Re: Authentication

From: Thomas Wu (tjw_at_xenon.Stanford.EDU)
Date: 01/19/05 

Date: 18 Jan 2005 20:47:03 -0800

K-Stern@neiu.edu writes:

> I have modified what the original poster came up with and I believe
> that I have increased the security.
>
> Per DH:
>
> A and B agree upon a large prime n and a primitive root within the
> field Z_n, g.
>
> A generates a random number, a, < n and calculates A_public = g^a (mod
> n)
>
> B generates a random number, b, < n and calculates B_public = g^b (mod
> n)
>
> A uses the password to encrypt A_public and sends this to B.
>
> B uses the password to encrypt B_public and sends this to A.

Isn't this exactly the DH flavor of EKE?

Tom 

-- 
Tom Wu
http://www-cs-students.stanford.edu/~tjw/

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