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Questions tagged [trust]

Trust is when one party relies upon the representations made by another party such that the relying party would be harmed if the representations were inaccurate. Trust exists between users of crypto-currencies and the developers of the software they use, between mining pool managers and their miners, and between exchanges or e-wallet services and their users.

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1answer
107 views

How to recover an address from the signed message?

I use Trust SDK for signing messages and transactions. I recover a transaction (Trust.signTransaction()) like this: val tx = Geth.newTransactionFromRLP(Numeric.hexStringToByteArray(response.result)) ...
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Production Fork of Ethereum

everyone! I have a project, where I surely need to implement transparency of all the actions doing in the network. Let's say I want to create public asset tracking. So everybody who posts an asset in ...
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Is there a decentralized zk-SNARK (zero-knowledge Succinct Non-Interactive ARgument of Knowledge)?

Normally, in zk-SNARK, we need to generate two public keys: one for prover and one for verifier. However, the input parameter of this generator algorithm must be secret, meaning that it must be hidden ...
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What is the Oracle Problem definition exactly and briefly?

What is the Oracle Problem definition exactly and briefly? Does it mean "trusting on a centralized Oracle" ? Or "How to reach a consensus between a group of Oracles" ? Is the matter "centralization" ...
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1answer
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Trustless Inter-chain transaction with Bitcoin- are there any flaws?

Let's say that Alice wants to send Bob 1 BTC, and in return Bob will send Alice 1 ETH. Alice's Bitcoin address is BTC_A, and Alice's Ethereum address is ETH_A. Likewise, Bob owns addresses BTC_B and ...
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550 views

Smart contracts and the inherent lack of security in trusting compiled byte code

Smart contracts on the blockchain are compiled. Is there any system in place to verify all the public dapp contracts do what they propose to be doing? i.e. this could be done by compiling open-source ...
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What inputs to smart contracts can be maliciously modified by miners, beyond timestamps? Why isn't this caught by mining verification?

Are there other trusted inputs which miners could maliciously modify which still get accepted by blockchain verification? I realize the timestamp can be modified in a small way to potentially modify ...
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How to design a provably fair dyanamic between a central server and smart contract

I'm looking for a good design pattern that involves a central server but (hopefully) leverages the blockchain for provable fairness. Let's say I intend to build a system that generates math problems, ...
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Can the smart contracts guarantee that I can get the coffee that I paid in cryptocurrency? [closed]

Let's assume that there is no any protection from any authority, government or law. They are completely absent. Can the smart contracts guarantee that I can get the coffee in the real world that I ...
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1answer
348 views

Is “contact address” on etherscan.io 100% trustable?

Let's say I want to know if the token OMG or TRX is compatible with myetherwallet, metamask, and other ERC-20 compatible wallets. I go to the website https://etherscan.io/ and search for it, and I see ...
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Blockchain - how provenance is achieved?

I understand that blockchain is immutable and eliminates the need of middleman with smart contracts. But I think there's still chance for everyone to cheat the system like - Seller sends the asset to ...
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Trusted Hardware

Can trusted Hardware (eg. sgx + town crier) replace most smart contract usecases or are they more complementary to each other? How does trusted hardware like town crier work?
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How long does it take to reach consensus? [duplicate]

I know it takes about 10 minutes on Bitcoin? How long does it take to reach consensus on Ethereum so that I can start trusting a transaction? EDIT: I am not asking about pending transactions. ...
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348 views

Research/projects on trust in smart contracts

In this previous question, it is discussed how one can trust a smart contract. If you assume smart contracts are autonomous agents, then certain parts of this trust are enforced by the Ethereum ...
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1answer
190 views

With IPFS, can a developer give complete control of a storage account to a smart contract?

With IPFS, can a developer give complete control of a storage account (or ownership?) to a smart contract? So that no human can edit/delete the files uploaded by the smart contract to the IPFS ...
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1answer
512 views

What are the identities of the Ethereum/DAO white hat hackers?

Who are the Ethereum/DAO white hat hackers? How can the community be assured that they can be trusted? Are they using the same exploit as the black hat hacker used? What prevents the white hat ...
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3answers
202 views

How are end-users meant to build trust towards smart contracts (and their originators)?

One of the benefits commonly associated with Ethereum is that it allows end-users to interact directly with smart contracts and thereby removing the need for trusted-third-parties. In cases where: ...