Google has been focusing on Android for some time now features aimed at detecting all attempts at “non-human” interaction with the user, and this is nowadays when calls, messages, unwanted communication via WhatsApp and similar services, etc. on the agenda more than ever, more than necessary. And in general, we’re talking about spam at best, at worst… scams of all kinds.

In this sense, Google has started deploying a new tool on Android devices, the so-called Android System Key Verifierdesigned to improve communication security. This application allows developers to store end-to-end encryption keys and gives users the ability to verify that applications are using the correct keys when communicating. This ensures that the messages originate from the contact’s legitimate device and not from a malicious third party.

Main features of Android Key Verifier This is similar to what would be done when requesting information that only a real person would know in order to verify their identity. The technology introduces the “Contact Keys” system, a feature announced for Android 15, though surprisingly the new app is compatible with versions from Android 10 and up. It only requires Google Play services to run, eliminating the need to have the latest version of the operating system.

Android System Key Verifier integrates two basic elements. First, it offers a service so that messaging apps like Google Messages can store encryption keys directly on the user’s device. Second, it provides an interface that allows users to share these keys using a QR code, as well as scan codes provided by other contacts. This mutual authentication process ensures that both devices are identified and associated with the correct contact; That way, if at any time a participant is suspected of changing devices without re-authentication, the keys will not match, alerting the user that they do not need to communicate with the original person.

Functionality of this tool It resembles contact key verification in iOS 17.2where the Apple Messages app will notify if an unknown device has been added to a contact. Similarly, Android System Key Verifier displays app-specific number comparison options in addition to scanning a QR code. Although not yet available in the Google Contacts app, it is expected that in future updates, users will be able to access QR codes through the contacts settings.

The contact verification feature in Google Messages is expected will be officially launched next yearand Google said it will be compatible with devices starting on Android 9. However, Android System Key Verifier currently requires Android 10 or higher, which suggests that Google may be struggling to extend compatibility to older versions or could be fine-tuning the final details.

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