From 63a1e76fb96ea14042669675c5cf4bb411d78c74 Mon Sep 17 00:00:00 2001
From: therealyingtong <yingtong@z.cash>
Date: Mon, 10 May 2021 12:11:27 +0800
Subject: [PATCH] Add orchard_utils.py

---
 orchard_key_components.py | 14 ++------------
 orchard_utils.py          | 15 +++++++++++++++
 2 files changed, 17 insertions(+), 12 deletions(-)
 create mode 100644 orchard_utils.py

diff --git a/orchard_key_components.py b/orchard_key_components.py
index 36c10f6..c31da05 100644
--- a/orchard_key_components.py
+++ b/orchard_key_components.py
@@ -8,20 +8,10 @@ from orchard_generators import NULLIFIER_K_BASE, SPENDING_KEY_BASE, group_hash
 from orchard_pallas import Fp, Scalar, Point
 from orchard_poseidon_hash import poseidon_hash
 from orchard_commitments import commit_ivk, note_commit
-from utils import leos2bsp, leos2ip, i2leosp, i2lebsp, lebs2osp
+from utils import leos2bsp, i2leosp, i2lebsp, lebs2osp
+from orchard_utils import to_base, to_scalar
 from tv_output import render_args, render_tv
 
-#
-# Utilities
-#
-
-def to_scalar(buf):
-    return Scalar(leos2ip(buf))
-
-def to_base(buf):
-    return Fp(leos2ip(buf))
-
-
 #
 # PRFs and hashes
 #
diff --git a/orchard_utils.py b/orchard_utils.py
new file mode 100644
index 0000000..af8be00
--- /dev/null
+++ b/orchard_utils.py
@@ -0,0 +1,15 @@
+#!/usr/bin/env python3
+import sys; assert sys.version_info[0] >= 3, "Python 3 required."
+
+from orchard_pallas import Fp, Scalar
+from utils import leos2ip
+
+#
+# Utilities
+#
+
+def to_scalar(buf):
+    return Scalar(leos2ip(buf))
+
+def to_base(buf):
+    return Fp(leos2ip(buf))