Does anyone know some good online calculator or tool that can do a ECDH key agreement cross-check? I want to using the same test vector to do cross-check test with my code.
I find this on-line tool is good, but it only supports some of ECC curve... I would need support secp256k1 curve as well., which I can not find good tool yet. http://www-cs-students.stanford.edu/~tjw/jsbn/ecdh.html