Hash a Password with Argon2 (Defaults)

Demonstrates Crypt2.Argon2HashPassword, which hashes a password with Argon2 and returns a PHC-format string. Passing an empty options string uses all defaults, including a random salt.

import { Crypt2 } from '@chilkat/react-native'

function chilkatExample() {
  const crypt = new Crypt2();

  // The password should come from a secure source rather than being hard-coded.
  const password = 'correct horse battery staple';

  // Hash the password using all defaults by passing an empty options string.  The defaults are
  // Argon2id, version 19, 3 iterations, 64 MB of memory, 1 lane, a 32-byte hash, and a 16-byte random
  // salt.  A random salt is generated automatically, which is what should normally happen.
  let phcHash: string;
  try {
    phcHash = crypt.argon2HashPassword(password, '');
  } catch {
    console.log(crypt.lastErrorText);
    return;
  }

  // The returned PHC-format string records the variant, version, cost parameters, salt, and hash --
  // everything needed to verify the password later.  Store the whole string.
  console.log(phcHash);
}