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"Bitcoin being compared to digital gold is an understatement. Really what it is, is digital monetary nuclear weapons." @MustStopMurad
Forwarded from crypto eli5
grin

the first effort to implement mimblewimble protocol started in november 2016 under the name grin. the initial code was posted on irc by ignotus peverell who is still the most active grin contributor. this implementation is written in rust with most core features already implemented. grin is currently at testnet3 with one more testnet planned before launch.

besides the very impressive core protocol, here are some interesting features that are already working in grin:
- cuckoo cycle mining.
- schnorr signatures, also called aggregate signatures, paving the way to noscriptless noscripts and smart contracts.
- dandelion, which makes initial sender ip more difficult to track. all transactions wander a little across network before getting broadcasted.
- bulletproofs, which allow for confidential transactions with much smaller zero-knowledge proofs and require no trusted setup.
- flyclient, a super light client which syncs the merkle root of all previous block headers instead of references to the previous block. it allows to check the inclusion of any previous block by just storing the head.
- atomic swaps, the first being done against ethereum.

grin decided not to engage in ico and doesn't accept any money other than donations. the project has recently raised about $57k to fund a full-time developer till february 2019.

grin-tech.org
https://github.com/mimblewimble/grin