Generating a Master Password manually

If your installation does not include the CICS interface, you must calculate the master password manually. It is calculated from a combination of an Installation Variable (which defaults to 246135) and the IPL date. The IPL date can be displayed with the MVS command D IPLINFO. Below is the algorithm for the master password calculation:

  1. Add the IPL date (in the form of YYMMDD) to the numeric portion of the Installation Variable, consisting of six digits, creating a possible seven digit number of which the low order six digits are:
    • A,B,C,D,E,F
  2. Create four three-digit numbers from this sum:
    • ACE = w
    • BDF = x
    • FAC = y
    • EBD = z
  3. Calculate the sum of squares:
    • P = (w * w) + (x * x) + (y * y) + (z * z)

    The low-order six digits of P form the Master Password.

For example, if the IPL date is Aug 22, 2009, i.e. 090822, then the calculation goes like this:

  1. ABCDEF  = (090822 + 246135) = 336957
  2. w = 365; x = 397; y = 736; z = 539
  3. P = (365 x 365) + (397 x 397) + (736 x 736) + (539 x 539) = 1123051

Master password is 123051.