000			00391nam a2200133Ia 4500
008			211224s9999 xx 000 0 und d
020			_a9780521555593
082			_a005.82 LUB
100			_aLubbe, J. C. A. van der
245		0	_aBasic methods of cryptography
260			_aCambridge: _bCambridge University Press, _c1998
300			_axiv, 229 p. : ill. ; 24 cm.
650			_aComputer security
999			_c26711 _d26711