[mbedtls] Add AES part of the library.

[csaboka21]

Describe the enhancement you're suggesting.

Hi,

I would like to ask to add AES implementation of the mbedtls library.
I would use it in my own app.

Anything else?

No response

[GMMan]

There are built-in AES functions within furi HAL (see furi_hal_crypto.h), see if those match your needs first. If they don't, you will need to ship your own copy of mbedtls. The built-in mbedtls functions are not exported to the application API.

[bettse]

mbedtls_des_crypt_cbc is included in the API (via fap_libs=["mbedtls"],), I don't see why the AES variants couldn't be made available as well. I would find them useful. There is furi_hal_crypto_decrypt, but that appears to only support AES256, not AES128. I'd be more than happy to be mistaken though.

[GMMan]

The hardware definitely supports AES128, so maybe it's a small change to enable that in FuriHal. I think hardware AES peripheral use should be encouraged. Having to link mbedtls also bloats the app executable size.

[bettse]

Sure, I don't care how, I'd just like AES128. If they can do it in hardware, that's great, otherwise, mbedtls, and the bloat it adds to my app, would be something I'd accept.

[skotopes]

@portasynthinca3 couple things here:

• update mbedtls to latest version
• update mbedtls build configuration
• optional: talk with @hedger about impact on firmware

[portasynthinca3]

Implemented in #4092

[bettse]

Thank you!