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DH_new_by_nid(3)                    OpenSSL                   DH_new_by_nid(3)

       DH_new_by_nid, DH_get_nid - get or find DH named parameters

       libcrypto, -lcrypto

        #include <openssl/dh.h>
        DH *DH_new_by_nid(int nid);
        int *DH_get_nid(const DH *dh);

       DH_new_by_nid() creates and returns a DH structure containing named
       parameters nid. Currently nid must be NID_ffdhe2048, NID_ffdhe3072,
       NID_ffdhe4096, NID_ffdhe6144 or NID_ffdhe8192.

       DH_get_nid() determines if the parameters contained in dh match any
       named set. It returns the NID corresponding to the matching parameters
       or NID_undef if there is no match.

       DH_new_by_nid() returns a set of DH parameters or NULL if an error

       DH_get_nid() returns the NID of the matching set of parameters or
       NID_undef if there is no match.

       Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the OpenSSL license (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

1.1.1                             2018-09-17                  DH_new_by_nid(3)