parse hex string for hmac

2020-06-11 20:55:05 +02:00
parent 5a88856825
commit 9a61f90fec
1 changed files with 3 additions and 2 deletions
--- a/owrx/receiverid.py
+++ b/owrx/receiverid.py
@@ -75,6 +75,7 @@ class ReceiverId(object):
    @staticmethod
    def signChallenge(challenge, key):
        now = datetime.utcnow().isoformat()
-        signString = "{challenge}:{time}".format(challenge=challenge.challenge, time=now)
-        m = hmac.new(bytes.fromhex(key.secret), msg=signString.encode('utf8'), digestmod=hashlib.sha256)
+        m = hmac.new(bytes.fromhex(key.secret), digestmod=hashlib.sha256)
+        m.update(bytes.fromhex(challenge.challenge))
+        m.update(now.encode('utf8'))
        return now, m.hexdigest()