 APIs.</p>

<p>EVP_PKEY_meth_count() returns a count of the number of public key methods available: it includes standard methods and any methods added by the application.</p>

<p>EVP_PKEY_meth_get0() returns the public key method <b>idx</b>. The value of <b>idx</b> must be between zero and EVP_PKEY_meth_get_count() - 1.</p>

<p>EVP_PKEY_meth_get0_info() returns the public key ID (a NID) and any flags associated with the public key method <b>*meth</b>.</p>

<h1 id="RETURN-VALUES">RETURN VALUES</h1>

<p>EVP_P