secure connection from mobile device to application server
<p>I am after a little bit of help.</p>

<p>I have a mobile application that currently runs on both iOS and Android. this application uses in house APIs to do most of the back end work. </p>

<p>I have a need to start using some legacy services that sit within the back end servers in my company. </p>

<p>I have proposed that we use a new application server that will sit in the DMZ and this will run an application that will contact the services and get me the data i need. </p>

<p>My question is how can i ensure that the connection from the Mobile device to this application server is secure? what protocol should i use? </p>

<p>thanks in advance.</p>