# OpenSSL Integration with eXtremeDB High Availability

> To facilitate secure communications, authorization and authentication, eXtremeDB High Availability Transport Layer security is implemented using `Secure Sockets Layer` (TLS/SSL). `OpenSSL` was chosen as one of the most widespread and well-recognized `TLS` protocol implementations.

> In order to use `OpenSSL` networking in an application, the user system is required to have a local `OpenSSL` installation. The `OpenSSL` headers and the libraries must be available to the compiler.

> Please refer to the Network Communications page for details on implementing OpenSSL security.