000			00712nam a2200253Ia 4500
001			54128
005			20250221155908.0
008			250214s9999||||xx |||||||||||||| ||und||
020			_a1584884703
100			_aMollin, Richard A
245		0	_aCodes : the guide to secrecy from ancient to modern times
260			_aBoca Raton
260			_bChapman & Hall/ CRC
260			_c2005
300			_axx, 679p.
500			_aIncludes bibliographical references and index
650			_aComputer security
650			_aCryptography
650			_aData encryption(Computer science)
650			_aE-mail and internet security
650			_aKey management
650			_aPublic-key cryptography
942			_cBK
999			_c69900 _d69900