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Informative Information for the Uninformed | ![]() |
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Next: Rotating and Incrementing Elements
Up: Advanced Elements
Previous: Repeating Elements
Contents
Variable ElementsMPFs can yield more complex passwords by including variable elements. For example, the MPF designer can prepend the characters "p:" or "b:" to the beginning of the to include an element indicating whether the target system is a personal or business.
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To further expand this example, consider a user who performs system administration work for multiple entities. In this case the variable element being prepended could be the first letter of the system's managing entity:
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To illustrate this concept, the use of the same MPF for a super-user and an unprivileged user account on the same system may result in passwords that only differ slightly. Including a variable element can help to mitigate this similarity. Prepending the characters ``0:'' or ``1:'' to the resultant password to indicate super-user versus unprivileged user access. Respectively, by inclusion of an additional variable element in the MPF will result in the password's increased complexity as well as indicating class of access:
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Variable elements are not required to prepend the beginning of the formula as with the examples above; they can be easily appended or inserted anywhere within the MPF.
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