openssl_pkey_new function is not working in the PHP version above 8.2+

[Pratik2121]

Description

The following code is not working after the 8.2 version

$privkey = openssl_pkey_new(array(
      "digest_alg"=>'md5',
      "private_key_bits" => 2048,
      "private_key_type" => OPENSSL_KEYTYPE_RSA,
));
$key_details = openssl_pkey_get_details($privkey);
print_r($key_details);

PHP Version

PHP 8.3

Operating System

Windows 10

[bukka]

PHP 8.2 switched to OpenSSL 3.0 so you might need to add some extra setting to enable unsecure algorithms or change your app. It's most likely due to using md5 as digest key which you should not be using in the first place. If you really really need to use, then you might try to lower security level in your openssl.cnf. You can also try to enable legacy provider if that doesn't work like described in #12369 but don't think it's needed for md5 digest alg.

[bukka]

I set it to feedback as there is not much on our side to do but if you still feel, there's some other issue, please comment here.

[Pratik2121]

I am using OpenSSL 3.2 which is latest so I don't think this solution work

[bukka]

Have you tried to lower security level in your openssl.cnf?

[bukka]

New OpenSSL versions have higher security level so it does not allow some algorithm. In addition some old algorithms have been moved to legacy provider which must be explicitly enabled to be able to use them.

[bukka]

I assume you are not using PHP provided binaries if you are using OpenSSL 3.2, right?