Bafuputsi ba Korea Advanced Institute of Technology ba phatlalalitse LTESniffer toolkit, e leng se u lumellang hore u se ke ua etsa letho (ntle le ho romela lipontšo moeeng) ho hlophisa sephethephethe sa ho mamela le ho thibela sephethephethe pakeng tsa seteishene sa motheo le selefouno ho marang-rang a 4G LTE. Setsi sa lisebelisoa se fana ka lisebelisoa bakeng sa ho hlophisa thibelo ea sephethephethe le ts'ebetsong ea API bakeng sa ho sebelisa ts'ebetso ea LTESniffer lits'ebetsong tsa mokha oa boraro.
LTESniffer e fana ka mokhoa oa ho khetholla mocha oa 'mele oa PDCCH (Physical Downlink Control Channel) ho fumana tlhahisoleseding mabapi le sephethephethe ho tloha setsing sa motheo (DCI, Downlink Control Information) le li-identifiers tsa nakoana tsa marang-rang (RNTI, Radio Network Temporary Identifier). Tlhaloso ea DCI le RNTI e boetse e lumella ho khetholla lintlha ho tsoa ho liteishene tsa PDSCH (Physical Downlink Shared Channel) le PUSCH (Physical Uplink Shared Channel) ho fumana mokhoa oa ho fumana sephethephethe se kenang le se tsoang. Ka nako e ts'oanang, LTESniffer ha e hlakole melaetsa e patiloeng e fetisetsoang lipakeng tsa mohala oa thekeng le seteishene, empa e fana ka phihlello feela ea tlhahisoleseling e fetisitsoeng ka mongolo o hlakileng. Ka mohlala, melaetsa e rometsoeng ke setsi sa setsi ka mokhoa oa ho phatlalatsa le melaetsa ea pele ea khokahanyo e fetisoa ntle le ho ngolisoa, e leng se etsang hore ho khonehe ho bokella tlhahisoleseding e mabapi le hore na ke nomoro efe, neng le hore na ho ne ho e-na le nomoro efe).
Ho kenella ho hloka lisebelisoa tse eketsehileng. Ho thibela sephethephethe ho tloha seteisheneng feela, ho lekane hore USRP B210 programmable transceiver (SDR) e nang le li-antenna tse peli, e jang chelete e ka bang $ 2000. Ho thibela sephethephethe ho tloha mohaleng oa mohala ho ea seteisheneng, ho hlokahala boto e theko e phahameng haholo ea USRP X310 SDR e nang le li-transceiver tse ling tse peli (kit e bitsa chelete e ka bang $11000), kaha ho fofonela lipakete tse rometsoeng ka mehala ho hloka hore ho be le khokahano ea nako e nepahetseng lipakeng tsa liforeimi tse rometsoeng le tse amoheloang. le matshwao a ho amohela ka nako e le nngwe dihlopheng tse pedi tse fapaneng tsa maqhubu. Khomphuta e matla ka ho lekaneng e boetse e hlokeha ho khetholla protocol, mohlala, ho hlahloba sephethephethe sa seteishene sa setsi se nang le basebelisi ba mafolofolo ba 150, ho kgothaletswa tsamaiso ya Intel i7 CPU le 16GB ya RAM.
Likarolo tsa mantlha tsa LTESniffer:
- Decoding ea nako ea 'nete ea liteishene tsa taolo tsa LTE tse tsoang le tse tlang (PDCCH, PDSCH, PUSCH).
- Tšehetso bakeng sa litlhaloso tsa LTE Advanced (4G) le LTE Advanced Pro (5G, 256-QAM).
- Tšehetso bakeng sa liforomo tsa DCI (Downlink Control Information): 0, 1A, 1, 1B, 1C, 2, 2A, 2B.
- Ts'ehetso bakeng sa mekhoa ea phetiso ea data: 1, 2, 3, 4.
- Ts'ehetso bakeng sa likanale tsa "frequency division duplex" (FDD).
- Ts'ehetso bakeng sa liteishene tsa motheo tse sebelisang maqhubu a fihlang ho 20 MHz.
- Ho fumanoa ka mokhoa o itekanetseng oa merero ea modulation e sebelisitsoeng bakeng sa lintlha tse kenang le tse tsoang (16QAM, 64QAM, 256QAM).
- Ho iphumanela ka bohona ha li-setting tsa 'mele bakeng sa mohala o mong le o mong.
- Tšehetso ea LTE Security API: 'mapa oa RNTI-TMSI, pokello ea IMSI, profiling.
Source: opennet.ru