android/app/src/main/java/xyz/blueskyweb/pubsq/AppSecureRandomModule.java


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package xyz.blueskyweb.app;

import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReactMethod;
import com.facebook.react.bridge.Promise;

import java.security.SecureRandom;
import android.util.Base64;

public class AppSecureRandomModule extends ReactContextBaseJavaModule {
  public AppSecureRandomModule(ReactApplicationContext context) {
    super(context);
  }

  @ReactMethod
  public void generateSecureRandomAsBase64(int length, Promise promise) {
    SecureRandom secureRandom = new SecureRandom();
    byte[] buffer = new byte[length];
    secureRandom.nextBytes(buffer);
    promise.resolve(Base64.encodeToString(buffer, Base64.NO_WRAP));
  }

  @Override
  public String getName() {
    return "AppSecureRandomModule";
  }
}