Abaphandi abavela kwiYunivesithi yaseBen-Gurion, ukufunda iindlela ezifihliweyo zokudlulisa idatha kwiikhompyuter ezizimeleyo, benze indlela entsha umbutho wejelo lonxibelelwano ebizwa ngokuba yi- «AIR-FI», evumela, mediante ukuxhaphaza iitshipsi zememori ze-DDR, ukuvelisa isignali kanomathotholo kwisantya esivela kwi-2.4 GHz, enokubanjwa yi isixhobo senzelwe i I-Wi-Fi iimitha ezininzi kude.
Ukusuka kwimbono ebonakalayo, indlela ingasetyenziselwa ukuhambisa izitshixo zokubethela, amagama agqithisiweyo, kunye nedatha eyimfihlo esuka kwikhompyuter engenanxibelelwano lwenethiwekhi kwaye inesifo se-spyware okanye i-malware.
Malunga neAIR-FI
Abaphandi ikwazile ukufezekisa inqanaba lotshintshiso lwe-100 ngeesekondi ukubeka abafumanayo Wi-Fi, njenge-smartphone okanye ilaptop, kumgama oyi-180 cm. Ireyithi yempazamo yokuhambisa ibiyi-8,75%, kodwa iimpazamo zokulungisa iikhowudi zisetyenziselwe ukuchonga nokulungisa iimpazamo zothumelo.
Ukucwangcisa ijelo lokudlulisa idatha, qala nje inkqubo eqhelekileyo yomsebenzisi, que ingaqhutywa kumatshini obonakalayo. Ukwamkela, isixhobo esine-chip engenazingcingo ekwaziyo ukujonga umoya kwinqanaba eliphantsi (kulingo, iiadaptha ezingenazingcingo ezisekwe kwiAtheros AR92xx kunye neechips zeAR93xx zisetyenzisiwe kunye ne-firmware eguqulweyo ehambisa ulwazi malunga neeparameter zesiginali ezifanelekileyo kuhlalutyo lwembonakalo).
Xa uvelisa umqondiso, DDR4-2400 amandla ememori asetyenzisiwe Ukusebenza kumaza angama-2400 MHz ukuvelisa ukuphazamiseka kombane xa umlawuli efikelela kwimodyuli yememori kwiibhasi zedatha ezahlukeneyo.
Uluhlu lweWi-Fi luwela kumaza ombane i-2.400-2.490 GHzOko kukuthi, inqumla ubungakanani apho inkumbulo isebenza khona.
Abaphandi ndiyifumene kunye noxinano olukhulu lwezithuthi ngaxeshanye kwiibhasi zedatha ezahlukeneyo, Amaza ombane akhutshwa ngesiqhelo nge-2,44 Ghz, ezibanjwa yistaki engenazingcingo engama-802.11.
Ngeemodyuli zememori ngaphandle kwe-DDR4-2400, indlela iyasebenza xa imemori yexesha iguqulwa ngokwenkqubo, evunyelweyo kwi-XMP (iProfayili yokuGcina iMemori).
Ukwenza umqondiso, Ukufikelela ngaxeshanye ebhasini kwakusetyenziswa kwimisonto efanayo yokwenza ziboshwe kwiimpawu ezahlukeneyo zeCPU. Ulwazi lweekhowudi iluncedo kumqondiso yenziwa kusetyenziswa ukumodareyitha kwe-OOK Ilula (kwi-off-encoding) ene-amplitude shift keying (ASK), apho u "0" kunye no "1" zifakwe ikhowudi ngokuseta izandi ezahlukeneyo zamaza, kwaye ulwazi ludluliselwa kwisantya esimiselweyo. - isuntswana elinye nge-millisecond.
Ukugqithisela "1" yenza uthotho lweememori ezibhaliweyo ezibangelwa kukukhuphela ngokulandelelana kwe-1 MB yedatha phakathi kokudweliswa kabini. Xa kudluliswa "0", ialgorithm ayithathi manyathelo ngexesha elabelwe ukuhambisa kancinci. Ke ngoko, ukuhanjiswa kuka "1" kuvelisa ukuphuma komqondiso, kwaye ukuhanjiswa kuka "0" kuyanyamalala.
Phakathi kwamanyathelo okuthintela ukusetyenziswa kwendlela ye-AIR-FI, Umda wommandla ukhankanyiwe kunye nokudalwa komjikelezo kumbuthon, ekungavumelekanga ngaphakathi kwayo ukuphatha izixhobo ngeetshipsi ezingenazingcingo, kunye nokubeka imeko yekhompyuter kwikheji yeFaraday, ukuvelisa ingxolo kwii-Wi-Fi frequency, ukuqala iinkqubo zangasemva ezenziwa ngokungakhethiyo kwimemori kunye nokubeka iliso kwinkangeleko kwinkqubo yeenkqubo ezikrokrelayo ezenza imisebenzi yememori engaqhelekanga.
Kwakhona, kwiphepha labaphandi, ukhetho lweendlela zothumelo luyenziwa yedatha efihliweyo abayichongeyo besebenzisa i-electromagnetic, acoustic, thermal kunye nefom yokuvuza ukukhanya
- I-PowerHammer: Lungiselela ukuthunyelwa kwedatha ngaphezulu kwelayini yamandla, sebenzisa umthwalo kwi-CPU ukutshintsha ukusetyenziswa kwamandla ODINI: Imiboniso yokutsala idatha kwisixhobo esikwigumbi elikhuselweyo (ikhareji laseFaraday) ngohlalutyo lokuhamba rhoqo kwamagnetic oscillation okwenzekayo Ngexesha lokusebenza kweCPU.
- I-MAGNETO: ukukhutshwa kwedatha ngokusekwe kumlinganiso wokutshintsha kwemagnethi okwenzeka ngexesha lokusebenza kwe-CPU.
- I-AirHopper: ukuhanjiswa kwedatha kwinqanaba lokufikelela kwii-byte ezingama-60 ngomzuzwana ukusuka kwi-PC ukuya kwi-smartphone ngokuhlalutya kwi-smartphone nge-FM tuner yokuphazamiseka kwirediyo eyenzeka xa ulwazi luboniswa kwiscreen.
- I-BitWhisper: ukuhanjiswa kwedatha kumgama ukuya kuthi ga kwi-40 cm kwinqanaba le-1-8 bits ngeyure nganye ngokulinganisa ukuhla kweqondo lobushushu kwityala lePC.
- I-GSMem: ukukhutshwa kwedatha kumgama ukuya kuthi ga kwiimitha ezingama-30 ngokwenza ukuphazamiseka kombane kumaza amanethiwekhi e-GSM athathwe yi-smartphone.
Umthombo: https://cyber.bgu.ac.il