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  • The STM32F1xx should be capable of doing some forms of TLS.

    There're a number of commercial TLS products that include this chip, although they're obviously C or C++ linker libraries.

    There're also a number of Javascript projects which could be "gutted" to run on Espruino and either provide ad-hoc encryption over HTTP, or possibly even a lightweight, barebones TLS implementation (pick the most popular/least taxing cipher, for example):

    • CryptoJS
    • Forge
    • Stanford Javascript Crypto Library

    I may have a crack at this, time depending.



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