Added encrypting and decrypting of large files
diff --git a/tests/test_blocks.py b/tests/test_blocks.py
index ce5f03a..22d6500 100644
--- a/tests/test_blocks.py
+++ b/tests/test_blocks.py
@@ -3,6 +3,7 @@
from StringIO import StringIO
import unittest
+import rsa
from rsa import blocks
class VarintTest(unittest.TestCase):
@@ -73,3 +74,33 @@
fixedblocks = list(blocks.yield_fixedblocks(infile, 6))
self.assertEqual(['123456', 'Sybren'], fixedblocks)
+
+class BigfileTest(unittest.TestCase):
+
+ def test_encrypt_decrypt_bigfile(self):
+
+ # Expected block size + 11 bytes padding
+ pub_key, priv_key = rsa.newkeys((6 + 11) * 8)
+
+ # Encrypt the file
+ message = '123456Sybren'
+ infile = StringIO(message)
+ outfile = StringIO()
+
+ blocks.encrypt_bigfile(infile, outfile, pub_key)
+
+ # Test
+ crypto = outfile.getvalue()
+
+ cryptfile = StringIO(crypto)
+ clearfile = StringIO()
+
+ blocks.decrypt_bigfile(cryptfile, clearfile, priv_key)
+ self.assertEquals(clearfile.getvalue(), message)
+
+ # We have 2x6 bytes in the message, so that should result in two
+ # blocks.
+ cryptfile.seek(0)
+ varblocks = list(blocks.yield_varblocks(cryptfile))
+ self.assertEqual(2, len(varblocks))
+