Go support for confidential transactions on Elements-based blockchains

The package is currently being developed. For stable versions, you must refer to the latest release

# Install latest tagged release
$ go get github.com/vulpemventures/go-elements@latest

• Broadcast unblinded transaction
• Broadcast blinded transaction - with unblinded input
• Broadcast blinded transaction - with blinded input
• Broadcast issuance transaction - with unblinded inputs, unblinded issuance, blinded outputs
• Broadcast issuance transaction - with unblinded inputs, blinded issuance, blinded outputs

• Chain parameters (prefixes, magic numbers, …)
• Pay to Public Key Hash
• Pay to Script Hash
• Pay to Witness Public Key Hash
• Pay to Witness Script Hash
• Tx serialization / deserialization
  • Use of confidential values instead of pure numbers
  • Fix order of witness in transaction serialization
  • Add confidential fields
  • Serialization for (witness) signature
• PSET / Bip174 for Elements
• Blech32
• CGO bindings for secp256k1-zkp
• Unblinding ins / Blinding outs / Blinding issuance ins
• Signing a confidential input (use 0 value amounts to produce the hash for the signature)
• Asset issuance
• Asset re-issuance
• Slip77

• Clone repository:

$ git clone https://github.com/vulpemventures/go-elements.git

• Enter into the project folder and install dependencies:

$ cd go-elements
$ go get -t -v ./...

• Run tests

For running tests it is required to have a running Nigiri locally, or at least a remote one reachable from the outside.
To run the tests it is mandatory to export an API_URL environment variable pointing to the URL of nigiri-chopsticks.

$ nigiri start --liquid
$ export API_URL=http://localhost:3001
$ go test ./... -v

• More detailed documentation

$ godoc -http ":8080"

http://localhost:8080/pkg/github.com/vulpemventures/go-elements/

• @tiero
• @altafan
• @sekulicd
• @francismars