I-Generative Data Intelligence

UTom Hoznik ku-Potential Security Flaws ku-Bitwise's Spot Bitcoin ETF

Usuku:

U-Tom Hoznik we-Unchained Capital ubonakala ekhathazekile ngokuphepha kwempahla ye-BTC ye-Bitwise Asset Management's spot Bitcoin ETF.

Inhlokodolobha Engakhethiwe yinkampani yezinsizakalo zezezimali ezigxile kuBitcoin. Ihlinzeka ngezinsizakalo ezigxile ku-Bitcoin, okuhlanganisa ukugcinwa okuvikelekile, imalimboleko, nemikhiqizo yezezimali eyenza i-Bitcoin ibe yisibambiso. Le ndlela ikhanga ikakhulukazi kubantu ngabanye kanye namabhizinisi afuna ukusebenzisa i-Bitcoin holds ngaphandle kokuyithengisa. Enye yeminikelo yabo ephawulekayo isevisi ye-wallet ye-multisignature.

I-Multisignature (i-multisig) ibhekisela kuhlelo lwesiginesha yedijithali oludinga okhiye abaningi ukuze kugunyazwe umsebenzi we-cryptocurrency, okuthuthukisa ukuvikeleka okungaphezu kwamawalethi okhiye owodwa. Ekusetheni ama-multisig, isibopho negunya lokwenza umsebenzi kusatshalaliswa phakathi kwezinhlangano eziningi, ngalinye liphethe ukhiye oyimfihlo oyingqayizivele.

Ukuze umsebenzi uqinisekiswe futhi ucutshungulwe ku-blockchain, inombolo echazwe ngaphambilini yalaba khiye kufanele ivumelane futhi isayine. Lokhu kumiswa komkhawulo kunciphisa ubungozi bokuntshontshwa noma ukulahlekelwa, njengoba kungekho muntu oyedwa olawula ngokuphelele isikhwama semali. I-Multisig iwusizo ikakhulukazi ezinhlanganweni noma emaqenjini lapho ukuthengiselana kwezezimali kudinga ukuvumelana noma kubantu abafuna isendlalelo esengeziwe sokuvikeleka sezimpahla zabo zedijithali.

NgoJanuwari 24, i-Bitwise Asset Management, eyazichaza njengomphathi wesikhwama se-crypto index eMelika, yamemezela isibuyekezo esibalulekile mayelana ne-Bitwise Bitcoin ETF (BITB). Le ETF, kanye nezinye eziyishumi ezivela ezinkampanini ezihlukahlukene, ithole ukukhanya okuluhlaza okuvela ku-US Securities and Exchange Commission (SEC) ngoJanuwari 10 futhi yaqala ukuhweba ngakusasa.

I-Bitwise imemezele ngokuziqhenya ukuthi i-BITB ETF yayo ingeyokuqala e-US ukudalula ikheli lesikhwama esiphethe izimpahla zayo ze-Bitcoin. Lokhu kuthuthukiswa, njengokusho kwe-Bitwise, kunika amandla ukuqinisekiswa komphakathi kwezimpahla ze-ETF kanye nemisebenzi eyenziwayo ngokuqondile ku-blockchain. Le nkampani igcizelele ukuthi lesi sinyathelo siyavumelana nesimiso esiyisisekelo se-Bitcoin sokubonakala obala kwe-on-chain. I-Bitwise iyaziqhenya ngalokhu kuzibophezela, ikhombisa ukuzinikela kwayo ekuhlanganiseni izindinganiso ezibalulekile ku-BITB.

Ngaphezu kwalokho, i-Bitwise ibheka ukudalulwa kwamakheli esikhwama njengesinyathelo sokuqala emzamweni wayo oqhubekayo wokuthuthukisa ukubonakala komphakathi. Inkampani ibheke ngabomvu intuthuko yezobuchwepheshe yesikhathi esizayo futhi izimisele ukubambisana namafemu afana ne-Hoseki. Ngokubambisana okunjalo, i-Bitwise ihlose ukunikeza ubufakazi be-cryptographic besikhathi sangempela, ngaleyo ndlela ithuthukise ukubonakala nokwethembeka kwe-ETF yabo.

