Google has been working on the encryption method for quite some time now. This encryption method is specially designed for entry-level smartphones and will be called Adiantum. To make sure that all the devices are in the encrypted form, Adiantum will make storage encryption much more efficient for all the devices without any kind of cryptographic acceleration.
The Google Safety and Security blog said:
“Adiantum is a new form of encryption that we build specifically to run on phones and smart devices that don’t have the specialized hardware to use the current method to encrypt locally stored data efficiently. Adiantum is designed to run efficiently without that specialized hardware. This will make the next generation of devices more secure than their predecessors and allow the next billion people coming online for the first time to do so safely. Adiantum will help secure our connected world by allowing everything from a smartwatch to Internet-connected medical devices to encrypt sensitive data.”
There was another post on low budget mobile phones which run on the Android operating system which says “Today, Android offers storage encryption using the Advanced Encryption Standard (AES). Most new Android devices have hardware support for AES via the ARMv* Cryptography Extensions. However, Android runs on a wide range of devices. This includes not just the latest flagship and mid-range phones, but also entry-level Android Go phones sold primarily in developing countries, along with smartwatches and TVs.”
“In order to offer low-cost options, device manufacturers sometimes use low-end processors such as the ARM Cortex A7, which does not have hardware support for AES. On these devices, AES is so slow that it would result in poor user experience; apps would take much longer to launch, and the device would generally feel much slower. So while storage encryption has been required for most devices since Android 6.0 in 2015 devices with poor AES performance (50 MiB per second and below) are exempt. We’ve been working to change this because we believe that encryption is for everyone.”
Android devices are something that people all across the world buy and the problem always remains when they end up buying a cheap phone. The mobile manufacturers always end up compromising on the processor while manufacturing a cheap entry-level smartphone.