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passphrase

   Also found in: Wikipedia 0.04 sec.
(operating system)passphrase - A string of words and characters that you type in to authenticate yourself. Passphrases differ from passwords only in length. Passwords are usually short - six to ten characters. Passphrases are usually much longer - up to 100 characters or more. Their greater length makes passphrases more secure. Modern passphrases were invented by Sigmund N. Porter in 1982.

Phil Zimmermann's popular encryption program PGP, for example, requires you to make up a passphrase that you then must enter whenever you sign or decrypt messages.

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The S1100's PSD-Lock technology requires a mandatory passphrase in order to "unlock" the device and access data.
Lexar Begins Shipping its Award-Winning SAFE PSD S1100 Secure ... by Business Wire
When they log in and see their PassMark and PassPhrase, members know they're on our legitimate home banking site," Forster said.
Multi-Factor Authentication Launches for USERS' Credit Union Clients by Business Wire
Lexar's PSD-Lock technology requires end-users to enter a preset passphrase to "unlock" the device in order to access data.
Lexar to Debut a Secure Enterprise Class Personal Storage Device; ... by Business Wire
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