Struct ArkoorBuilder 

pub struct ArkoorBuilder<'a, T: Clone> {
    pub input: &'a Vtxo,
    pub user_nonce: &'a PublicNonce,
    pub outputs: Cow<'a, [T]>,
}

This types helps both the client and server with building arkoor txs in a synchronized way. It’s purely a functional type, initialized with the parameters that will make up the arkoor: the input vtxo to be spent and the desired outputs.

The flow works as follows:

• sender uses the constructor to check the request for validity
• server uses the contructor to check the request for validity
• server uses ArkoorBuilder::server_cosign to construct a ArkoorCosignResponse to send back to the sender
• sender passes the response into ArkoorBuilder::build_vtxos to construct the signed resulting VTXOs

Fields

input: &'a Vtxo

user_nonce: &'a PublicNonce

outputs: Cow<'a, [T]>

Implementations

impl<'a, T: Borrow<VtxoRequest> + Clone> ArkoorBuilder<'a, T>

pub fn new( input: &'a Vtxo, user_nonce: &'a PublicNonce, outputs: impl Into<Cow<'a, [T]>>, ) -> Result<Self, ArkoorError>

Construct a generic arkoor builder for the given input and outputs.

pub fn txouts(&self) -> Vec<TxOut>

Construct the transaction outputs of the resulting arkoor tx.

pub fn unsigned_transaction(&self) -> Transaction

pub fn sighash(&self) -> TapSighash

pub fn total_weight(&self) -> Weight

pub fn server_cosign(&self, keypair: &Keypair) -> ArkoorCosignResponse

Used by the Ark server to cosign the arkoor request.

pub fn verify_cosign_response( &self, server_cosign: &ArkoorCosignResponse, ) -> bool

Validate the server’s partial signature.

pub fn unsigned_output_vtxos(&self) -> Vec<Vtxo>

Construct the vtxos of the outputs of this OOR tx.

These vtxos are not valid vtxos because they lack the signature.

pub fn build_vtxos( &self, user_sec_nonce: SecretNonce, user_key: &Keypair, cosign_resp: &ArkoorCosignResponse, ) -> Result<Vec<Vtxo>, IncorrectSigningKeyError>

Finish the arkoor process.

Returns the resulting vtxos and the signed arkoor tx.