key (in encryption)

One key opens one lock.; There is a different solution for each problem. (idiom)