hi Luke, > current crypto-currencies with the exception of monero are based > around the principle of hiding... so of course they are being hunted > and hounded. monero and i believe grin-coin at least provide both > privacy *and traceability*, such that an individual may *prove* to > their local tax authorities that yes they accepted the transaction, > but that they can also prove that the transaction was completed > *outside of their jurisdiction*.
Are you talking about transactions that the user reports to the authorities in the first place? In that case the user would simply not report transactions that are "inside the jurisdiction", whatever that means. > in reading the mimblewimble whitepaper i noticed that it said that > spammers can carry out a denial-of-service attack by flooding the > network with "wrong unspent outputs". the proposed solution was to > download the blockchain from a torrent or from multiple users. The whitepaper at https://download.wpsoftware.net/bitcoin/wizardry/mimblewimble.txt has this paragraph: 3. There is a denial-of-service option when a user downloads the chain, the peer can give gigabytes of data and list the wrong unspent outputs. The user will see that the result do not add up to 0, but cannot tell where the problem is. which to be honest I do not quite understand. The user normally downloads the chain by requesting blocks from peers, starting with just the headers which can be checked for proof-of-work. Having identified the chain of headers with the most work (cumulative difficulty), the user then requests the full blocks one or a few at a time. If any of them have bad data, then the user would reject them, and ban the peer that provided it with the bad block. I don't see how the user would receive "gigabytes" of bad data in this model, unless all peers (s)he connects to are malicious. regards, -John -- Mailing list: https://launchpad.net/~mimblewimble Post to : mimblewimble@lists.launchpad.net Unsubscribe : https://launchpad.net/~mimblewimble More help : https://help.launchpad.net/ListHelp