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Kamuva ngalolo suku, u-Tom Hoznik, isisebenzi sase-Unchained Capital, uthumele intambo enkundleni yezokuxhumana X exoxa ngezinyathelo zokuphepha ze-Bitwise Asset Management's spot Bitcoin ETF. U-Hoznik uthe i-BITB ayisebenzisi ukuphepha kwe-multisig ekubambeni kwayo kwe-Bitcoin, akubheka njengokubheka okubalulekile kwezokuphepha.

Ukuqonda Izinhlobo Zekheli Le-Bitcoin Wallet

U-Hoznik uchaza ukuthi uhlobo lwekheli lesikhwama se-Bitcoin elisetshenziswa yi-BITB libonisa indlela yalo yokuphepha. Uphawula ukuthi ikheli le-BITB liqala ngokuthi “1,” elihlonza njengekheli le-Pay to Public Key Hash (P2PKH). Lolu hlobo lwekheli luhlotshaniswa nezikhwama zesiginesha eyodwa (singlesig).

Ngokuphambene, amakheli ama-multisig, u-Hoznik awamelayo, asebenzisa amafomethi ahlukene: Khokha ku-Script Hash (P2SH), Khokhela Ufakazi Weskripthi Hash (P2WSH), noma Khokha ku-Taproot (P2TR). Lawa mafomethi ahlukaniseka emakhelini e-P2PKH futhi adizayinelwe ukuvikeleka okuthuthukisiwe ngokusetha ama-multisig.

Ukubaluleka kwe-Multisig kumabhalansi amakhulu

I-Multisig iyisici sokuvikela ku-Bitcoin lapho kudingeka khona amasiginesha amaningi (kusuka kokhiye abahlukene) ukuze kugunyazwe umsebenzi. Le ndlela ibaluleke kakhulu ekuvikeleni amabhalansi amakhulu e-Bitcoin, njengoba yethula ukuphepha komkhawulo, okusho ukuthi izinhlangothi ezimbalwa kufanele zivume ukwenza ukuthengiselana. U-Hoznik ugcizelela ukuthi i-multisig iyindlela "ye-bitcoin-native, ihlolwe impi", ephakamisa ukwethembeka kwayo kanye nerekhodi eliqinisekisiwe le-Bitcoin ecosystem.

Ezinye izindlela ze-Multisig: SSS ne-MPC

U-Hoznik ukhuluma ngezindlela ezimbili zokuphepha ezihlukile: Ukwabelana Ngemfihlo kuka-Shamir (SSS) kanye ne-Multiparty Computation (MPC). Zombili izindlela zinokuhwebelana kwazo uma kuqhathaniswa ne-multisig:

  • Ukwabelana Okuyimfihlo kuka-Shamir (SSS): Le ndlela ihlanganisa ukuhlukanisa imfihlo (njengokhiye wangasese) ibe izingxenye, ezisatshalaliswa phakathi kwabahlanganyeli. Isengcupheni ekudalweni kokhiye nalapho ukhiye uhlanganiswa kabusha ukuze kusayinwe okwenziwayo, okwethulwa amaphuzu angaba khona okuhluleka okukodwa.
  • I-Multiparty Computation (MPC): I-MPC ye-Elliptic Curve Digital Signature Algorithm (i-ECDSA, i-cryptographic algorithm esetshenziswa ku-Bitcoin) ayivivinywa kangako ngempi kune-multisig futhi inkimbinkimbi kakhulu. Lokhu kuyinkimbinkimbi kungaholela endaweni ebanzi yezinkinga ezingase zibe khona.

I-Hoznik's Ideal Security Recommendation

U-Hoznik uncoma ukuthi izikhungo ezifana ne-Bitwise kufanele zisebenzise i-multisig njengendlela yazo yokuphepha eyisisekelo. Ukwengeza, bangasebenzisa ama-ejenti abalulekile asabalalisiwe, ngamunye esebenzisa i-SSS noma i-MPC, kukhiye ngamunye ukuze kuthuthukiswe ukuvikeleka ngokuqhubekayo. Le ndlela izohlanganisa ukuqina kwe-multisig nezendlalelo ezengeziwe zokuphepha ezinikezwe i-SSS noma i-MPC.

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