openssl_csr_sign
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
openssl_csr_sign — 用另一个证书签署 CSR (或者本身) 并且生成一个证书
说明
openssl_csr_sign (
mixed
$csr ,
mixed $cacert ,
mixed $priv_key ,
int $days [,
array $configargs [,
int $serial = 0 ]] ) :
resource
openssl_csr_sign() 从给定的 CSR 生成一个x509证书资源
Note: 必须安装有效的 openssl.cnf 以保证此函数正确运行。参考有关安装的说明以获得更多信息。
参数
-
csr -
由openssl_csr_new()函数生成的CSR. 也可以是由类似file://path/to/csr格式指定的指向PEM编码的CSR路径，或者是一个由openssl_csr_export()函数生成的字符串。
-
cacert -
生成的证书将由
cacert签名。 如果cacert为NULL, 生成的证书将是自签名证书。 -
priv_key -
priv_key是cacert证书对应的私钥。 -
days -
days指定生成的证书在几天内有效的时间长度。 -
configargs -
你可以通过
configargs确定CSR签名。 查看openssl_csr_new() 方法获取configargs的更多相关信息。 -
serial -
可选的发行证书编号。如果没有指定默认值为0.
返回值
成功，返回一个 x509 证书资源，失败则返回 FALSE .
范例
Example #1 openssl_csr_sign() example - signing a CSR (how to implement your own CA)
<?php
// Let's assume that this script is set to receive a CSR that has
// been pasted into a textarea from another page
$csrdata = $_POST["CSR"];
// We will sign the request using our own "certificate authority"
// certificate. You can use any certificate to sign another, but
// the process is worthless unless the signing certificate is trusted
// by the software/users that will deal with the newly signed certificate
// We need our CA cert and its private key
$cacert = "file://path/to/ca.crt";
$privkey = array("file://path/to/ca.key", "your_ca_key_passphrase");
$usercert = openssl_csr_sign($csrdata, $cacert, $privkey, 365, array('digest_alg'=>'sha256') );
// Now display the generated certificate so that the user can
// copy and paste it into their local configuration (such as a file
// to hold the certificate for their SSL server)
openssl_x509_export($usercert, $certout);
echo $certout;
// Show any errors that occurred here
while (($e = openssl_error_string()) !== false) {
echo $e . "\n";
}
?>
