Ƙungiyar masu bincike daga Jami'ar California a San Diego ya samar da hanyar gano na'urorin hannu ta hanyar alamomi daAn aika ta iska ta Bluetooth Low Energy (SAKU) da kuma amfani da masu karɓa na Bluetooth don gano lokacin da sabbin na'urori ke cikin kewayo.
Dangane da aiwatarwa, ana aika siginonin fitila a kusan sau 500 a cikin minti ɗaya kuma, kamar yadda waɗanda suka ƙirƙira ma'aunin suka nufa, ba a ɓoye su gaba ɗaya kuma ba za a iya amfani da su don haɗa mai amfani ba.
Nishant Bhaskar, Ph.D, ya ce "Wannan yana da mahimmanci saboda a duniyar yau Bluetooth yana haifar da babbar barazana saboda sigina ne akai-akai kuma akai-akai da ke fitowa daga dukkan na'urorin mu ta hannu," in ji Nishant Bhaskar, Ph.D. dalibi a Sashen Kimiyyar Kwamfuta da Injiniya na UC San Diego kuma ɗaya daga cikin manyan marubutan takardar.
A hakikanin gaskiya, lamarin ya zama daban, kuma lokacin da aka aika shi, siginar yana karkatar da shi a ƙarƙashin rinjayar abubuwan da ke tasowa yayin samar da kowane guntu guda ɗaya. Ana iya gano waɗannan ɓarna, waɗanda ke na musamman da na kowane na'ura, ta amfani da na'urar sarrafa shirye-shirye na yau da kullun (SDR, Software Defined Radio).
Matsalar tana bayyana kanta a cikin kwakwalwan kwamfuta masu haɗa Wi-Fi da ayyukan Bluetooth, suna amfani da na'ura mai sarrafa oscillator na gama gari da abubuwan analog da yawa waɗanda ke aiki a layi daya, wanda canjin fitarwa ya haifar da asymmetry a cikin lokaci da girma. An kiyasta jimillar kuɗin ƙungiyar yajin aikin a kusan dala 200. Ana buga samfuran lambobi don fitar da alamun musamman daga siginar da aka katse akan GitHub.
"Tsarin ɗan gajeren lokaci yana ba da hoton yatsa mara kyau, yana mai da dabarun da suka gabata ba su da amfani don bin diddigin Bluetooth," in ji Hadi Givehchian, kuma wani Ph.D. a Kimiyyar Computer daga UC San Diego. dalibi kuma babban marubucin labarin.
A aikace, an gano halayen yana ba da damar gano na'urar, ba tare da la'akari da amfani da irin waɗannan hanyoyin kariya ba a kan ganewa, kamar bazuwar adireshin MAC. Don iPhone, kewayon liyafar alamar, ya isa ganewa, ya kasance mita 7, tare da aikace-aikacen gano lamba na COVID-19 yana aiki. Don na'urorin Android, ana buƙatar kusanci mafi girma don ganewa.
An gudanar da gwaje-gwaje da yawa don tabbatar da aikin hanyar a aikace a wuraren jama'a kamar shagunan kofi.
A lokacin gwaji na farko, An yi nazarin na'urori 162, wanda 40% daga cikinsu sun sami damar samar da abubuwan ganowa na musamman. A gwaji na biyu, an yi nazarin na'urorin hannu guda 647 kuma an samar da abubuwan ganowa na musamman ga kashi 47% daga cikinsu. A ƙarshe, an nuna yiwuwar yin amfani da abubuwan ganowa da aka samar don bin diddigin motsi na na'urorin masu aikin sa kai waɗanda suka yarda su shiga cikin gwajin.
Masu binciken suna kuma binciken ko hanyar da suka kirkiro za a iya amfani da su ga wasu nau'ikan na'urori.
Duk hanyoyin sadarwa a yau ba su da waya kuma suna cikin haɗari,” in ji Dinesh Bharadia, farfesa a Sashen Lantarki da Injiniyan Kwamfuta na UC San Diego kuma ɗaya daga cikin manyan marubutan jaridar. "Muna aiki don gina matakan kariya na kayan aiki daga yuwuwar hare-hare."
Masu binciken sun lura cewa kawai kashe Bluetooth ba lallai ne ya hana duk wayoyi daga fidda fitilun Bluetooth ba.
Misali, har yanzu ana fitar da tashoshi yayin kashe Bluetooth daga Cibiyar Kulawa akan Fuskar wasu na'urorin Apple. "Kamar yadda muka sani, kawai abin da ke dakatar da tashoshi na Bluetooth shine kashe wayarka"
Masu binciken sun kuma lura da matsaloli da yawa waɗanda ke sa ganewa da wahala. Misali, canje-canjen yanayin zafi yana shafar ma'aunin siginar fitila, kuma tazarar karɓar ta yana tasiri ta hanyar canje-canjen ƙarfin siginar Bluetooth da ake amfani da shi akan wasu na'urori.
Don toshe hanyar na ganewa a tambaya, an ba da shawarar tace siginar a matakin firmware zuwa guntuwar Bluetooth ko amfani da hanyoyin kariya na kayan masarufi na musamman. Kashe Bluetooth ba koyaushe yake isa ba, yayin da wasu na'urori (irin su wayoyin hannu na Apple) ke ci gaba da aika sakonni ko da a kashe Bluetooth, suna buƙatar a kashe na'urar gaba ɗaya don toshe aikawa.
Finalmente Idan kuna da sha'awar sanin game da shi, zaka iya bincika bayanan a cikin bin hanyar haɗi.