![]() The security association includes all attributes which are required for a connection, including the cryptographic algorithm, the IPsec mode, the encryption key, and any other parameters which are related to data transmission which are required to establish a secure connection. ![]() Each security association defines a connection in one direction, from one host to another. In other words, we can say that this protocol defines the security parameters for how two systems can communicate with each other. It is a framework that is majorly used for key establishment, authentication, and negotiation of a security association for a secure exchange of packets over an Internet Protocol layer. Internet Security Association and Key Management Protocol (ISAKMP): Internet Security Association and Key Management Protocol are simply specified as one of the parts of IKE protocol. The security of the tunnel is based on the Diffie-Hellman key exchange method, which is one of the widely used techniques used for security.Ĥ. This protocol achieves this using a series of key exchanges to create a secure and strong tunnel between a client and a server with the help of which they can send encrypted traffic easily and securely. Internet Key Exchange (IKE): Internet Key Exchange is a special protocol that helps to enable two systems or devices to establish a secure and strong communication channel over a nonreliable network also. Authentication for the payload is one of its important features of it.ģ. It also helps to provide data integrity, encryption, and authentication. Internet Protocol Encapsulating Security Payload (IP ESP): Internet Protocol Encapsulating Security Payload was majorly specified in RFC 4303, ESP provides fabulous features like authentication, integrity, and confidentiality with the help of encryption of IP packets. One more disadvantage is that it does not protect the confidentiality of data at all.Ģ. The anti-replay protection protects against unauthorized transmission of packets. It also provides the feature of data integrity, authentication, and anti-replay and one of its drawbacks are that it does not provide encryption. The authentication Header was designed for the purpose of adding authentication data. Internet Protocol Authentication Header (IP AH): Internet Protocol Authentication Header basically includes functionalities like data integrity and transport protection services. There are majorly four protocols behind IPsec which are as follows:ġ. Difference between Synchronous and Asynchronous TransmissionĪrchitecture of IPsec Protocols behind IPsec:.nslookup command in Linux with Examples.How to Check Incognito History and Delete it in Google Chrome?.Implementation of Diffie-Hellman Algorithm.Transmission Modes in Computer Networks (Simplex, Half-Duplex and Full-Duplex).Types of area networks - LAN, MAN and WAN.Network Devices (Hub, Repeater, Bridge, Switch, Router, Gateways and Brouter).ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.
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