Editing Passphrase (section)

{{Use American English|date = March 2019}}
{{Short description|Sequence of words used to gain access}}
{{Use mdy dates|date = March 2019}}
[[File:Bitwarden Desktop 2024.12.1 passphrase generator screenshot.webp|thumb|upright=1.2|Passphrase generator in [[Bitwarden]]]]
A '''passphrase''' is a sequence of words or other text used to control access to a [[computer]] system, program or [[data]]. It is similar to a [[password]] in usage, but a passphrase is generally longer for added security. Passphrases are often used to control both access to, and the operation of, [[Cryptography|cryptographic]] programs and systems, especially those that derive an [[encryption]] key from a passphrase. The origin of the term is by analogy with ''password''. The modern concept of passphrases is believed to have been invented by Sigmund N. Porter in 1982.<ref name="w755">{{cite journal | last=Porter | first=Sigmund N. | title=A password extension for improved human factors | journal=Computers & Security | volume=1 | issue=1 | date=1982 | doi=10.1016/0167-4048(82)90025-6 | pages=54–56}}</ref>