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Google made the headlines with its new Adiantum encryption method, and i read (TechCrunch) that:

In the meantime don’t expect any instant gains, but future low-power devices may offer better security without having to use more expensive components — you won’t have to do a thing, either.

So mobile phone which does not have any hardware dedicated to crypto will still be able to encryption as perhaps an equal speed.

My question: can we use this technology in some other places which does not have such hardware? does it makes sense? (e.g in a web browser, having an implementation in WASM of Adiantum).

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Keep in mind that Adiantum was designed for one particular use case: block-based disk encryption.

In other contexts, especially in a web browser context, storing an IV and an authentication tag along with the ciphertext is not a problem. So you can stick to traditional AEADs, that will be faster than Adiantum in addition to being easier to use securely.

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  • $\begingroup$ Thank you this is exactly what i wanted to read, it's hard for a beginner to get my bearings $\endgroup$
    – Cinn
    Feb 8, 2019 at 20:29

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