00802nam a22002291 4500 1/18343 011207s1990 enk 1 eng d 3540528318 18883 DLC GR-PeUP 005.8'2 SA Salomaa, Arto. Public-key cryptography / Arto Salomaa Berlin : Springer-Verlag, 1990 x, 245 p. : ill. ; 25 cm. EATCS Monographs on Theoretical Computer Science ; Includes bibliographical references and index Computer Access control. Cryptography. EATCS Monographs on Theoretical Computer Science ; 23 INST UNIPILB MAIN 20040709 005.8'2 SA 00137806 00137806 LOAN 0 1 /webopac/covers/01/18883_3540528318.jpg