Samfurin TickTock mai cikakken aiki, wanda ya ƙunshi sassa daban-daban da aka tara
Ofungiyar masu bincike daga Jami'ar Kasa ta Singapore da Jami'ar Yonsei (Korea) kwanan nan sun fito, waɗanda suka ƙirƙira hanyar gano kunnawar makirufo boye a cikin kwamfutar tafi-da-gidanka.
Don nuna aiki na Hanyar da ta danganci allon Rasberi Pi 4, amplifier da transceiver (SDR), samfurin da ake kira TickTock an haɗa shi, wanda ke ba da damar gano kunna makirufo ta malware ko kayan leken asiri don sauraron mai amfani.
Dabarar gano m hada da makirufo ya dace, tunda, a yanayin kyamarar gidan yanar gizo, mai amfani zai iya toshe rikodin kawai ta hanyar manne kamara, sannan kashe makarufin da aka gina yana da matsala kuma ba a bayyana lokacin da yake aiki da lokacin da ba ya aiki.
Hanyar ta dogara ne akan gaskiyar cewa lokacin da makirufo ke aiki, da'irori masu aikawa da siginar agogo zuwa analog zuwa na'ura na dijital suna fara fitar da wata takamaiman siginar bango wanda za'a iya kamawa da kuma raba su da hayaniyar da aikin wasu na'urori ke haifar da su. kasancewar takamaiman hasken lantarki daga makirufo, ana iya ƙarasa da cewa ana yin rikodi.
Na'urar tana buƙatar daidaitawa don nau'ikan kwamfutar tafi-da-gidanka daban-daban, saboda yanayin siginar da aka fitar ya dogara da guntu sautin da aka yi amfani da shi. Don ƙayyade aikin makirufo daidai, ya zama dole don magance matsalar tace amo daga sauran hanyoyin lantarki da la'akari da canjin siginar dangane da haɗin.
"Na farko, waɗannan mafita suna buƙatar masu amfani da su amince da aiwatar da masana'antun kwamfutar tafi-da-gidanka ko tsarin aiki, wanda maharan suka lalata sau da yawa a baya ko kuma wanda masana'antun da kansu za su iya yin mugunta," sun bayyana a cikin takardun su. "Na biyu, waɗannan mafita an gina su a cikin ƙananan ƙananan na'urori kawai, don haka yawancin kwamfyutocin yau ba su da hanyar ganowa / hana saurara."
A karshen, masu binciken sun sami damar daidaita na'urar su don gano kunnawa da dogaro daga makirufo a cikin 27 daga cikin 30 model na kwamfyutocin da aka gwada da Lenovo, Fujitsu, Toshiba, Samsung, HP, Asus da Dell suka yi.
Na'urori guda uku da hanyar ba ta yi aiki da su ba sune samfuran 2014, 2017 da 2019 Apple MacBook (an ba da shawarar cewa ba za a iya gano siginar siginar ba saboda garkuwar aluminum da kuma amfani da gajerun igiyoyi masu sassauci).
"Emanation ɗin ya fito ne daga igiyoyi da masu haɗawa waɗanda ke ɗauke da siginar agogo zuwa na'urar microphone, a ƙarshe don yin aiki da mai sauya analog-to-dijital (ADC)," in ji su. "TickTock yana ɗaukar wannan ɗigo don gano matsayin kunnawa/kashe makirufo na kwamfutar tafi-da-gidanka."
Masu binciken kuma yayi ƙoƙarin daidaita hanyar don sauran nau'ikan na'urori, kamar wayoyin hannu, Allunan, smart speakers da kyamarori na USB, amma ingancin ya zama ƙasa kaɗan: daga cikin na'urori 40 da aka gwada, 21 ne kawai aka gano, wanda aka bayyana ta hanyar amfani da microphones na analog maimakon na dijital, sauran hanyoyin haɗin gwiwa. da gajerun madugu waɗanda ke fitar da siginar lantarki.
Sakamakon ƙarshe ya yi nasara sosai. wanin Apple hardware.
"Ko da yake tsarinmu yana aiki da kyau akan kashi 90 na kwamfyutocin da aka gwada, gami da duk samfuran da aka gwada daga shahararrun dillalai kamar Lenovo, Dell, HP, da Asus, TickTock ya kasa gano siginar agogon makirufo akan kwamfyutocin guda uku, duka Apple MacBooks ne. brainiacs da'awar a cikin labarin.
Suna hasashen cewa daga cikin na'urorin da ba za a iya gano su ba, yana iya zama saboda lamurra na aluminium na MacBook da gajerun igiyoyi masu sassauƙa da ke rage zubar EM har ta kai ga ba za a iya gano sigina ba.
Dangane da wayowin komai da ruwan, yana iya zama saboda analog maimakon makirufo na dijital akan wasu nau'ikan wayar, rashin ƙarancin wutar lantarki akan na'urorin da ke haɗa makirufo, kamar lasifikan wayo.
Finalmente idan kuna sha'awar ƙarin sani game da shi, zaka iya duba bayanan A cikin mahaɗin mai zuwa.