openssl_csr_sign
(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
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
OpenSSLCertificateSigningRequest|string
$csr,OpenSSLCertificate|string|null
$ca_certificate,#[\SensitiveParameter] OpenSSLAsymmetricKey|OpenSSLCertificate|array|string
$private_key,int
$days,?array
$options = null,int
$serial = 0,?string
$serial_hex = null): OpenSSLCertificate|false
openssl_csr_sign() 从给定的 CSR 生成 x509 证书。
注意: 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。
ca_certificate-
生成的证书将由
ca_certificate签名。 如果ca_certificate为null, 生成的证书将是自签名证书。 private_key-
private_key是ca_certificate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。 options-
可以通过
options确定 CSR 签名。 查看 openssl_csr_new() 方法获取options的更多相关信息。 serial-
可选的已签发证书的序列号。如果未指定，将默认为 0。
serial_hex-
可选的十六进制字符串，表示已签发证书的序列号。 如果设置，将优先于
serial参数值。 如果未指定或设置为null，则使用serial参数值。
返回值
成功时返回 OpenSSLCertificate，失败则返回 false。
更新日志
| 版本 | 说明 |
|---|---|
| 8.4.0 |
添加了 serial_hex 参数。
|
| 8.0.0 |
成功时，此函数现在返回 OpenSSLCertificate
实例；之前返回类型 OpenSSL X.509 的 resource。
|
| 8.0.0 |
csr 现在接受 OpenSSLCertificateSigningRequest
实例；之前接受类型 OpenSSL X.509 CSR 的 resource。
|
| 8.0.0 |
ca_certificate 现在接受 OpenSSLCertificate
实例；之前接受类型 OpenSSL X.509 的 resource。
|
| 8.0.0 |
private_key 现在接受 OpenSSLAsymmetricKey
或 OpenSSLCertificate 实例；之前接受类型 OpenSSL key 或
OpenSSL X.509 的 resource。
|
示例
示例 #1 openssl_csr_sign() 示例——签署 CSR（如何实现自己的 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";
}
?>用户贡献的备注 3 notes
Here is an sample how to create valid X.509 Public and Private Key (cert/key).
When not using self signed the 4.2.1 segault. You need the CVS code at least for openssl.
<?
Header("Content-Type: text/plain");
$CA_CERT = "CA.cert.pem";
$CA_KEY = "CA.key.pem";
$req_key = openssl_pkey_new();
if(openssl_pkey_export ($req_key, $out_key)) {
$dn = array(
"countryName" => "DE",
"stateOrProvinceName" => "Frankfurt",
"organizationName" => "smcc.net",
"organizationalUnitName" => "E-Mail",
"commonName" => "Testcert"
);
$req_csr = openssl_csr_new ($dn, $req_key);
$req_cert = openssl_csr_sign($req_csr, "file://$CA_CERT", "file://$CA_KEY", 365);
if(openssl_x509_export ($req_cert, $out_cert)) {
echo "$out_key\n";
echo "$out_cert\n";
}
else echo "Failed Cert\n";
}
else echo "FailedKey\n";
?>To generate a self-signed certificate, pass NULL as the signing certificate (2nd parameter). For example:
$req_key = openssl_pkey_new();
$dn = array(
"countryName" => "US",
"stateOrProvinceName" => "Colorado",
"organizationName" => "yPass.net",
"organizationalUnitName" => "yPass.net",
"commonName" => "yPass.net Root Certificate"
);
$req_csr = openssl_csr_new($dn, $req_key);
$req_cert = openssl_csr_sign($req_csr, NULL, $req_key, 365);备份地址：http://www.lvesu.com/blog/php/function.openssl-csr-sign.php