Secure sockets (SSL, TLS)

The vocabulary implements secure, encrypted sockets using the OpenSSL library.

On Windows make sure you have the appropriate DLLs available, e.g. libcrypto-37.dll and libssl-38.dll.

This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (, cryptographic software written by Eric Young ( and software written by Tim Hudson (
Secure socket configuration
Secure socket contexts
Secure socket addresses
Upgrading existing connections
Secure socket errors