From the course: Learning Cryptography and Network Security
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Exploring Internet Protocol Security
From the course: Learning Cryptography and Network Security
Exploring Internet Protocol Security
- [Instructor] Internet Protocol is a best effort, connectionless protocol, which is used to connect networks by routing and addressing each packet. IP is not secure on its own. To secure IP, we use Internet Protocol Security, or IPsec, which is a framework for securing IP communications and is designed to provide security for IP version 4 or IP version 6. IPsec can both encrypt and authenticate each IP packet of a session between hosts or networks across the LAN and the internet. Here we see an illustration of the different layers and corresponding security methods in the OSI model: The application layer, transport layer and the network layer. IPsec provides security at the network layer and can protect the higher layer protocols in a much wider range of applications than Transport Layer Security and no special training is required when using IPsec. We can add IPsec to IP version 4 or IP version 6 by using additional…
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