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passphrase

   Also found in: Wikipedia 0.03 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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Those included "dictionary" attacks, so-called because they generate a series of likely guesses at the network's decryption key or passphrase.
The new generation [of site authentication], such as RSA's PassMark, Passfaces, or even using passphrases vs.
By verifying a caller's identity in real-time, using a simple spoken passphrase, VocalPassword provides a convenient, secure method for enabling self-service transactions in the IVR or cost-effectively authenticating a caller to an enterprise's contact center.
 
 
 
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