Tag Archives: Zero-knowledge proof

On Coin Center’s blog, Matthew Green and Peter van Valkenburgh write: Censorship resistance is the only way to guarantee that a digital asset truly is “bearer” and can be sent directly from one person to another without reliance on a third party. Cryptocurrencies achieve this property by making network participants (miners) compete for the power to add transactions to the ledger. Even if some miners wish to censor a transaction, we assume that others will not, particularly if it means...

The Economist reports about a new digital currency platform, Zcash. The platform could handle more transactions than for example, Bitcoin. The open-source project backed by outside investors offers confidentiality: Bitcoin obscures the identity of currency owners, but the “blockchain”, the ledger that keeps track of all the coins, is open and can be analysed to see the flows of funds. This is a serious barrier for banks: blockchains could reveal their trading strategies and information...