From d24f3a490ad3224a71bc5b9f8ee91e84dba3e3c9 Mon Sep 17 00:00:00 2001
From: Mark Qvist <mark@unsigned.io>
Date: Tue, 7 Jun 2022 15:21:19 +0200
Subject: [PATCH] Added internal abstraction to SHA-256

---
 RNS/Cryptography/Hashes.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 RNS/Cryptography/Hashes.py

diff --git a/RNS/Cryptography/Hashes.py b/RNS/Cryptography/Hashes.py
new file mode 100644
index 0000000..cea0f87
--- /dev/null
+++ b/RNS/Cryptography/Hashes.py
@@ -0,0 +1,14 @@
+import hashlib
+
+
+def sha256(data):
+    """
+    The SHA-256 primitive is abstracted here to allow platform-
+    aware hardware acceleration in the future. Currently only
+    uses Python's internal SHA-256 implementation. All SHA-256
+    calls in RNS end up here.
+    """
+    digest = hashlib.sha256()
+    digest.update(data)
+
+    return digest.digest()
\ No newline at end of file