How to use

generateSalt

method

in

com.oberasoftware.jasdb.api.security.CryptoEngine

private void createMandatoryAdminUser() throws JasDBStorageException {
  CryptoEngine cryptoEngine = CryptoFactory.getEngine();
  String salt = cryptoEngine.generateSalt();
  String contentKey = cryptoEngine.generateSalt();
  String encryptedContentKey = cryptoEngine.encrypt(salt, "", contentKey);
  User user = new UserMeta("admin", "localhost", encryptedContentKey, salt, cryptoEngine.hash(salt, ""), cryptoEngine.getDescriptor());
  userMetadataProvider.addUser(user);
  Grant grant = new GrantMeta("admin", AccessMode.ADMIN);
  GrantObjectMeta grantsMeta = new GrantObjectMeta(Constants.OBJECT_SEPARATOR, grant);
  String unencryptedGrants = SimpleEntity.toJson(GrantObjectMeta.toEntity(grantsMeta));
  String encryptedGrants = cryptoEngine.encrypt(salt, contentKey, unencryptedGrants);
  EncryptedGrants grants = new EncryptedGrants(grantsMeta.getObjectName(), encryptedGrants, salt, cryptoEngine.getDescriptor());
  grantMetadataProvider.persistGrant(grants);
}

  @Override
  public User addUser(String userName, String allowedHost, String contentKey, String password) throws JasDBStorageException {
    if(!userMetadataProvider.hasUser(userName)) {
      CryptoEngine cryptoEngine = CryptoFactory.getEngine();
      String salt = cryptoEngine.generateSalt();
      String encryptedContentKey = cryptoEngine.encrypt(salt, password, contentKey);
      String passwordHash = cryptoEngine.hash(salt, password);

      User user = new UserMeta(userName, allowedHost, encryptedContentKey, salt, passwordHash, cryptoEngine.getDescriptor());
      userMetadataProvider.addUser(user);
      return user;
    } else {
      return userMetadataProvider.getUser(userName);
    }
  }
}

private EncryptedGrants encryptGrants(GrantObject grantObject, UserSession userSession) throws JasDBStorageException {
  CryptoEngine cryptoEngine = CryptoFactory.getEngine();
  String contentKey = CryptoFactory.getEngine().decrypt(userSession.getUser().getPasswordSalt(), userSession.getAccessToken(), userSession.getEncryptedContentKey());
  String salt = cryptoEngine.generateSalt();
  String unencryptedData = SimpleEntity.toJson(GrantObjectMeta.toEntity(grantObject));
  String encryptedData = cryptoEngine.encrypt(salt, contentKey, unencryptedData);
  return new EncryptedGrants(grantObject.getObjectName(), encryptedData, salt, cryptoEngine.getDescriptor());
}