diff --git a/python/build/verify.py b/python/build/verify.py
index 5082ef521..b730c4e39 100644
--- a/python/build/verify.py
+++ b/python/build/verify.py
@@ -27,6 +27,10 @@ def guess_digest_algorithm(digest):
     l = len(digest)
     if l == 32:
         return hashlib.md5
+    elif l == 40:
+        return hashlib.sha1
+    elif l == 64:
+        return hashlib.sha256
     else:
         return None