How se­cure are in-flight In­ter­net con­nec­tions?

Electronics For You - - INTERNET -

The se­cu­rity prob­lems faced by air­lines are no dif­fer­ent from those in to­day’s hy­brid in­fra­struc­ture net­works in­volv­ing wire­line and wire­less, fixed and mo­bile com­mu­ni­ca­tion net­works car­ry­ing voice, video and data traf­fic. So­lu­tions rec­om­mended for such con­ven­tional hy­brid set­ups ap­ply to these air-to-ground and in­tra-air­liner set­ups as well.

Usu­ally, a multi-layer se­cu­rity ap­proach with in­dus­trial-grade se­cu­rity is cho­sen. In this ap­proach, mul­ti­ple lev­els of ac­cess con­trol in­clud­ing authentication (net­work-based, de­vice-based and host-based) and au­tho­ri­sa­tion check­points are set up with due sup­port for in­tegrity check as well as rel­e­vant mon­i­tor­ing and traf­fic man­age­ment.

Se­cu­rity within the air­craft it­self may be fur­ther strength­ened by zone-based par­ti­tion­ing and pro­vi­sion­ing of non-in­ter­fer­ing fre­quency us­age for in­tra-air­liner con­nec­tiv­ity over Wi-Fi (us­ing IEEE 802.11 vari­ants like ‘g’ or ‘n’ un­der­neath with WPA-PSK or al­ter­na­tive se­cu­rity con­fig­u­ra­tion) in ad­di­tion to the op­tional pro­vi­sion for switched Eth­er­net-based wire­line con­nec­tiv­ity (by us­ing IEEE 802.3 vari­ants, usu­ally ‘u’ or ‘z’). IEEE 802.1x or other com­pet­ing se­cu­rity op­tions are also em­ployed.

A good part of such pro­vi­sions ben­e­fits from cryp­to­graphic so­lu­tions for authentication, in­tegrity check, sup­port for non-re­pu­di­a­tion and more.

Seg­ments of ground-to-satel­lite, satel­lite-to-satel­lite, satel­lite-to-air­craft and groundto-ground com­mu­ni­ca­tion net­works are han­dled dif­fer­ently, both in terms of un­der­ly­ing pro­to­cols and se­cu­rity.

Newspapers in English

Newspapers from India

© PressReader. All rights reserved.