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Rich-</div>
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Thanks for your reply. At this point I'm 99% sure I have ECDH with RSA working. My question in the previous post was just to confirm. But I have my RSA cert and key pair, and a client can successfully connect to my server using ECDHE_RSA* ciphers. </div>
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My questions are more related to ECDSA. For example, you said "just load your ECDSA cert", which is easy enough. My question is, is that all I need? For example, with DSA (which we don't really use anymore), I also needed a DH parameters file, which I read
in with PEM_read_DHparams(). Do I need to do something similar with "EC params" or "ECDSA params"? I've seen references to both, and I'm not sure if and when I need them.</div>
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As I pointed out, it looks like there are "EC PARAMETERS" in my private key file. Are these needed? If so, how and when do I use them? Or do I need them in a separate file?</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Salz, Rich <rsalz@akamai.com><br>
<b>Sent:</b> Tuesday, February 11, 2020 4:37 PM<br>
<b>To:</b> Jason Schultz <jetson23@hotmail.com>; openssl-users@openssl.org <openssl-users@openssl.org><br>
<b>Subject:</b> Re: Questions about using Elliptic Curve ciphers in OpenSSL</font>
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The first thing I would suggest is to separate ECDH, the session key exchange, from ECDSA, the signature. Try to make ECDH with RSA work. Then just load your ECDSA cert; you can load one cert of each type (RSA DSA) and the runtime will figure out what to
do, depending on what the client offers.</p>
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