example.js

const paillierBigint = await import('#pkg') // eslint-disable-line
// import * as paillierBigint from 'paillier-bigint'

async function paillierTest () {
  // (asynchronous) creation of a random private, public key pair for the Paillier cryptosystem
  const { publicKey, privateKey } = await paillierBigint.generateRandomKeys(3072)

  // Optionally, you can create your public/private keys from known parameters
  // const publicKey = new paillierBigint.PublicKey(n, g)
  // const privateKey = new paillierBigint.PrivateKey(lambda, mu, publicKey)

  const m1 = 12345678901234567890n
  const m2 = 5n

  // encryption/decryption
  const c1 = publicKey.encrypt(m1)
  console.log(privateKey.decrypt(c1)) // 12345678901234567890n

  // homomorphic addition of two ciphertexts (encrypted numbers)
  const c2 = publicKey.encrypt(m2)
  const encryptedSum = publicKey.addition(c1, c2)
  console.log(privateKey.decrypt(encryptedSum)) // m1 + m2 = 12345678901234567895n

  // multiplication by k
  const k = 10n
  const encryptedMul = publicKey.multiply(c1, k)
  console.log(privateKey.decrypt(encryptedMul)) // k · m1 = 123456789012345678900n
}
paillierTest()

export {}