PHP8 openssl_x509_verify
(PHP 7 >= 7.4.0, PHP 8)
openssl_x509_verify — 根据公钥验证x509证书的数字签名
说明
openssl_x509_verify(OpenSSLCertificate|string $certificate, OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $public_key): int
openssl_x509_verify() 验证证书是否由私有 密钥对应于公钥。certificatepublic_key
参数
x509
参见密钥/证书参数以获取有效值列表。
public_key
OpenSSLAsymmetricKey - 一个密钥,由 openssl_get_publickey() 返回
string - PEM 格式的密钥(例如
-----BEGIN PUBLIC KEY----- MIIBCgK...
)
返回值
如果签名正确,则返回 1,如果签名不正确,则返回 0,如果签名不正确,则返回 0,并且 错误时为 -1。
更新日志
版本 | 说明 |
---|---|
8.0.0 | certificate 现在接受 OpenSSLCertificate 实例; 以前,接受类型的资源。OpenSSL X.509 |
8.0.0 | public_key 现在接受 OpenSSLAsymmetricKey 或 OpenSSLCertificate 实例; 以前,已接受 OR 类型的资源。OpenSSL key OpenSSL X.509 |
示例
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";
}
}
?>
参见
- openssl_verify() - 验证签名
- openssl_get_publickey() - 别名 openssl_pkey_get_public