Browse free open source Cryptography software and projects below. Use the toggles on the left to filter open source Cryptography software by OS, license, language, programming language, and project status.

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  • 1
    Poptop is an open source implementation of a PPTP server. Running under x86 or embedded Motorola ColdFire architectures Poptop provides full interoperability with the Microsoft PPTP VPN client.
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    Downloads: 579 This Week
    Last Update:
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  • 2

    Rockhopper VPN software

    IPsec / IKEv2-based VPN software for Linux.

    Rockhopper is IPsec/IKEv2-based VPN software for Linux. This software is interoperable with Windows 7, Windows 8 and Windows 10 VPN clients and it provides a handy AJAX-based Web console to manage Secure Virtual Ethernet(LAN), Routing-based VPN, Remote Access VPN and servers protected by IPsec. No kernel modules are needed. The ESP protocol stack is also implemented in user space.
    Downloads: 1 This Week
    Last Update:
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  • 3
    Ncurses based tool for easily deploying IPsec tunnels using FreeSWAN (Linux only) Easy to configure a tunnel, simple options, user friendly interface
    Downloads: 1 This Week
    Last Update:
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  • 4
    This contains a sample implementation of DTLS-VPN using OpenSSL DTLSv1 Support - to send data over an encrypted channel.
    Downloads: 0 This Week
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  • 5
    OpenVPN

    OpenVPN

    Robust and flexible VPN network tunnelling

    OpenVPN is a robust and highly flexible tunneling application that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single TCP/UDP port. Discussion forums and project wiki can be found here: https://forums.openvpn.net/ http://community.openvpn.net/openvpn
    Downloads: 0 This Week
    Last Update:
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  • 6
    The SLAN project is a GPL open-source project providing a cross platform Virtual Private Networking (VPN) solution focused on providing secured and accountable links over insecure broadcast media such as 802.11 wireless LANs and public ethernets.
    Downloads: 0 This Week
    Last Update:
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  • 7
    SSL-Explorer is a fully-featured, web-based SSL VPN server. This project is no longer actively maintained as the SSL-Explorer technology has now been acquired by Barracuda Networks, Inc.
    Downloads: 0 This Week
    Last Update:
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  • 8
    This application providet simple VPN functionality
    Downloads: 0 This Week
    Last Update:
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  • 9
    pam-openvpn is a Linux PAM-module which works together with OpenVPN. With this pam-module it is possible to establish vpn connections when a user logs into a system and tear down the connection when the user logs off. This is ideal for mobile systems.
    Downloads: 0 This Week
    Last Update:
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  • 10
    Yavipind is a secure tunnel aka 2 peers securely forward­ing packets toward each other.It is what most people calls a VPN (virtual private network). It forwards any kind ofpacket (IPv4, IPv6 or other) sent over the virtual network interface (e.g. t
    Downloads: 0 This Week
    Last Update:
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