- 1 year ago
Php openssl_pkey_export doesn't work
The openssl_pkey_export
function in PHP is used to export a private key as a string. If you're facing issues with this function not working, there could be a few possible reasons. Here are some troubleshooting steps you can take:
Check openssl Extension:
Make sure that the OpenSSL extension is enabled in your PHP configuration. You can do this by checking yourphp.ini
file and ensuring that the following line is not commented out:iniextension=openssl
Check for Errors:
After callingopenssl_pkey_export
, you should check for errors usingopenssl_error_string
to see if there are any errors reported by the OpenSSL library.php$privateKey = openssl_pkey_new();
if ($privateKey === false) {
echo "Error: " . openssl_error_string();
}
Provide Passphrase:
If your private key is encrypted with a passphrase, you need to provide the passphrase as the second parameter toopenssl_pkey_export
.php$privateKey = openssl_pkey_new();
$passphrase = "your_passphrase";
openssl_pkey_export($privateKey, $privateKeyString, $passphrase);
Use the Right Format:
The third parameter ofopenssl_pkey_export
specifies the export format. By default, it'sfalse
, which indicates PEM format. You can explicitly set it totrue
for DER format if needed.php$privateKey = openssl_pkey_new();
openssl_pkey_export($privateKey, $privateKeyString, null, true); // Export in DER format
Memory Limit and Execution Time:
If you're dealing with large keys, make sure that your PHP configuration'smemory_limit
andmax_execution_time
settings are sufficient for the operation.Verify Supported Key Types:
Check that the key type generated byopenssl_pkey_new
is supported byopenssl_pkey_export
.
If none of the above solutions work and you're still facing issues, it might be helpful to provide more details about your code and the specific error message you're encountering.