Cryptocurency: Coin Privacy (re: US Homeland Security Can Now Track Privacy Crypto Monero)

[grarpamp]

On 9/9/20, Lee Clagett <forum at leeclagett.com> wrote:
>> The problem with Monaro, is that though it avoids the direct linking
>> of transactions that bitcoin suffers from, it leaks a whole lot of
>> data about networks of people transacting with each other

> The problem is no worse than Bitcoin - did you intend to promote Zcash
> here?

So why should the underlying ZKP / Homomorphic tech
behind Zcash not be promoted?
And or in comparison to that which underlies Monero.

> There's some negatives to that project that can be found via

Which technical negatives (beyond political, such as founder rewards)?
Any in the underlying ZKP tech itself?
No, properly executed "trusted setup" MPC is not really much
appearing a weakness, but moreso a negative sounding misnomer
seemingly bandied about by the competition without backing cause.

> websearch, but the z-address transactions are (assuming no bugs or math
> errors) not leaking the information you describe.

As for "Bitcoin-like" coins, some privacy evolution beyond simple
fuckme Bitcoin has occured in form of external and applicable
CoinJoin/JoinMarket, CashShuffle, CashFusion.
Taproot does not appear documented to lead to any
real level of cryptographic, or even statistical, user privacy yet.

But which coins, if any, are pursuing any of the above,
or any other thought-to-be-at-least-reasonably-strong,
privacy technologies... while at the same time eliminating
the ridiculous legacy of first gen O(tx) based blockchain
storing bloat forever mindset in favor of the much more
storage and processing efficient O(utxo) model?

>> I don't think anyone has broken it - I certainly could not -
>> but I expect that the adversaries are making efficient use of
>> what it does leak - that they can find interesting information in
>> what is out of scope of its security model.

Mind that always for any usage.

>> I favor Wasabi wallet, which mingles your bitcoins with those of a
>> large number of other people.

Many wallets, for example in Bitcoin_Cash-BCH space are
now integrating some of the above mix tech. Some of these
mix tech can be apply to all sorts of coins, regardless of
what other privacy tech the coin itself may or may not have.

>> The Lightning network ... but you then have the ... problem[s of]

Lightning is known to be quite problematic and a non-solution
on many fronts.