Raj: There are several ways this can be done depending on your particular application requirements. I suggest you refer to Chapter 6 in NIST Special Publication 800-56A, Recommendation for Pair-Wise Key Establishment Schemes. You can download it from here http://csrc.nist.gov/publications/nistpubs/800-56A/SP800-56A_Revision1_M ar08-2007.pdf
Bill ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kurapati Raja Sekhar Sent: April 24, 2008 12:02 AM To: openssl-users@openssl.org Subject: RE: Need help on How to use ECDH in openssl Hi Bill, Thanks for your reply. I am using openssl0.9.8 version only and I could able to see the ecdhtest.c and other files related to ecdh. I need to implement separate server and client programs using ecdh key exchange protocol. I have gone through code in openssl, But I think it has dependencies Could you please suggest me how can I write my own server and client programs with ecdh key agreement protocol. Thanks. Raj