Ethereum

The “largest remaining challenge” for Ethereum, according to co-founder Vitalik Buterin, is privacy.He came up with the idea of “stealth addresses,” which he claimed in a <a href="https://vitalik.ca/general/2023/01/20/stealth.html" rel="noopener noreferrer nofollow">blog post</a> might potentially protect users by anonymizing peer-to-peer transactions, nonfungible token (NFT) transfers, and Ethereum Name Service (ENS) registrations.<h2 id="header-0">Ethereum privacy: Vitalik explains anonymous on-chain transactions</h2>Buterin outlined how anonymous on-chain transactions can be carried out between two parties in the blog post. A user who wants to receive assets will first create and preserve a “spending key,” which is used to create a stealth meta-address later on.This address is then sent on to the sender, who can execute a cryptographic computation on the meta-address to construct a stealth address that belongs to the recipient.The sender can then transfer assets to the receiver’s stealth address while also publishing a temporary key to certify that the receiver owns the stealth address.As a result, for each new transaction, a new stealth address is produced.In August, <a href="https://micky.com.au/vitalik-buterin-proposes-nft-stealth-addresses/" rel="noopener noreferrer nofollow">Buterin described stealth addresses</a> as a “low-tech approach” for surreptitiously transferring ownership of ERC-721 tokens, also known as NFTs.The Ethereum co-founder explained that the proposed stealth address concept provides privacy in a different way than the now-sanctioned Tornado Cash.

What’s keeping Ethereum from integrating a privacy solution?

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