NAME

       SSL_CTX_set_tmp_ecdh, SSL_set_tmp_ecdh, SSL_CTX_set_ecdh_auto, SSL_set_ecdh_auto - handle
       ECDH keys for ephemeral key exchange

SYNOPSIS

        #include <openssl/ssl.h>

        long SSL_CTX_set_tmp_ecdh(SSL_CTX *ctx, const EC_KEY *ecdh);
        long SSL_set_tmp_ecdh(SSL *ssl, const EC_KEY *ecdh);

        long SSL_CTX_set_ecdh_auto(SSL_CTX *ctx, int state);
        long SSL_set_ecdh_auto(SSL *ssl, int state);

DESCRIPTION

       SSL_CTX_set_tmp_ecdh() sets ECDH parameters to be used to be ecdh.  The key is inherited
       by all ssl objects created from ctx.  This macro is deprecated in favor of
       SSL_CTX_set1_groups(3).

       SSL_set_tmp_ecdh() sets the parameters only for ssl.  This macro is deprecated in favor of
       SSL_set1_groups(3).

       SSL_CTX_set_ecdh_auto() and SSL_set_ecdh_auto() are deprecated and have no effect.

RETURN VALUES

       SSL_CTX_set_tmp_ecdh() and SSL_set_tmp_ecdh() return 1 on success and 0 on failure.

SEE ALSO

       ssl(7), SSL_CTX_set1_curves(3), SSL_CTX_set_cipher_list(3), SSL_CTX_set_options(3),
       SSL_CTX_set_tmp_dh_callback(3), openssl-ciphers(1), openssl-ecparam(1)

COPYRIGHT

       Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the Apache License 2.0 (the "License").  You may not use this file except
       in compliance with the License.  You can obtain a copy in the file LICENSE in the source
       distribution or at <https://www.openssl.org/source/license.html>.