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PHP - Manual: openssl_x509_check_private_key

2024-11-14

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(mixed $cert, mixed $key): bool

检查给定的私钥 key 是否和证书 cert 对应。

警告

这个函数不会检查密钥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key赋一个公钥值,该函数可能返回 true.

参数

cert

证书。

key

私钥。

返回值

如果给定的私钥 key 和证书 cert对应, 返回true 否则返回 false .

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User Contributed Notes 2 notes

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5
tomsie at toms dot ie
4 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
7 years ago
This function will return FALSE if the private key requires a pass phrase.

官方地址:https://www.php.net/manual/en/function.openssl-x509-check-private-key.php

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