Function esp_idf_svc::sys::mbedtls_platform_zeroize

pub unsafe extern "C" fn mbedtls_platform_zeroize(
    buf: *mut c_void,
    len: usize,
)

\brief Securely zeroize a buffer

         The function is meant to wipe the data contained in a buffer so
         that it can no longer be recovered even if the program memory
         is later compromised. Call this function on sensitive data
         stored on the stack before returning from a function, and on
         sensitive data stored on the heap before freeing the heap
         object.

         It is extremely difficult to guarantee that calls to
         mbedtls_platform_zeroize() are not removed by aggressive
         compiler optimizations in a portable way. For this reason, Mbed
         TLS provides the configuration option
         MBEDTLS_PLATFORM_ZEROIZE_ALT, which allows users to configure
         mbedtls_platform_zeroize() to use a suitable implementation for
         their platform and needs

\param buf Buffer to be zeroized \param len Length of the buffer in bytes