00818nam    00253   45  001002800000003005200028010002200080021001800102100004100120101000800161102000700169105001800176106000600194200006500200205001000265210004700275215002300322675002400345675002700369700002200396701003300418801001600451856009700467PT.BNPORTUGAL.BNP-L.2047071http://id.bnportugal.gov.pt/bib/bibnacional/2047071  a978-972-722-902-4  aPTb456229/19  a20200605d2019    m  y0pory01030103ba0 apor  aPT  aa   z   000yy  ar1 aIntrodução à criptografiafFernando Boavida, Mário Bernardes  a1ª ed 9aLisboacFCA - Editora de Informáticad2019  a308 p.cil.d24 cm  a004(075.8)vBNzpor  a003.26(075.8)vBNzpor 1aBoavidabFernando 1aBernardesbMáriof1953-4070 0aPTbBNgRPC41uhttp://rnod.bnportugal.gov.pt/ImagesBN/winlibimg.aspx?skey=&doc=2047071&img=139150&save=true