openssl_csr_sign
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
openssl_csr_sign - 用另一个证书（或其本身）签署 CSR 并生成证书
描述
resource openssl_csr_sign ( mixed $csr , mixed $cacert , mixed $priv_key , int $days [, array $configargs [, int $serial = 0 ]] )openssl_csr_sign（）从给定的 CSR 生成一个 x509 证书资源。
参数
csr
先前由 openssl_csr_new（）生成的 CSR。当指定为 file：// path / to / csr 或由 openssl_csr_export（）生成的导出字符串时，它也可以是 PEM 编码 CSR 的路径。
cacert
生成的证书将由签名cacert。如果cacert是NULL，则生成的证书将是自签名证书。
priv_key
priv_key是cacert对应的私钥。
days
days 指定生成的证书有效的时间长度，以天为单位。
configargs
你可以通过微调 CSR 签名configargs。有关更多信息，请参阅
openssl_csr_new（）configargs。
serial
可选的已颁发证书的序列号。如果未指定，它将默认为0。
返回值
返回FALSE失败时成功的 x509 证书资源。
例子
示例＃1 openssl_csr_sign（）示例 - 签名 CSR（如何实现您自己的 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";
}
?>← openssl_csr_new
openssl_decrypt →
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