00569nam a2200169 a 4500008004100000010001400041020001600055040002800071082001400099100002400113245005800137260003900195300003600234504006500270650004400335700002000379111025s1994    maua     b    001 0 eng d  a 93077966  a 0126380104  aDLCcDLCdDLCdBD-KhUET00a005.82201 a Shaffer, Steven L.10aNetwork security /cSteven L. Shaffer, Alan R. Simon.  aBoston :bAP Professional,cc1994.  axviii, 318 p. :bill. ;c24 cm.  a Includes bibliographical references (p. 303-307) and index. 0aComputer networks |x Security measures.1 a Simon, Alan R.