Cov kws tshawb fawb ntawm University of Illinois tau tshawb pom qhov tsis zoo hauv Bitcoin (BTC) Xob Laim Network uas tuaj yeem ua rau tub sab ntawm 750 BTCs (kwv yees li $ 18 lab).
Ob tus kws tshawb fawb, Cosimo Sguanci thiab Anastasios Sidiropoulos, luam tawm a daim ntawv qhov twg lawv tau piav qhia txog qhov tsis zoo nyob rau hauv Txheej Txheej 2 network siv cov ntaub ntawv hypothetical uas cov nodes siab phem tuaj yeem cuam tshuam rau kev tawm tsam.
"Lub koom haum ntawm tsuas yog 30 nodes tuaj yeem kaw cov nyiaj ntawm 31% ntawm cov channel rau li 2 lub hlis dhau los ntawm kev tawm tsam zombie, thiab tuaj yeem nyiag ntau dua 750 BTC los ntawm kev siv nyiaj ntau ob zaug."
Zombie nres
Raws li daim ntawv, kev tawm tsam zombie yog ib hom kev ua phem uas ua rau lub network thiab ua rau xob laim network siv tsis tau.
Kev tawm tsam zombie yog qhov xwm txheej uas qee cov nodes tsis teb, yog li xauv cov nyiaj txuas nrog cov nodes.
Daim ntawv tau hais tias tib txoj hauv kev los tiv thaiv qhov kev tawm tsam no yuav yog rau cov neeg ncaj ncees kaw lawv cov channel thiab rov qab mus rau Bitcoin Layer 1 network. Tab sis qhov ntawd yuav raug nqi ntau hauv cov nqi sib pauv.
Muab ob npaug rau siv tua
Lwm hom kev tawm tsam loj uas nrhiav pom los ntawm cov kws tshawb fawb yog kev siv nyiaj ob zaug. Qhov kev tawm tsam yuav xav tau kev koom tes ntawm ntau lub siab tsis zoo kom dhau ntawm Bitcoin Txheej 1 blockchain nrog kev dag ntxias kaw kev lag luam.
Yog tias cov neeg tawm tsam tuaj yeem them tus nqi siab uas tshwm sim los ntawm kev sib tsoo network, lawv yuav muaj peev xwm hla cov kab thiab ob npaug siv Bitcoin.
Tab sis qhov kev tawm tsam no tsuas yog ua tau thaum muaj qhov tsis txaus ntseeg hauv kev teeb tsa ntawm ib qho ntawm Lightning Networks watchtowers.
Lub luag haujlwm ntawm Watchtowers
Cov neeg saib xyuas khaws cia ntawm lub xeev ntawm Lightning Network thiab khaws tag nrho cov ntaub ntawv siv rau kev lag luam tsis tu ncua, tseem hu ua kev ncaj ncees kev lag luam.
Cov nodes ncaj ncees yuav tsum tau xa cov kev ncaj ncees kev lag luam los tawm tsam qhov kev thov dag, yog li yog tias txhua tus neeg saib xyuas ua haujlwm tau zoo, nws yog qhov yooj yim kom paub tseeb tias kev dag ntxias kaw qhov kev thov.
Lub tsev saib xyuas tsis zoo tuaj yeem muab qhov chaw nkag zoo meej rau kev siv nyiaj ntau ob zaug, uas tuaj yeem cuam tshuam rau cov neeg raug tsim txom.
Kev tawm tsam ob zaug yuav ua rau muaj kev puas tsuaj rau lub network
Cov kws tshawb fawb tau sau tias qhov kev siv nyiaj ob zaug tuaj yeem ua rau muaj kev puas tsuaj loj tshaj plaws yog tias nws tshwm sim.
Lawv ntxiv hais tias qhov hnyav yuav tsuas nce raws li qhov network txuas ntxiv txhim kho, yog li qhov yuav tsum tau daws cov teeb meem tsis zoo thiab tam sim ntawd.
Lawv xaus lus los ntawm kev pom zoo kom ceev faj kev teeb tsa ntawm cov saib. "Qhov zoo tshaj plaws, lawv yuav tsum saib xyuas cov txheej txheem-1 congestion thiab teb aggressively nyob rau hauv cov ntaub ntawv ntawm congestion siab," daim ntawv sau tseg.
Qhov kev tshwm sim tshiab ntxiv ntxiv rau cov npe ntawm lwm yam vulnerabilities nyob rau hauv lub network, xws li kev tu siab, dej nyab thiab nyiag khoom, lub sij hawm dilation dab noj hnub, thiab pinning.
Lub caij no, txawm tias muaj qhov tsis zoo no, cov neeg ua phem tsis tuaj yeem siv lub network.
Tau qhov twg los: https://cryptoslate.com/researchers-discover-vulnerabilities-in-bitcoin-layer-2-lightning-network/