 a count of the number of public key ASN.1 methods available: it includes standard methods and any methods added by the application.</p>

<p>EVP_PKEY_asn1_get0() returns the public key ASN.1 method <b>idx</b>. The value of <b>idx</b> must be between zero and EVP_PKEY_asn1_get_count() - 1.</p>

<p>EVP_PKEY_asn1_find() looks up the <b>EVP_PKEY_ASN1_METHOD</b> with NID <b>type</b>. If <b>pe</b> isn&#39;t <b>NULL</b>, then it will look up an engine implementing a <b>EVP_PKEY_ASN1_METHOD</b> for the NID <b>type<