@requestnetwork/epk-cipher

Ethereum Private Key Cipher Provider.

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

Implementation of the cipher provider from the private keys. The cipher provider is used to make encryption and decryption in the Request Network Protocol (e.g.: see Transaction Manager).

It uses the Request Network Protocol concept of Identity described in the request logic specification.

Installation

npm install @requestnetwork/epk-cipher

Usage

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

import EthereumPrivateKeyCipherProvider from '@requestnetwork/epk-cipher'

const cipherParametersExample: EncryptionTypes.ICipherParameters = {
  key: '0xc87509a1c067bbde78beb793e6fa76530b6382a4c0241e5e4a9ec0a0f44dc0d3',
  method: EncryptionTypes.METHOD.ECIES,
};

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

// Construct the provider with a
const cipherProvider = new EthereumPrivateKeyCipherProvider(cipherParametersExample);

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

// can decrypt data with identity
const dataToDecrypt = "02....";
const decryptedData = await cipherProvider.decrypt(dataToDecrypt, identityExample); // "Decrypted data..."

// can add a new decryption parameters
cipherProvider.addDecryptionParameters({method: EncryptionTypes.METHOD.ECIES, key: ...});

// can remove a cipher parameters from its identity
cipherProvider.removeRegisteredIdentity({type: IdentityTypes.TYPE.ETHEREUM_ADDRESS, value: ...});

// can remove all cipher parameters
cipherProvider.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