Darwinia BSC Bridge Task - Githubissues

darwinia-network / bridger

Relayer client implementation for Darwinia LCMP protocols.

https://rust-docs.darwinia.network/bridger

GNU General Public License v3.0

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Darwinia BSC Bridge Task #175

Closed wuminzhe closed 2 years ago

wuminzhe commented 3 years ago

clique, aura, heco, bsc.

`Backing Contract` on PoA chain

storage: [who(from) locked how many(amount) what(erc20) tokens]

`Issuing Pallet` on Darwinia

verify messages
issue mapped tokens

`PoA Light Client Pallet` on Darwinia

verify PoA headers and their finality.
store PoA headers

https://github.com/paritytech/parity-bridges-common/tree/master/modules/ethereum

Something to change:

The import header call should be changed to support forking because clique allows multiple authorities to generate blocks during a block generation period
The fork is solved by comparing the accumulated difficulty
A block must wait for 1/2*N+1 confirmations before being finalized

https://docs.binance.org/smart-chain/guides/concepts/consensus.html https://docs.hecochain.com/#/consensus

`Relayer`

PoA > Darwinia
- relay blocks
- subscribe lock event
- determine whether it need to relay the the lock related message to Darwinia
  1. check the latest block's storage
  2. check the status of the message on Darwinia
- relay the lock related message to Darwinia
ACK message (Darwinia > PoA)
- relay the issue event proof to PoA chain.

wuminzhe commented 3 years ago

https://github.com/darwinia-network/darwinia/issues/656

fewensa commented 2 years ago

Use new solutions. https://github.com/darwinia-network/darwinia/issues/753