Create a Payment Channel using Scilla

[vaivaswatha]

https://medium.com/@matthewdif/ethereum-payment-channel-in-50-lines-of-code-a94fad2704bc

[AmritKumar]

@vaivaswatha This will require signature verification in the contract. Let us put this on hold. In the future, we may want to support some other crypto primitives beyond hashing such as signature verification, cryptographic commitments, etc. We will work on it once we have those crypto-primitives ready.

[ilyasergey]

I'm assigning @vaivaswatha and @edisonljh so this would not be forgotten after #66 is done.

[edison0xyz]

Sure, this looks interesting to do. Will follow-up after #66 is done.

[vaivaswatha]

@edisonljh #66 is now complete. You can refer to tests/contracts/schnorr/ for an example contract that uses Schnorr signatures.

Unassigning myself.

[AmritKumar]

@edisonljh You may want to do a multisig wallet contract first? An example is here: https://github.com/gnosis/MultiSigWallet

[AmritKumar]

Reassigning to @jjcnn. Let's start with a multisig first and then we can do a payment channel.