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@@ -197,6 +197,14 @@ Mbed TLS can be ported to many different architectures, OS's and platforms. Befo - [What external dependencies does Mbed TLS rely on?](https://tls.mbed.org/kb/development/what-external-dependencies-does-mbedtls-rely-on) - [How do I configure Mbed TLS](https://tls.mbed.org/kb/compiling-and-building/how-do-i-configure-mbedtls) +Mbed TLS is mostly written in portable C99; however, it has a few platform requirements that go beyond the standard, but are met by most modern architectures: + +- Bytes must be 8 bits. +- All-bits-zero must be a valid representation of a null pointer. +- Signed integers must be represented using two's complement. +- `int` and `size_t` must be at least 32 bits wide. +- The types `uint8_t`, `uint16_t`, `uint32_t` and their signed equivalents must be available. + PSA cryptography API -------------------- |