Why not zerocoin? Any unproven tech will need to be reviewed by cryptographic authority and we know that is not so easy.
I'll read Zerocoin whitepaper tomorrow and will think. Today is too late, time to drink milk and go to bed soon.
In my search for a crypto algo reviewer, I was referred to a crypto expert named Matt Green. He did get back to me yesterday and said he was currently advising Zerocoin but might have some time to review our code. I did mention to him that we were interested in implementing Zerocoin with Nxt POS and would like him to review our code if he could. Here is his blog, seems like a really nice guy;
http://blog.cryptographyengineering.com/Also, I've had a hard time getting crypto people to review the code, they would rather review a protocol design document instead of code.
That's the zerocoin professor!
zerocash is scheduled to be released in May as altcoin.
I can send him a proposal with bounty offer if you would like to put some text together regarding what you want.
If you are in contact with him, just tell him NXT community definitely wants zerocoin/zerocash implemented on top of NXT. We have bounties of at least 1M NXT, maybe 2M NXT, maybe more.
I would imagine if zerocoin professor commits to making his grad students port zerocash on top of NXT, NXT community will donate millions of NXT to his favorite place, including him! We will of course have dev support so they won't have to waste time debugging entirely new blockchain. It will speed up deploying zerocash tech, which is really what he wants.
Leave the blockchain stuff to NXT, they can focus on zerocash algos. We even have AM mechanism to store the zeroknowledge proofs.
James