As previously stated here, wolfSSL is getting ported to the mbed chip. We’ve done the initial build and the results were pretty good. wolfSSL takes 2.9 kB of RAM (10% of total) and 63 kB of Flash (13%). That includes the test driver code which is about 3 kB. More information to follow! If you’re interested in building wolfSSL for mbed (http://mbed.org/), let us know and we’ll be happy to support you.