Anyone with technical skill care to point out if dark wallet concept work?
The Darkwallet concept already does work and is being used right now. Go ahead and download it and start testing it in the testnet:
https://darkwallet.isDon't you essentially need to trust the darkwallet devs with your private keys when you have coins in this wallet? Isn't the darkwallet basically just using shared send on ever transaction, that researchers have determined to be no so anon?
Darkwallet is open source so anyone can audit the code, if you don't read the source yourself than you have to trust a friend just like with bitcoin core.
Yes, being in alpha , only use testnet coins, and there needs more work done. Not exactly shared send but a simplified version of coinjoin is being used. Coinjoin + stealth is pretty damn good for privacy but there are plans of strengthening the coinjoin implementation:
https://wiki.unsystem.net/en/index.php/DarkWallet/CoinMixing