Implemented Keypair::getPublicKeyChecksum

zulucrypto · Aug 12, 2018 · eb22c4a · eb22c4a
1 parent e2ed0dc
commit eb22c4a
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/src/Keypair.php b/src/Keypair.php
@@ -189,6 +189,20 @@ public function getHint()
         return substr($this->publicKey, -4);
     }
 
+    /**
+     * Returns the raw bytes of the checksum for the public key
+     *
+     * @return string
+     */
+    public function getPublicKeyChecksum()
+    {
+        $checksumBytes = substr($this->getPublicKeyBytes(), -2);
+
+        $unpacked = unpack('v', $checksumBytes);
+
+        return array_shift($unpacked);
+    }
+
     /**
      * Returns the base-32 encoded private key (S...)
      * @return string