Pahūtanga ZigBee, 'He Morearea Haumarutanga' Maama Ataata ki te 'Whakamutua mate'?

[kuputuhi / Engineering LED Xuchao Peng] 2015 i whakahaerehia i Las Vegas \u0026 middot; Potae Pango (BlackHat), i tukuna e nga kairangahau he pepa. I tohuhia e te pepa he koha i roto i te kawa ZigBee, te rama rama a te kaitarai LED he kino tenei ki te whatunga ZigBee, kia taea ai te whakahaere i nga taputapu hono katoa i roto i te whatunga. He tino kino tenei whakaraeraetanga, no te mea ko te haumarutanga o te otinga ka whakawhirinaki katoa. i runga i nga taviri whatunga te muna. Na, ko nga rama o te whare tapere mai i te pukoro rama atamai me te raka tatau i whakamatau i ta maatau whakaaturanga, ko nga kaihoko o enei taputapu ki te tuku he iti noa nga whakaritenga mo te whakamotuhēhēnga, karekau he whiringa hei whakapai ake i te taumata haumarutanga, na reira ka hoatu Ka whakaratohia e te hacker he tino pai. Ko nga kairangahau i tapiri ki te tuhi.Ko te mana nui e arahina ana te rama waipuke i kii ko te koha ka uru ki nga momo momo taputapu, ka taea e te kaiwhaiwhai te whakamahi i nga taputapu kawa ZigBee, ka uru mai te mohio ki to kaainga, te kore utu ki te whakahaere i o raka whatunga, nga punaha whakaoho, tae atu ki te kaha. ki te huri i o rama rama. Mo tetahi wa i puta te awangawanga nui i roto i te umanga. backpfrontp hakari, ZigBee (Kawa Zigbee) i runga i te IEEE802.15.4 paerewa, 1000W rama waipuke arahina rite te iti-utu, iti-mana, poto-whānui hangarau whatunga ahokore kōrero, kua whānui i roto i te rama, pērā i te atamai, raka tatau atamai, pūoko nekehanga, pūoko pāmahana me ētahi atu taputapu whatunga puta nui, a he mana nui. Na, i kii nga kairangahau i te meka mehemea, ko te huihuinga Black Hat, ka arahi ki te raruraru haumarutanga hua mohio, i whakahaere ano hoki a Engineering LED i tana ake tirotiro.Ko tenei huihuinga kua kitea e matou ko te potae pango i runga i te Runanga Nui i whakatakotoria mo nga whakaraeraetanga hangarau a ZigBee. i roto i te taumata kawa, karekau te rama rama a te keehi i te papamuri hangarau me nga taviri whakamanatanga whatunga o roto he uaua ki te whakaeke. Shun Zhou hua hangarau kaiwhakahaere Jiang Hongfei kanohi. backpfrontp E ai ki a Jiang whakataki, Zigbee kawa ahokore ko tetahi o nga hangarau tino haumaru mo te kawa ZigBee, kaore ano kia puta tahi te waahi pakaru o te ao.Engineering LED kokoru marama whakamarama, Zigbee haumarutanga e tika ana mo tana hoahoa raupapa, e whakamahi ana i te whakamunatanga AES (Arā Atu Ake. Pūnaha Whakamuna), kaha 12x hangarau whakamunatanga kāri pēke, engari, Z-tāpae ki te whakarato i te tautoko Zigbee matawhānui, CC2530 tautoko pūmārō 128bit AES whakamunatanga hātepe i roto i te tāpae kawa i roto i te tikanga ki te karo pokanoa o te taua taputapu, me ētahi atu whakaaro ki te aukati i te whakarongo. . Maamaa te kii, ko te AES he algorithm whakamunatanga hou ka taea te whakamahi ki te tiaki i nga raraunga hiko, e whakamahi ana i nga paanui, te paatete kirikiri matua hangarite, me nga paatete (16 paita) hei whakamuna me te wetewete i nga