Alexander, Joseph <br/><br/>
Cryptography and network security 
Joseph Alexander 
 - London :  ED-Tech Press,  2022. 
 - xiii, 351 pages :  illustrations ; includes bibliographical references and index;  26cm. 
<br/><br/><label>ISBN: </label>9781788826341 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Computer networks -- Security measures.<br/>Computer security.<br/>Data encryption (Computer science)