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(PHP 7 >= 7.4.0, PHP 8)
openssl_x509_verify — 根據(jù)公鑰驗(yàn)證x509證書的數(shù)字簽名
openssl_x509_verify(OpenSSLCertificate|string $certificate, OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $public_key): int
openssl_x509_verify() 驗(yàn)證證書是否由私有 密鑰對應(yīng)于公鑰。certificatepublic_key
x509
參見密鑰/證書參數(shù)以獲取有效值列表。
public_key
OpenSSLAsymmetricKey - 一個密鑰,由 openssl_get_publickey() 返回
string - PEM 格式的密鑰(例如-----BEGIN PUBLIC KEY----- MIIBCgK...
)
如果簽名正確,則返回 1,如果簽名不正確,則返回 0,如果簽名不正確,則返回 0,并且 錯誤時為 -1。
版本 | 說明 |
---|---|
8.0.0 | certificate 現(xiàn)在接受 OpenSSLCertificate 實(shí)例; 以前,接受類型的資源。OpenSSL X.509 |
8.0.0 | public_key 現(xiàn)在接受 OpenSSLAsymmetricKey 或 OpenSSLCertificate 實(shí)例; 以前,已接受 OR 類型的資源。OpenSSL key OpenSSL X.509 |
示例 #1 openssl_x509_verify() example
<?php
$hostname = "news.php.net";
$ssloptions = array(
"capture_peer_cert" => true,
"capture_peer_cert_chain" => true,
"allow_self_signed"=> false,
"CN_match" => $hostname,
"verify_peer" => true,
"SNI_enabled" => true,
"SNI_server_name" => $hostname,
);
$ctx = stream_context_create( array("ssl" => $ssloptions) );
$result = stream_socket_client("ssl://$hostname:443", $errno, $errstr, 30, STREAM_CLIENT_CONNECT, $ctx);
$cont = stream_context_get_params($result);
$x509 = $cont["options"]["ssl"]["peer_certificate"];
$certparsed = openssl_x509_parse($x509);
foreach($cont["options"]["ssl"]["peer_certificate_chain"] as $chaincert)
{
$chainparsed = openssl_x509_parse($chaincert);
$chain_public_key = openssl_get_publickey($chaincert);
$r = openssl_x509_verify($x509, $chain_public_key);
if ($r==1)
{
echo $certparsed['subject']['CN'];
echo " was digitally signed by ";
echo $chainparsed['subject']['CN']."\n";
}
}
?>
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