IPsec – Security Architecture for IP

IPsec is an extension of the Internet Protocol (IP) to include encryption and authentication mechanisms. This gives the Internet protocol the ability to cryptographically secure transport of IP packets over public and unsecure networks. IPsec was developed by the Internet Engineering Task Force (IETF) as an integral part of IPv6. Because the Internet protocol of version 4 originally had no security mechanisms, IPsec was subsequently specified for IPv4. Continue reading