In this blog post, we'll be exploring Qualcomm's TrustZone implementation, as present on Snapdragon SoCs. If you haven't already, you might want to read the previous blog post, in which I go into some detail about TrustZone in general. Where do we start? First of all, since Qualcomm's TrustZone implementation is closed-source, and as far as I could tell, there are no public documents detailing its
![Exploring Qualcomm's TrustZone implementation](https://cdn-ak-scissors.b.st-hatena.com/image/square/2d982f7a8d24aacffb720fb4f42981eab47bb64c/height=288;version=1;width=512/https%3A%2F%2Fblogger.googleusercontent.com%2Fimg%2Fb%2FR29vZ2xl%2FAVvXsEjAYf0atqQF_3VPlQEzdbfgke3FrG_8bTWkqYgq_ydQjcfRxnPo6eHbW_sTvMcdsF0PHyB4gGA4Db41GcZYFntYbvVuK5dR3XXSK1DWeDrXLeJr8vLgZE56pyVC8NP3PhqNTDXVgTTTuoyV%2Fw1200-h630-p-k-no-nu%2FScreenshot%2Bfrom%2B2015-03-28%2B15%3A31%3A15.png)