ensure you have the latest stable versions of all the required libraries:
- OpenSSL (http://www.openssl.org/) version 1.0.0 or later, with support for
- elliptic curve cryptography (ECC) enabeld.
+ elliptic curve cryptography (ECC) and Galois counter mode (GCM) enabled.
The following libraries are used by default, but can be disabled if necessary: