human-crypto-keys/lib/algorithm.js

Generate and import human-friendly cryptographic keys using mnemonics or seeds

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _cryptoKeyComposer = require("crypto-key-composer");

var rsa = _interopRequireWildcard(require("./keys/rsa"));

var ed25519 = _interopRequireWildcard(require("./keys/ed25519"));

var _errors = require("./utils/errors");

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }

const supportedAlgorithms = {
  rsa,
  ed25519
};

const buildParams = (defaultParams, customParams) => Object.keys(customParams).reduce((params, key) => {
  // Do not allow unknown keys (params)
  if (defaultParams[key] == null) {
    throw new _errors.UnknownAlgorithmParamError(key);
  } // Do not allow nullish values


  if (customParams[key] == null) {
    throw new _errors.NilAlgorithmParamError(key);
  } // Do not allow different types


  if (typeof customParams[key] !== typeof defaultParams[key]) {
    throw new _errors.TypeMismatchAlgorithmParamError(key, typeof defaultParams[key]);
  }

  params[key] = customParams[key];
  return params;
}, { ...defaultParams
});

const parseAlgorithm = keyAlgorithm => {
  const algorithm = typeof keyAlgorithm === 'string' ? {
    id: keyAlgorithm
  } : keyAlgorithm;
  const type = supportedAlgorithms[algorithm.id] ? algorithm.id : (0, _cryptoKeyComposer.getKeyTypeFromAlgorithm)(algorithm.id);

  if (!type) {
    throw new _errors.UnknownAlgorithmError(algorithm.id);
  }

  const {
    generateKeyPair,
    defaultParams
  } = supportedAlgorithms[type];
  const {
    id,
    ...customParams
  } = algorithm;
  const params = buildParams(defaultParams, customParams);
  return {
    id,
    type,
    params,
    generate: generateKeyPair
  };
};

var _default = parseAlgorithm;
exports.default = _default;
module.exports = exports.default;