padding

täyte, pehmike (present participle of)
Soft filling material used in cushions etc.
puhekieltä Extra characters such as spaces added to the end of a record to fill it out to a fixed length.
puhekieltä Extraneous text added to a message for the purpose of concealing its beginning, ending, or lengthJoint Publication 1-02 U.S. Department of Defense Dictionary of Military and Associated Terms; 12 April 2001 (As Amended Through 14 April 2006)..
wall