• Loading
    • DIFFIE HELLMAN KEY EXCHANGE ALGORITHM

      DIFFIE HELLMAN KEY EXCHANGE ALGORITHM



      Diffie Hellman key exchange algorithm uses asymmetric key principles for the distribution of symmetric keys to both parties in a communication network. Key distribution is an important aspect of conventional algorithm and the entire safety is dependent on the distribution of key using secured channel. Diffie Hellman utilizes the public& private key of asymmetric key cryptography to exchange the secret key.

      Before going in depth of Diffie Hellman Algorithm,we define primitive root of a prime number 'p' as one whose powers generate all the integers from 1 to p-1, i.e. if 'a' is the primitive root of a prime no 'p', then,
      a mod p , a2 mod p , a 3 mod p, .............. ap-1 mod p generate all distinct integers from 1 to (p-1) in some permutation.

      The steps for Diffie Hellman key exchange algorithm are:

      Step 1 : GLOBAL PUBLIC ELEMENTS
      Select any prime no : 'q'
      Calculate the primitive root of q : 'a' such that a<q

      Step 2 : ASYMMETRIC KEY GENERATION BY USER 'A'
      Select a random number as the private key XA where XA < q
      Calculate the public key YA where YA = aXA mod q

      Step 3 : KEY GENERATION BY USER 'B'
      Select a random number as the private key XB where XB < q
      Calculate the public key YB where YB = aXB mod q

      Step 4 : Exchange the values of public key between A & B


      Step 5 : SYMMETRIC KEY (K) GENERATION BY USER 'A'
      K= YB XA mod q

      Step 6 : SYMMETRIC KEY (K) GENERATION BY USER 'B'
      K= YA XB mod q

      It can be easily be proved that the key K generated by this algorithm by both parties are the same.
      Comments 1 Comment
      1. souravmusib's Avatar
        souravmusib -
        it's right.......>>>>>
    • Enter your email address:

      Delivered by FeedBurner

    • Categories

    • Latest Posts

      Divelefosse

      Ideas That Will Make You Look Like A Star

      While the definition of beauty varies according to the person, there are ways to improve your appearance. The products that you use can have an impact. Beauty is all about the whole you, inside and...

      Divelefosse Today, 04:25 AM Go to last post
      Divelefosse

      Beauty Advice You Can Start Using Today!

      You have probably passed the beauty section at your favorite store many times. Most people are unaware that the sales associates will do your makeup for you per request. This article will give you...

      Divelefosse Today, 01:25 AM Go to last post
      Divelefosse

      Quick Tips To Some Helpful Beauty Basics!

      If you look good, you tend to feel good, as well. Feeling confident about your looks builds self-esteem. When you can show others that you are happy with who you are, they will hold you in high...

      Divelefosse Today, 12:40 AM Go to last post
      Divelefosse

      Ways You Can Effectively Get The Most Out Of A Diet

      Beauty regimens are either a ton of fun or lots of headaches. The following tips will give you the basic knowledge you need to select the strategies and products you need to look your best.

      Before...

      Divelefosse Yesterday, 10:15 PM Go to last post
      Divelefosse

      Tips On How To Stay Beautiful As You Age

      Most people think that beauty if something you either have or don't have. However, this is not true. This article can help you discover what is beautiful and bring it forth. Beauty is more that just...

      Divelefosse Yesterday, 08:17 PM Go to last post



    Disclaimer: Users of techforum4u.com are responsible for ensuring that any material they post (article, blog posts, images or other mulitimedia content) does not violate or infringe upon the copyright, patent, trademark, or any personal or proprietary rights of any third party, and is posted with the permission of the owner of such rights.Anyone who violates these rules may have their access privileges removed without warning.