At first glance, the datAshur BT, from iStorage, looks like any other USB-A drive. But this model contains technology worthy of a James Bond movie to protect your files. First of all, it embeds an AES-XTS 256-bit hardware encryption processor. But above all, it can be unlocked with your smartphone, via a Bluetooth connection.
How does it work in practice? Is the key fast? We took over a 128 GB model, sold for 167 euros (the lowest price is 95 euros for 16 GB).
After removing its cap, we insert the datAsur BT into our test computer and … nothing happens. The activity LED remains red.
LM – 01net.com – The key without its protective cap.
The app is mandatory
Don’t panic, it’s normal, even a good sign. Because you have to download the free datAshur BT application on your smartphone, available for iOS and Android. Once the app has been downloaded, you obviously have to remember to activate Bluetooth on the mobile device, then … unplug the USB key.
It has, in fact, on its connector an 8-digit identifier that must be entered, only once, in the application. Then the app asks for a password to unlock the key (the default password is indicated in the manual). Mission accomplished: the key is unlocked and its content becomes accessible on the computer.
It unlocks on the finger or on the face
So you will have to memorize a password again? Hopefully not. The app can be replaced by biometric authentication, whether it is an iPhone or an Android smartphone. It is even possible to unlock the key with your Apple Watch!
To discover in video
And for the paranoid, the manufacturer has even provided functions such as locking after a certain period of inactivity, two-factor authentication and remote erase.
Good transfer speeds
So the security of your data is ensured, but is the key to iStorage fast? Yes, according to our measurements, because it achieves speeds of 166MB / s read and 146MB / s write for large files, for example videos. Unsurprisingly, bit rates drop for smaller files. With a size of 1MB, we measure real speeds of 110MB / s read and 71MB / s write, which is still a good score.
In the end, the datAshur BT keeps its promises by offering secure storage and easy unlocking if your smartphone has a biometric authentication system.
Finally, the key has an IP57 rating, which means that it can fall into the water without causing any problem for your data.