Secure HTTP (S-HTTP)
S-HTTP uses a different technology for SSL. After establishing the connection, the messages between the client and server are involved in a safe. this
provides the confidentiality, integrity and authentication. However, this technology is used more predominantly between clients and web servers.
Virtual Private Network (VPN)
VPNs are widely used in organizations to secure data transfers. They create secure data transfers by establishing secure tunnels through a public network (eg Internet). Organizations choose VPN, mainly due to its relatively low cost. ACME Widgets can build a VPN between headquarters and field sales offices. A carefully configured VPN can provide a very high level of confidentiality and sender authentication message integrity. VPNs typically use Layer 2 Tunneling Protocol (L2TP) for packet encapsulation.
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