1 files changed, 32 insertions, 0 deletions
diff --git a/src/pycryptopp/test/test_from_Nikratio.py b/src/pycryptopp/test/test_from_Nikratio.py
new file mode 100644
index 0000000..a991415
--- /dev/null
+++ b/src/pycryptopp/test/test_from_Nikratio.py
@@ -0,0 +1,32 @@
+import unittest
+
+# This was reported as triggering a "Use of uninitialised value of
+# size 4" under valgrind by Nikratio in pycryptopp-0.5.17 and Crypto++
+# 5.6.0. See http://tahoe-lafs.org/trac/pycryptopp/ticket/67
+
+class T(unittest.TestCase):
+    def test_t(self):
+        import hmac
+        import pycryptopp
+        try:
+            import hashlib
+        except ImportError:
+            # Oh nevermind.
+            return
+        import struct
+
+        def encrypt(buf, passphrase, nonce):
+
+            key = hashlib.sha256(passphrase + nonce).digest()
+            cipher = pycryptopp.cipher.aes.AES(key)
+            hmac_ = hmac.new(key, digestmod=hashlib.sha256)
+
+            hmac_.update(buf)
+            buf = cipher.process(buf)
+            hash_ = cipher.process(hmac_.digest())
+
+            return ''.join(
+                            (struct.pack('<B', len(nonce)),
+                            nonce, hash_, buf))
+
+        encrypt('foobar', 'passphrase', 'nonce')