How does the IKEv2 protocol work?

by | Oct 21, 2019 | CCNP, CompTIA, Data Breaches and Prevention, Data Security, Encryption, End Point Protection, Exclusive Articles, Network Security, VPN

IKEv2 Protocol

What is the Internet Key Exchange Protocol (IKE)?

IKE or Internet Key Exchange protocol is a protocol that performs mutual authentication and sets up or maintains Security Associations (SAs) in the IPSec protocol. It uses the Diffie-Hellman Key Exchange protocol to derive a session secret from which cryptographic keys are derived.

IKEv2 is an improvement of IKEv1. IKEv2 supports SCTP protocol and NAT traversal. It is also resilient to certain DoS attacks. In this article, we would discuss how IKEv2 works in detail. But, before we discuss that, let’s discuss in brief how IPSec protocol works and how IKEv2 is used in IPSec.

This article is accessible to premium members only. To access this article, please purchase The Security Buddy Premium Membership Plan.

Pages: 1 2 3 4 5 6
Facebooktwitterredditpinterestlinkedinmail

Related posts:

ISAKMP ProtocolThe Difference Between IKE and ISAKMP Protocol IPSecWhat is the IPSec protocol and how does it work? Diffie-Hellman Key ExchangeWhat is the Logjam attack? SFTP ProtocolHow does the SFTP protocol work? Perfect Forward SecrecyWhat is Perfect Forward Secrecy? GRE ProtocolWhat is the GRE protocol and how does it work? mGRE TunnelWhat is Next Hop Resolution protocol (NHRP) and how does it work? Implementing the Diffie-Hellman Key Exchange Algorithm using PythonHow to implement the Diffie-Hellman Key Exchange algorithm using Python? Diffie-Hellman Key ExchangeWhat is the Diffie-Hellman Key Exchange Protocol and how does it work? Kerberos ProtocolHow does the Kerberos protocol work? TACACS+What is TACACS+ protocol and how does it work? DHCP ProtocolWhat is DHCP Starvation attack and how does it work? Elliptic Curve CryptographyWhat is Elliptic Curve Cryptography and how does it work ? RADIUS ProtocolWhat is RADIUS protocol and how does it work? Near Field Communication (NFC) And SecurityNear Field Communication (NFC) And Security Diffie-Hellman Key Exchange using the pyDHE Python LibraryDiffie-Hellman Key Exchange Protocol using the pyDHE Python Library

Calculate the pseudoinverse of a matrix using Python

by | October 3, 2023 | Featured, Linear Algebra | 0 Comments

What is the pseudoinverse of a matrix? We know that if A is a square matrix with full rank, then A-1 is said to be the inverse of A if the following condition holds: $latex AA^{-1}=A^{-1}A=I $ The pseudoinverse or the Moore-Penrose inverse of a matrix is a...
Read More

Cholesky decomposition using Python

by | October 3, 2023 | Featured, Linear Algebra | 0 Comments

What is Cholesky decomposition? A square matrix A is said to have Cholesky decomposition if it can be written as a product of a lower triangular matrix and its conjugate transpose. $latex A=LL^{*} $ If all the entries of A are real numbers, then the conjugate...
Read More

Tensor Hadamard Product using Python

by | October 3, 2023 | Featured, Linear Algebra | 0 Comments

In one of our previous articles, we already discussed what the Hadamard product in linear algebra is. We discussed that if A and B are two matrices of size mxn, then the Hadamard product of A and B is another mxn matrix C such that: $latex H_{i,j}=A_{i,j} \times...
Read More

Perform tensor addition and subtraction using Python

by | October 3, 2023 | Featured, Linear Algebra | 0 Comments

We can use numpy nd-array to create a tensor in Python. We can use the following Python code to perform tensor addition and subtraction. import numpy A = numpy.random.randint(low=1, high=10, size=(3, 3, 3)) B = numpy.random.randint(low=1, high=10, size=(3, 3, 3)) C =...
Read More

How to create a tensor using Python?

by | October 3, 2023 | Featured, Linear Algebra | 0 Comments

What is a tensor? A tensor is a generalization of vectors and matrices. It is easily understood as a multidimensional array. For example, in machine learning, we can organize data in an m-way array and refer it as a data tensor. Data related to images, sounds, movies,...
Read More

How to combine NumPy arrays using horizontal stack?

by | October 3, 2023 | Featured, Linear Algebra | 0 Comments

We can use the hstack() function from the numpy module to combine two or more NumPy arrays horizontally. For example, we can use the following Python code to combine three NumPy arrays horizontally. import numpy A = numpy.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]) B =...
Read More

How to combine NumPy arrays using vertical stack?

by | October 3, 2023 | Featured, Linear Algebra | 0 Comments

Let’s say we have two or more NumPy arrays. We can combine these NumPy arrays vertically using the vstack() function from the numpy module. For example, we can use the following Python code to combine three NumPy arrays vertically. import numpy A = numpy.array([[1, 2,...
Read More

Singular Value Decomposition (SVD) using Python

by | October 3, 2023 | Featured, Linear Algebra | 0 Comments

What is Singular Value Decomposition (SVD)? Let A be an mxn rectangular matrix. Using Singular Value Decomposition (SVD), we can decompose the matrix A in the following way: $latex A_{m \times n}=U_{m \times m}S_{m \times n}V_{n \times n}^T $ Here, U is an mxm matrix....
Read More

Eigen decomposition of a square matrix using Python

by | October 3, 2023 | Featured, Linear Algebra | 0 Comments

Let A be a square matrix. Let’s say A has k eigenvalues λ1, λ2, ... λk. And the corresponding eigenvectors are X1, X2, ... Xk. $latex X_1=\begin{bmatrix} x_{11} \\ x_{21} \\ x_{31} \\ ... \\ x_{k1} \end{bmatrix} \\ X_2=\begin{bmatrix} x_{12} \\ x_{22} \\ x_{32} \\ ......
Read More

How to calculate eigenvalues and eigenvectors using Python?

by | October 3, 2023 | Featured, Linear Algebra | 0 Comments

In our previous article, we discussed what eigen values and eigenvectors of a square matrix are and how we can calculate the eigenvalues and eigenvectors of a square matrix mathematically. We discussed that if A is a square matrix, then $latex (A- \lambda I) \vec{u}=0...
Read More

Amrita Mitra

Author

Ms. Amrita Mitra is an author, who has authored the books “Cryptography And Public Key Infrastructure“, “Web Application Vulnerabilities And Prevention“, “A Guide To Cyber Security” and “Phishing: Detection, Analysis And Prevention“. She is also the founder of Asigosec Technologies, the company that owns The Security Buddy.

0 Comments

Submit a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Not a premium member yet?

Please follow the link below to buy The Security Buddy Premium Membership.

Buy Premium Membership

Featured Posts

Translate »