ny of its duplicates.</p>

<p>EVP_PKEY_CTX_new_id() and EVP_PKEY_CTX_new_from_name() are normally used when no <b>EVP_PKEY</b> structure is associated with the operations, for example during parameter generation or key generation for some algorithms.</p>

<p>EVP_PKEY_CTX_dup() duplicates the context <i>ctx</i>. It is not supported for a keygen operation.</p>

<p>EVP_PKEY_CTX_free() frees up the context <i>ctx</i>. If <i>ctx</i> is NULL, nothing is done.</p>

<p>EVP_PKEY_is_a() checks if the key type associa