@requestnetwork/epk-signature

Ethereum Private Key Signature Provider.

@requestnetwork/epk-signature is a typescript library part of the Request Network protocol.

Implementation of the signature provider from the private keys. The signature provider is used to make signature in the Request Network Protocol (e.g.: see Request Logic).

It uses the Request Network Protocol concepts of Identity and Signature described in the request logic specification.

Installation

npm install @requestnetwork/epk-signature

Usage

import { IdentityTypes,  SignatureTypes } from '@requestnetwork/types'

import EthereumPrivateKeySignatureProvider from '@requestnetwork/epk-signature'

const signatureParametersExample: SignatureTypes.ISignatureParameters = {
  method: SignatureTypes.METHOD.ECDSA,
  privateKey: '0xc87509a1c067bbde78beb793e6fa76530b6382a4c0241e5e4a9ec0a0f44dc0d3',
};

// Identity from the previous signature parameter
const identityExample: IdentityTypes.IIdentity = {
  type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
  value: '0x627306090abab3a6e1400e9345bc60c78a8bef57'
};

// Construct the provider with a
const signatureProvider = new EthereumPrivateKeySignatureProvider(signatureParametersExample);

// can list the identity usable
const listOfAvailableIdentity = signatureProvider.getAllRegisteredIdentities(); // [identityExample]

// can sign data with identity
const dataToSign = { ... };
const signedData = await signatureProvider.sign(dataToSign, identityExample); // { data: { ... }, signature: { method: SignatureTypes.METHOD.ECDSA, value: '0x...' }}

// can add a new signature parameters
signatureProvider.addSignatureParameters({method: ..., privateKey: ...});

// can remove a signature parameters from its identity
signatureProvider.removeRegisteredIdentity({type: ..., value: ...});

// can remove all signature parameters
signatureProvider.clearAllRegisteredIdentities();

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change. Read the contributing guide

License

MIT