[openssl-users] ecc negotiation

[David Rufino]

Hello,

It's possible I'm doing something wrong here, but I can't seem to negotiate
ecdhe with an elliptic curve other than P-256. To reproduce the issue,
using openssl 1.0.2

openssl s_server  -key server.key -cert server.crt -msg -debug -dhparam
dhparam.pem  -cipher ECDHE-RSA-AES128-SHA -tls1_2

gnutls-cli 127.0.0.1 -p 4433 -d 4 --insecure --priority="NORMAL:-KX-ALL:+
ECDHE-RSA:-CURVE-ALL:+CURVE-SECP224R1"

which gives the error

:SSL routines:ssl3_get_client_hello:no shared cipher:s3_srvr.c:1366:

changing to p256r1 succeeds. is there a particular why the negotation would
fail with p224 ? my understanding is that openssl supports all the nist
curves.

Regards,
David
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