About your IU passphrase

Important:
If you have not changed your passphrase in two years, IU requires that you do so. If you do not, your passphrase will expire and you will be unable to log into most IU services. See Why is my IU passphrase expiring?

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Passphrases at Indiana University

IU requires you to set an IU passphrase, which provides access to all of your IU accounts online, including email, Canvas, CAS, and One.IU.

Your passphrase should be a sentence with capitalization and punctuation.

Your passphrase must:

  • Contain at least 15 characters (127 characters maximum)
  • Use at least one uppercase letter, one lowercase letter, and one non-letter

Your passphrase must not:

  • Include your name or IU username

Passwords and passphrases

Passwords are short sequences of letters, numbers, and symbols that you enter to verify your identity to a system in order to access secure data or other resources. Passphrases operate on the same principle and are used in the same way, but differ from traditional passwords in two aspects:

  • Passphrases are generally longer than passwords. While passwords can frequently be as short as six or even four characters, passphrases have larger minimum lengths and, in practice, typical passphrases might be 20 or 30 characters long or longer. This greater length provides more powerful security; it is far more difficult for a cracker to break a 25-character passphrase than an eight-character password.
  • The rules for valid passphrases differ from those for passwords. Systems that use shorter passwords often disallow actual words or names, which are notoriously insecure; instead, your password is usually an apparently random sequence of characters. The greater length of passphrases, by contrast, allows you to create an easily memorizable phrase rather than a cryptic series of letters, numbers, and symbols.

For more on passphrases, including hints on making secure passphrases, see the University Information Security Office (UISO) page IU Passphrases.

This is document acpu in the Knowledge Base.
Last modified on 2016-07-14 15:49:10.

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