LTE yana sniffer kayan aiki wanda zai iya kama zirga-zirgar LTE a hankali
'Yan kwanaki kadan da suka gabata, masu bincike daga Cibiyar Harkokin Fasaha ta Koriya ya sanar da sakin kayan aiki mai suna "LTESniffer" wanda shine tushen budewa kuma yana bawa masu amfani damar saka idanu akan cibiyoyin sadarwar LTE da kuma nazarin zirga-zirga. LTESniffer shine tsara don aiki tare da nau'ikan na'urorin LTE, ciki har da wayoyi, Allunan, da modem, kuma ana iya amfani da su don ɗauka da tantance bayanan da aka watsa ta hanyar sadarwar LTE.
LTE (Long-Term Juyin Halitta) mizani ne na sadarwa mara igiyar waya wacce ake amfani da ita sosai a cikin hanyoyin sadarwar wayar hannu a duk duniya. An tsara hanyoyin sadarwar LTE don samar da saurin canja wurin bayanai, amma ba su da kariya daga barazanar tsaro.
Ɗaya daga cikin manyan haɗarin tsaro masu alaƙa da cibiyoyin sadarwar LTE shine saurara. Sauraron sauraren LTE yana nufin katsewa da nazarin bayanan da ake watsawa ta hanyar hanyoyin sadarwa na LTE ba tare da sani ko amincewar bangarorin da abin ya shafa ba.
Game da LTESniffer
LTESniffer, ba ka damar shirya m (ba tare da aika sakonni akan iska ba) sauraren saurare da kuma katse zirga-zirga tsakanin tashar tushe da wayar salula a cikin cibiyoyin sadarwar 4G LTE, da kuma samar da kayan aiki don ƙaddamar da zirga-zirgar zirga-zirga da kuma aiwatar da API don amfani da aikin LTESniffer a cikin aikace-aikacen ɓangare na uku.
Daya daga cikin siffofin maɓallin ltesniffer shine ikonsa na kamawa da warware saƙonnin jirgin sama na LTE. Na'urorin LTE suna amfani da waɗannan saƙonnin don kafawa da kula da haɗin kai zuwa cibiyar sadarwar kuma sun ƙunshi mahimman bayanai game da na'urar da hanyar sadarwa. Ta hanyar ɗauka da nazarin waɗannan saƙonni, LTESniffer na iya ba da bayanai masu mahimmanci game da ayyukan cibiyoyin sadarwar LTE da halayen na'urorin LTE.
Farashin LTESniffer yana ba da ƙaddamar da tashar PDCCH ta zahiri (Tashar Kula da Jiki na Downlink) don samun bayanai game da zirga-zirgar tashar tushe (DCI, Bayanin Kulawa na Downlink) da masu gano hanyar sadarwa na wucin gadi (RNTI, Mai Gano Wuta na Gidan Rediyo).
Ma'anar DCI da RNTI kuma suna ba da damar yanke bayanai daga tashoshin PDSCH (Tashar Shared Channel na Jiki) da PUSCH (Tashar Shared Shared na Jiki) don samun dama ga zirga-zirga masu shigowa da fita. A lokaci guda, LTESniffer ba ya yanke rufaffiyar saƙon da ake watsawa tsakanin wayar hannu da tashar tushe, amma yana ba da dama ga bayanan da ake watsawa cikin bayyanannen rubutu. Misali, saƙonnin da tashar tashar ta aika a yanayin watsa shirye-shirye da kuma saƙonnin haɗin farko ana watsa su ba tare da ɓoyewa ba, yana ba ku damar tattara bayanai game da wace lamba.
Na Abubuwan da suka bambanta daga LTESniffer, an ambaci wadannan:
- Ƙididdigar ainihin-lokaci na tashoshin sarrafa LTE masu fita da masu shigowa
- Taimako don ƙayyadaddun bayanai na LTE Advanced (4G) da LTE Advanced Pro (5G, 256-QAM).
- Daidaita tsarin DCI
- Taimako don yanayin canja wurin bayanai: 1, 2, 3, 4.
- Taimako don tashoshin rarraba mitar duplex (FDD).
- Taimako ga tashoshin tushe ta amfani da mitoci har zuwa 20 MHz.
- Gano atomatik na tsare-tsaren daidaitawa da aka yi amfani da su don bayanai masu shigowa da masu fita (16QAM, 64QAM, 256QAM).
- Gano kai tsaye na saitin Layer na zahiri don kowace waya.
- LTE Tsaro API goyon bayan: RNTI-TMSI taswirar, tarin IMSI, bayanin martaba.
Tsangwama yana buƙatar ƙarin kayan aiki. Don katse zirga-zirga daga tashar tushe kadai, USRP B210 mai ɗaukar shirye-shiryen transceiver (SDR) tare da eriya biyu ya isa, farashin kusan $2000.
Ana buƙatar katin USRP X310 SDR mafi tsada don tsallaka zirga-zirga daga wayar hannu zuwa tashar tushe tare da ƙarin transceivers guda biyu (kit ɗin yana kashe kusan $ 11,000), tunda gano fakitin da wayoyi suka aika yana buƙatar daidaitaccen aiki tare tsakanin firam ɗin da aka aiko da karɓa liyafar sigina a lokaci ɗaya a cikin maƙallan mitar mitoci daban-daban guda biyu.
Ana kuma buƙatar kwamfutar da ke da ƙarfi don ƙaddamar da ƙa'idar, misali, don nazarin zirga-zirga daga tashar tushe tare da masu amfani 150, ana ba da shawarar tsarin Intel i7 CPU da 16 GB na RAM.
LTESniffer shima ana iya daidaita shi sosai. kuma ana iya daidaita su don kama takamaiman nau'ikan zirga-zirga ko tace zirga-zirga maras so. Wannan ya sa ya zama kayan aiki mai ƙarfi ga masu gudanar da hanyar sadarwa, masu binciken tsaro, da duk wani wanda ke buƙatar sa ido kan hanyoyin sadarwar LTE da nazarin zirga-zirga. A cikin sashe na gaba, za mu tattauna yadda ake amfani da LTESniffer don saka idanu kan cibiyoyin sadarwar LTE da nazarin zirga-zirga.
Idan kuna sha'awar ƙarin koyo game da shi, zaku iya tuntuɓar da/ko samun lambar kayan aiki a mahada mai zuwa.
A ƙarshe amma ba kalla ba, ya kamata a ambaci hakan Ana iya amfani da sauraren LTE don dalilai daban-daban, duka na halal da na halal, don haka amfani da kayan aiki yana bisa ga ra'ayin masu amfani da kuma dokokin ƙasarsu.