openssl_csr_sign()
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
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
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"; } ?>
config_section_section is incorrect. The correct keyword to use is "config_section_name".
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);
You can use file_get_contents() to directly pass the content instead of giving file paths. Also, if you get an error "sec_error_reused_issuer_and_serial", put a serial into the last parameter: <?php $privkey = array(file_get_contents('ca.key'),"your_ca_key_passphrase"); $usercert = openssl_csr_sign($csrdata, file_get_contents('ca.crt'),$privkey,365,NULL,'06'); openssl_x509_export($usercert,$certout); file_put_contents('serverCASigned.crt',$certout); ?> In that above example the serial was "06".