This book provides essential information about modems, multiplexers, concentrators, fiber optics, and cables. Plus, the latest developments in legalities and communications law are discussed.The alternative strategy of permitting a user to operate at some classified level and pass plaintext address and control information to the network ... A Trusted Mail (TMail) process controls security services through a local key manager (LKM ).
|Title||:||Data communications, networks, and systems|
|Author||:||Thomas C. Bartee|
|Publisher||:||Sams - 1992|