User and system passwords

Assignment Help Basic Computer Science
Reference no: EM13839930

Application: Password Scan

User and system passwords, in theory, should be relatively easy to remember and be hard to guess (which includes avoiding common words susceptible to a "dictionary" attack). Many sites require that passwords conform to rules such as:

  • minimum length (usually at least 6 or 8 characters)
  • include both upper and lower case letters
  • include at least one digit
  • include at least one special characters ($, #, @, %, !, etc.)

Constructing such a password that is reasonably easy to remember is generally not difficult. For example, here are some passwords that are not dictionary words and that follow the rules mentioned above:

  • SprBwl#44
  • Dinner@8
  • $64Dollars
  • NY.Mets.1969

Passwords should never contain character strings associated with the user, such as birth dates/years, personal names, addresses, user IDs, or Social Security numbers. Which of the following passwords are not allowable under these rules? (Assume an 8-character minimum length.) Explain why each does not meet the required criteria.

  • BigDog
  • Christmas2010
  • JohnSmith.1963
  • Tea4Two
  • bQj3&&5k
  • 12345678
  • aaaaaaaa
  • password
  • banana
  • Baltimore
  • 214MainStreet
  • June15-1974
  • RollingStones

Now create five passwords that look very different but that use the above rules. Some sites put restrictions on passwords, such as:

  • No spaces
  • No special characters
  • Maximum length (usually 8 characters)

Additionally, some systems prevent the reuse of old passwords or impose other restrictions such as maximum password lifetime (often 30 or 90 days). As a result, you cannot have just one password that you use everywhere. Aside from the risk of using the same password at multiple sites, write a 1- to 2-page paper that proposes a strategy that a user could follow to manage frequently changing passwords across a variety of sites.In APA Format.

Reference no: EM13839930

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