I am Dave Jing Tian, an Assistant Professor in the Department of Computer Science at Purdue University working on system security. My research involves embedded systems, operating systems, and trusted computing. All opinions are my own.
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Tag Archives: DH
Finally, I’ve got time to summaries the authentication work I’ve done for MGC:) This post gives a useful C lib on authentication focusing on DH key exchange algorithm and MD5 digest helper APIs. Please note this lib should be built/used … Continue reading
In my last post on D-H algorithm (http://daveti.blog.com/2011/04/21/diffiehellman-key-exchange-dh-algorithm-in-c/), we talked about 2 implementation using C. However, I’ve been thinking about one thing here these days – if there is any potential integer overflow risk in both functions (though for unsigned … Continue reading
I am recently doing feature on authentication between MGC (Media Gateway Controller) and MG (Media Gateway). One important thing involved in Diffie-Hellman key exchange. Not sure if because the key formula ‘g^a mod(P)’ looks simple and stupid, it is hard … Continue reading