X-Git-Url: http://wagner.pp.ru/gitweb/?a=blobdiff_plain;f=tests%2Ftestcipher.py;h=7fa5a97b6473e866b4e50f3f8b9a021ed15e98ac;hb=286eefceb9abdd5f09ba85eaf15c7dd47a45856c;hp=052193c2143062046ed8ae615b03874486622523;hpb=4930458710bcd0408bc8956b0aad39ff59de1198;p=oss%2Fctypescrypto.git

diff --git a/tests/testcipher.py b/tests/testcipher.py
index 052193c..7fa5a97 100644
--- a/tests/testcipher.py
+++ b/tests/testcipher.py
@@ -1,6 +1,7 @@
 from ctypescrypto.oid import Oid
 from ctypescrypto import cipher
 import unittest
+import sys
 
 
 class TestCipherType(unittest.TestCase):
@@ -9,6 +10,7 @@ class TestCipherType(unittest.TestCase):
 		self.assertEqual(ct.block_size(),8)
 		self.assertEqual(ct.key_length(),8)
 		self.assertEqual(ct.iv_length(),8)
+		self.assertEqual(ct.algo(),'DES-CBC')
 		self.assertEqual(ct.oid().shortname(),"DES-CBC")
 		self.assertEqual(ct.mode(),"CBC")
 	def test_ciphaesofb(self):
@@ -16,10 +18,18 @@ class TestCipherType(unittest.TestCase):
 		self.assertEqual(ct.block_size(),1)
 		self.assertEqual(ct.key_length(),32)
 		self.assertEqual(ct.iv_length(),16)
+		self.assertEqual(ct.algo(),'AES-256-OFB')
 		self.assertEqual(ct.oid().shortname(),"AES-256-OFB")
 		self.assertEqual(ct.mode(),"OFB")
+	def test_unknowncipher(self):
+		with self.assertRaises(cipher.CipherError):
+			ct=cipher.CipherType("no-such-cipher")
 
 class TestEncryptDecrypt(unittest.TestCase):
+	def test_cons_nokey(self):
+		ct=cipher.CipherType("DES-CBC")
+		with self.assertRaises(ValueError):
+			c=cipher.Cipher(ct,None,None)
 	def test_blockcipher(self):
 		data="sdfdsddf"
 		key='abcdabcd'
@@ -56,13 +66,37 @@ class TestEncryptDecrypt(unittest.TestCase):
 
 	def test_ofb_noiv(self):
 		data="sdfdsddfxx"
-		key='abcdabcd'
-		c=cipher.new("AES-256-OFB",key)
+		encryptkey='abcdabcd'*4
+		decryptkey=encryptkey[0:5]+encryptkey[5:]
+
+
+		c=cipher.new("AES-256-OFB",encryptkey)
 		enc=c.update(data)+c.finish()
 		# See if padding is added by default
 		self.assertEqual(len(enc),len(data))
-		d=cipher.new("AES-256-OFB",key,encrypt=False)
+		d=cipher.new("AES-256-OFB",decryptkey,encrypt=False)
 		dec=d.update(enc)+d.finish()
 		self.assertEqual(data,dec)
+	def test_wrong_keylength(self):
+		data="sdfsdfxxx"
+		key="abcdabcd"
+		with self.assertRaises(ValueError):
+			c=cipher.new("AES-128-OFB",key)
+	def test_wrong_ivlength(self):
+		key="abcdabcdabcdabcd"
+		iv="xxxxx"
+		with self.assertRaises(ValueError):
+			c=cipher.new("AES-128-OFB",key,iv=iv)
+	def test_variable_keylength(self):
+		encryptkey="abcdefabcdefghtlgvasdgdgsdgdsg"
+		data="asdfsdfsdfsdfsdfsdfsdfsdf"
+		iv="abcdefgh"
+		c=cipher.new("bf-ofb",encryptkey,iv=iv)
+		ciphertext=c.update(data)+c.finish()
+		decryptkey=encryptkey[0:5]+encryptkey[5:]
+		d=cipher.new("bf-ofb",decryptkey,encrypt=False,iv=iv)
+		deciph=d.update(ciphertext)+d.finish()
+		self.assertEqual(deciph,data)
+
 if __name__ == '__main__':
 	unittest.main()