OpenSSL Toolkit 1.1.1a – OpenSSL is a robust, fully featured Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols with full-strength cryptography world-wide.

OpenSSL is a robust, fully featured Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols with full-strength cryptography world-wide.

You can download it from the following link: https://packetstormsecurity.com/files/download/150421/openssl-1.1.1a.tar.gz

Source: https://packetstormsecurity.com/files/150421/OpenSSL-Toolkit-1.1.1a.html