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32 lines
858 B

diff --git a/sendmail/tls.c b/sendmail/tls.c
index 60d408e..72da987 100644
--- a/sendmail/tls.c
+++ b/sendmail/tls.c
@@ -970,6 +970,9 @@ inittls(ctx, req, options, srv, certfile, keyfile, cacertpath, cacertfile, dhpar
/* Diffie-Hellman initialization */
if (bitset(TLS_I_TRY_DH, req))
{
+#if _FFR_TLS_EC
+ EC_KEY *ecdh;
+#endif /* _FFR_TLS_EC */
if (bitset(TLS_S_DHPAR_OK, status))
{
BIO *bio;
@@ -1044,6 +1047,17 @@ inittls(ctx, req, options, srv, certfile, keyfile, cacertpath, cacertfile, dhpar
who, 8 * DH_size(dh), *dhparam);
DH_free(dh);
}
+
+#if _FFR_TLS_EC
+ ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
+ if (ecdh != NULL)
+ {
+ SSL_CTX_set_options(*ctx, SSL_OP_SINGLE_ECDH_USE);
+ SSL_CTX_set_tmp_ecdh(*ctx, ecdh);
+ EC_KEY_free(ecdh);
+ }
+#endif /* _FFR_TLS_EC */
+
}
# endif /* !NO_DH */