ASN1: explain the use of BigInteger's for handling OID's

terrafrost · Jan 25, 2025 · 3bb2976 · 3bb2976
1 parent 42a0603
commit 3bb2976
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/phpseclib/File/ASN1.php b/phpseclib/File/ASN1.php
@@ -1152,6 +1152,8 @@ private static function encode_der($source, array $mapping, $idx = null, array $
      */
     public static function decodeOID($content)
     {
+        // BigInteger's are used because of OIDs like 2.25.329800735698586629295641978511506172918
+        // https://healthcaresecprivacy.blogspot.com/2011/02/creating-and-using-unique-id-uuid-oid.html elaborates.
         static $eighty;
         if (!$eighty) {
             $eighty = new BigInteger(80);