\input zb-basic
\input zb-ioport
\iteman{io-port 60000502}
\itemau{Kaliski, Burt}
\itemti{Ring}
\itemso{Encyclopedia of Cryptography and Security (2nd Ed.), 1049-1050 (2011).}
\itemcc{}
\itemut{}
\itemli{doi:10.1007/978-1-4419-5906-5\_431}
\end