passphrase
A sequence of words or other text used to control access to a computer system, program, or data. More secure than a simple password.
Please enter your passphrase to log in.
This encryption software recommends a long passphrase.
Compound of 暗証 (あんしょう, 'password; code') and フレーズ ('phrase'), a direct translation of the English computing term 'passphrase'.