raraunga 128. Ka whakamahia e ia he hanganga porowhita i roto i tenei huringa ko te displacement tukurua. (whakawhitinga) me te whakakapi (whakakapi) nga raraunga whakauru, kia pai ai te haumaru o te punaha. He kanohi mo Jiang Hongfei. backpfrontp raro Engineering LED arena marama hoki whakarāpopoto Zigbee toru tikanga haumarutanga, i roto i te tikanga ki te whakapai ake i te haumarutanga raraunga: backpfrontp 1), te hanganga o roto o te haumarutanga; backpfrontp ZigBee kawa kia whai whatunga haumaru, me hanga nga taputapu katoa nga whakaata Kua whakahohehia te haki o mua-haumarutanga, tautuhia he kupuhipa taunoa, ka taea te whirihora i te kupuhipa taunoa ki ia taputapu i runga i te whatunga ka whirihorahia ki te kairuruku anake, a ka tohatohahia ki nga taputapu katoa mena ko te whatunga. Kia mahara, i nga wa kei te heke mai, ka tohatohahia te kupuhipa ki ia tangata kia uru atu ki nga taputapu whatunga. Na, uru ki te whatunga i roto i te wa o te ngoikoretanga riro, engari ahu te reira ki te whakaoti i roto i te tekau milliseconds. backpfrontp 2), tino mana uru ki te whatunga;I roto i te whatunga haumaru, ka uru mai tetahi taputapu ki te whatunga ka kiia he pokapū whakawhirinaki. Kua whakaaetia e te Pokapū Nama kia noho tonu ki roto i te taputapu whatunga, kua whakakorehia ranei te uru ki te whatunga tenei mana ki te kowhiri i te taputapu, ko nga rama o te whare tapere ka taea e te pokapu whakawhirinaki te whakatau mena ka whakaaehia he taputapu ki roto i te whatunga ma tetahi huarahi arorau, ko tetahi o te Pokapū Kaitiaki anake. kotahi te taputapu i roto i te wa poto poto ki te uru atu ki te whatunga, e kore e taea e te kaiwhakamahi te karo i te tukanga raihana; backpfrontp 3), haumarutanga raraunga tono; Ka taea e te pokapū whakawhirinaki te whakahou i te kupuhipa whatunga kia rite ki ta raatau ake whakatau. Ko nga kaiwhakawhanake tono ki te whakarereke i te whakahou i te kupuhipa whatunga kaupapa here, ka taea te whakamahi i te Pokapū Kaitiaki taunoa ki te tautuhi i te kaupapa here kia rite ki te whakatinanatanga o nga kaimahi whanaketanga, ka whakahouhia he rautaki i ia wa i runga i to huringa kupuhipa whatunga. backpbackpfrontp I tua atu, ko te nuinga o nga kaihanga o te whare o te whakaaetanga hangarau Zigbee, penei i te rai, rama korikori Lenovo, OU me etahi atu, e ahu mai ana i runga i te whakaaetanga whakarereke i runga i te whakaaetanga whakakotahitanga, kia riro ma ratou ake kawa rangatira, pera me Ko etahi atu punaha Zigbee kaore e taea te mahi tahi. I whakahuahia e Jiang Hongfei, i runga i nga whakaaro o runga ake nei, e whakapono ana ia e hiahia ana nga kaiwhaiwhai ki te whakauru ki te punaha uaua he tino nui. backpfrontp meka, mo nga kaiwhakangungu ngaio tino matatau, me te whakaekenga pea o nga taputapu kaainga atamai ka taea, engari mo te kaiwhakamahi toharite, kaore e taea te whakatutuki i tenei mea. Ano, ki te whakapau kaha nui, te tikanga teka? Na mo te pakarutanga o te Potae Pango a Zigbee morearea mo te haumarutanga, ka whakangawari matou, ka pai ake nga hua rama mohio! Backp