PolarSSL is now part of ARM Official announcement and rebranded as mbed TLS.

How to get mbed TLS

Open source!

mbed TLS is primarily available under the Apache 2.0 open source license. Additional options are available if you have different needs.

mbed TLS offers you two simple ways to get your hands on this unique product: as Open Source and as part of an mbed Partnership.


Open Source / Apache 2.0

All the current versions of the mbed TLS library are distributed under the Apache 2.0 license and available from our Download area. In addition there are packaged versions of the mbed TLS library that are distributed with the GNU Public License Version 2.0 (GPL v2.0).

The Apache-licensed and GPL-licensed versions of mbed TLS are identical in source code (with the exception of the license headers at the top of files).

We plan to keep both licensed versions around.


mbed Partnership

For information about an mbed Partnership, please contact: partnership@mbed.org