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Bug Report #1486

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3 changes: 2 additions & 1 deletion phpseclib/File/ASN1.php
Expand Up @@ -1458,11 +1458,12 @@ public static function extractBER($str)
* subject=/O=organization/OU=org unit/CN=common name
* issuer=/O=organization/CN=common name
*/

$temp = strlen($str) <= ini_get('pcre.backtrack_limit') ?
preg_replace('#.*?^-+[^-]+-+[\r\n ]*$#ms', '', $str, 1) :
$str;
// remove the -----BEGIN CERTIFICATE----- and -----END CERTIFICATE----- stuff
$temp = preg_replace('#-+[^-]+-+#', '', $temp);
$temp = preg_replace('#-+[^-]+-+#', '', $str);
// remove new lines
$temp = str_replace(["\r", "\n", ' '], '', $temp);
$temp = preg_match('#^[a-zA-Z\d/+]*={0,2}$#', $temp) ? Base64::decode($temp) : false;
Expand Down