The OpenSSL Project is a collaborative effort to develop a robust,
commercial-grade, full-featured, and Open Source toolkit implementing
the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS
v1) protocols with full-strength cryptography world-wide. The project
is managed by a worldwide community of volunteers that use the Internet
to communicate, plan, and develop the OpenSSL toolkit and its related
documentation.

Derivation and License

OpenSSL is based on the excellent SSLeay library developed from Eric A.
Young and Tim J. Hudson. The OpenSSL toolkit is licensed under a
Apache-style licence which basically means that you are free to get and
use it for commercial and non-commercial purposes.