secrets.js

import { encryptMessage } from "./signingUtilities.js";
import secrets from "../lib/secrets";

/** Initialize
 */
export const initSecrets = (bits, rngType) => secrets.init(bits, rngType);

/**
 * Function generates a random bits length string, and output it in hexadecimal format
 *
 * @param {number} bits
 * @returns {string} hex
 */
export const generateRecoveryKey = bits => secrets.random(bits);

/**
 * Divide a secret expressed in hexadecimal form into numShares number of shares, requiring that threshold number of shares be present for reconstructing the secret
 *
 * @param {string} secret
 * @param {number} numShares
 * @param {number} threshold
 * @param {number} [padLength=128]
 * @returns {array}
 */
export const divideSecretToShares = (
  secret,
  numShares,
  threshold,
  padLength = 128
) => secrets.share(secret, numShares, threshold, padLength);

/**
 * Reconstructs a secret from shares
 *
 * @param {array} shares
 * @returns {string}
 */
export const combineSecret = shares => secrets.combine(shares);

export const encryptShare = (share, publicKey) =>
  encryptMessage(share, publicKey, "secretPart");