Select named Diffie‐Hellman parameters (RFC 7919 / RFC 3526) by NID.

Synopsis

Declared in <openssl/dh.h>

int
EVP_PKEY_CTX_set_dh_nid(
    EVP_PKEY_CTX* ctx,
    int nid);

Description

Mutually exclusive with EVP_PKEY_CTX_set_dh_rfc5114() / set_dhx_rfc5114().

Return Value

1 on success, or a non‐positive value on error.

Parameters

Name

Description

ctx

EVP_PKEY_CTX used for DH parameter or key generation.

nid

Named group such as NID_ffdhe2048 or NID_modp_2048, or NID_undef to clear.

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