This reference section includes the OpenSSL SSL APIs,
and is based on information provided by The Open Group. This information
can also be found at the following URL:
http://www.openssl.org
The OpenSSL SSL library implements the Secure Sockets Layer
(SSL v2/v3) and Transport Layer Security (TLS v1) protocols.
This library is provided in the form of a shareable image
and is located at:
The C header files (.H) that contain the prototypes for these
APIs are found in SSL$ROOT:[INCLUDE]. A logical name, SSL$INCLUDE,
allows you to access this directory. The logical name OPENSSL, which
points to SSL$INCLUDE, is provided so that applications can use
statements similar to the following:
#include <openssl/include.filename.h>
Do not confuse the OPENSSL logical name with the OPENSSL
foreign symbol. The foreign symbol provides access to the OpenSSL
command line interface.
HP Open Source Security for OpenVMS Volume 2:... 
