O Lenei Bitcoin Ma mea sese a Ethereum, e tusa ai ma lenei suʻesuʻega Pentagon

By Bitcoinist - 1 tausaga talu ai - Taimi Faitau: 3 minute
Aso Lulu, Iuni 29, 2022 4:46 PM

O Lenei Bitcoin Ma mea sese a Ethereum, e tusa ai ma lenei suʻesuʻega Pentagon

Kamupani saogalemu Trail of Bits na lafoina a tala on potential vulnerabilities that can allegedly affect the Bitcoin (BTC) and Ethereum (ETH) blockchain. Called “Are Blockchains Decentralized?”, the report was funded by the U.S. Department of Defense via its Defense Advanced Research Projects Agency (DARPA).

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The report is focused on Bitcoin and Ethereum but approaches other blockchain-based platforms using Proof-of-Work (PoW) and Proof-of-Stake (PoS) and Byzantine Fault Tolerant consensus protocols in general.

O le suʻesuʻega na faʻaiʻu ai o nei fesoʻotaʻiga 'cryptographic vaega e "malosi", ma o loʻo i ai faʻafitauli faʻaletonu i le faʻatinoina o poloka poloka, ma maliega autasi. I se isi faaupuga, e talitonu le kamupani malupuipuia poloka poloka e mafai ona faʻaaogaina, ae o le cryptography e lagolagoina i latou e malosi.

Trail of Bits arrived at the following conclusions during their investigation: Bitcoin, Ethereum, and other blockchains have a “privileged set of entities” with the power to change their transactions, unencrypted traffic, nodes running old “vulnerable” software, and others.

I le aotelega, o loʻo taʻua e le lipoti o fesoʻotaʻiga poloka poloka e le o faʻasalalau, ma o loʻo latou faʻaleagaina i se faʻasologa o osofaʻiga osofaʻiga ma faʻalavelave mai tagata i fafo. Aemaise lava, na latou faʻailoa mai o fesoʻotaʻiga poloka poloka o loʻo i ai nei e leai se "Sybil cost" o lona uiga e mafai ona "faigofie" osofaʻia:

For a blockchain to be optimally distributed, there must be a so-called Sybil cost. There is currently no known way to implement Sybil costs in a permissionless blockchain like Bitcoin or Ethereum without employing a centralized trusted third party (TTP)Until a mechanism for enforcing Sybil costs without a TTP is discovered, it will be almost impossible for permissionless blockchains to achieve satisfactory decentralization.

E leai se aoga e fai atu, ua teena e le sosaiete crypto faaiuga o nei sailiga. O tupe tetele e lua e ala i maketi maketi BTC ma le ETH na faʻavae i luga o le manatu o le fatuina o faiga faʻapitoa, faʻalagolago, manino, ma tatala. O lu'itau a le lipoti e fai mai ua latou le manuia i lea tulaga.

e Bitcoin And Ethereum Truly Decentralized?

O le lipoti e matua fefinauai ona o ana sailiiliga, o le saʻo o ana faaiuga, ma talu ai na maua tupe mai le US Pentagon, na faia ai e le malo o lenei atunuu ni faʻamatalaga faʻafefe i le pisinisi crypto ma cryptocurrencies.

The CTO and Co-founder at Swan Bitcoin Yan Pritzker and its Editor-in-Chief Tomer Strolight mea moni-siakiina the investigation and arrived at discrepancies. Their arguments were in support of Bitcoin that “most blockchains are centralized to varying degrees (…)”.

The report from Pritzker and Strolight studies Trail of Bits claims one by one. First, they said Bitcoin lacks a “privileged set of entities” capable of changing its code, as it’s the user running the nodes that decide which software code they run. They add:

Even if we focus on the most popular Bitcoin tagata o tausia, bitcoin-core, the claim that four people control the source code is also FALSE (…). Many other blockchains employ a forced-upgrade mechanism such as Ethereum’s difficulty bombs. In those cases, we find the claim to be largely TRUE (…).

E le gata i lea, na faʻaalia e Pritzker ma Strolight le eseesega i le va o vaitaʻele eli ma miners e faʻamaonia ai e le mafai e le muamua ona faʻalavelaveina le fesoʻotaʻiga, e pei ona fai mai le lipoti a le DARPA. I luga o le BTC's Sybil tau osofaʻiga, o loʻo taʻua e le lipoti le faʻamatalaga o loʻo mulimuli mai pe na faʻapefea ona faia le cryptocurrency ma le faʻamoemoe e puipuia ai lenei osofaʻiga i lana fesoʻotaiga:

The invention of Nakamoto Consensus (i.e. Bitcoin’s reliance on proof of work for source of truth) was literally designed to prevent Sybil attacks. Satoshi wanted any participant to be able to add a block, but choosing one user at random would be open to individuals pretending to be many users. But work cannot be faked (…).

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I le taimi o le tusitusi, o le tau a le BTC na faʻamauina le 3% i le 24 itula mulimuli ma fefaʻatauaʻiga i le $20,000.

Punavai autu: Bitcoino