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openssl_x509_check_private_key

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

openssl_x509_check_private_key检查私钥是否对应于证书

说明

openssl_x509_check_private_key(OpenSSLCertificate|string $certificate, OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $private_key): bool

检查指定的私钥 private_key 是否和证书 certificate 对应。

警告

这个函数不会检查密钥 private_key 是否真的是私钥。 它只是比较了和密钥匹配的公共材料 (比如,RSA 密钥的指数和模量) 和/或密钥参数(比如,EC 密钥的参数)。

这也意味着,比如,提供给 private_key 赋一个公钥值,该函数可能返回 true

参数

certificate

证书。

private_key

私钥。

返回值

如果指定的私钥 private_key 和证书 certificate 对应,返回 true 否则返回 false

更新日志

版本 说明
8.0.0 certificate 现在接受 OpenSSLCertificate 实例;之前接受类型 OpenSSL X.509resource
8.0.0 private_key 现在接受 OpenSSLAsymmetricKeyOpenSSLCertificate 实例;之前接受类型 OpenSSL keyOpenSSL X.509resource
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User Contributed Notes 2 notes

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7
tomsie at toms dot ie
6 years ago
This function DOES return TRUE if the key has a passphrase, you just need to set up the data in such a way that the function can understand it. It is not documented here.

This error message led me to the solution:

PHP Warning: openssl_x509_check_private_key(): key array must be of the form array(0 => key, 1 => phrase)

So this works:

$certFile = file_get_contents('cert.crt');
$keyFile = file_get_contents('cert.key');
$keyPassphrase = "password1234";
$keyCheckData = array(0=>$keyFile,1=>$keyPassphrase);
$result = openssl_x509_check_private_key($certFile,$keyCheckData);
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0
jared at enhancesoft dot com
8 years ago
This function will return FALSE if the private key requires a pass phrase.
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