(PHP 5 >= 5.6.0, PHP 7)
openssl_spki_new — ����һ���µ�ǩ����Կ����ս
&$privkey
, string &$challenge
[, int $algorithm = 0
] ) : stringʹ��ָ���Ĺ�ϣ�㷨����һ���µ�ǩ����Կ����ս��
privkey
privkey Ӧ�ñ�����Ϊ��openssl_pkey_new()����Ԥ������(������������ʽ��openssl_pkey�������л��)��˽Կ������Կ����Ӧ�������ֽ�����ǩ��CSR.
challenge��SPKAC�йص���ս��
algorithmժҪ�㷨���μ� openssl_get_md_method()������
�ɹ�������һ��ǩ���Ĺ�Կ����ս��ʧ�ܷ��� NULL .
��� algorithm ������һ��δ֪��ǩ���㷨�������׳�һ�� E_WARNING ���Ĵ���
Example #1 openssl_spki_new() ������
ʹ��Ĭ�ϵ�ժҪ�㷨(MD5)����һ���µ�SPKAC
<?php
$pkey = openssl_pkey_new('secret password');
$spkac = openssl_spki_new($pkey, 'testing');
if ($spkac !== NULL) {
echo $spkac;
} else {
echo "SPKAC generation failed";
}
?>
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