def testObjDecode3(self):
# Decode payload with too much data gives error
der = DerObject(0x02)
self.assertRaises(ValueError, der.decode, b('\x02\x02\x01\x02\xFF'))
# Decode payload with too little data gives error
der = DerObject(0x02)
self.assertRaises(ValueError, der.decode, b('\x02\x02\x01'))
def testObjEncode1(self):
# No payload
der = DerObject(b('\x02'))
self.assertEquals(der.encode(), b('\x02\x00'))
# Small payload (primitive)
der.payload = b('\x45')
self.assertEquals(der.encode(), b('\x02\x01\x45'))
# Invariant
self.assertEquals(der.encode(), b('\x02\x01\x45'))
# Initialize with numerical tag
der = DerObject(0x04)
der.payload = b('\x45')
self.assertEquals(der.encode(), b('\x04\x01\x45'))
# Initialize with constructed type
der = DerObject(b('\x10'), constructed=True)
self.assertEquals(der.encode(), b('\x30\x00'))
def testObjEncode4(self):
# Implicit tags (constructed)
der = DerObject(0x10, implicit=1, constructed=True)
der.payload = b('ppll')
self.assertEquals(der.encode(), b('\xa1\x04ppll'))
# Implicit tags (primitive)
der = DerObject(0x02, implicit=0x1E, constructed=False)
der.payload = b('ppll')
self.assertEquals(der.encode(), b('\x9E\x04ppll'))
def testObjDecode4(self):
# Decode implicit tag (primitive)
der = DerObject(0x02, constructed=False, implicit=0xF)
self.assertRaises(ValueError, der.decode, b('\x02\x02\x01\x02'))
der.decode(b('\x8F\x01\x00'))
self.assertEquals(der.payload, b('\x00'))
# Decode implicit tag (constructed)
der = DerObject(0x02, constructed=True, implicit=0xF)
self.assertRaises(ValueError, der.decode, b('\x02\x02\x01\x02'))
der.decode(b('\xAF\x01\x00'))
self.assertEquals(der.payload, b('\x00'))
def testObjDecode7(self):
# Decode explicit tag
der = DerObject(0x10, explicit=5)
der.decode(b("\xa5\x06\x10\x04xxll"))
self.assertEquals(der._inner_tag_octet, 0x10)
self.assertEquals(der.payload, b('xxll'))
# Explicit tag may be 0
der = DerObject(0x10, explicit=0)
der.decode(b("\xa0\x06\x10\x04xxll"))
self.assertEquals(der._inner_tag_octet, 0x10)
self.assertEquals(der.payload, b('xxll'))
def testObjEncode4(self):
# Implicit tags (constructed)
der = DerObject(0x10, implicit=1, constructed=True)
der.payload = b('ppll')
self.assertEquals(der.encode(), b('\xa1\x04ppll'))
# Implicit tags (primitive)
der = DerObject(0x02, implicit=0x1E, constructed=False)
der.payload = b('ppll')
self.assertEquals(der.encode(), b('\x9E\x04ppll'))
def testObjDecode4(self):
# Decode implicit tag (primitive)
der = DerObject(0x02, constructed=False, implicit=0xF)
self.assertRaises(ValueError, der.decode, b('\x02\x02\x01\x02'))
der.decode(b('\x8F\x01\x00'))
self.assertEquals(der.payload, b('\x00'))
# Decode implicit tag (constructed)
der = DerObject(0x02, constructed=True, implicit=0xF)
self.assertRaises(ValueError, der.decode, b('\x02\x02\x01\x02'))
der.decode(b('\xAF\x01\x00'))
self.assertEquals(der.payload, b('\x00'))
def testObjDecode7(self):
# Decode explicit tag
der = DerObject(0x10, explicit=5)
der.decode(b("\xa5\x06\x10\x04xxll"))
self.assertEquals(der._inner_tag_octet, 0x10)
self.assertEquals(der.payload, b('xxll'))
# Explicit tag may be 0
der = DerObject(0x10, explicit=0)
der.decode(b("\xa0\x06\x10\x04xxll"))
self.assertEquals(der._inner_tag_octet, 0x10)
self.assertEquals(der.payload, b('xxll'))
def testObjDecode2(self):
# Decode long payload
der = DerObject(0x02)
der.decode(b('\x02\x81\x80' + "1" * 128))
self.assertEquals(der.payload, b("1") * 128)
self.assertEquals(der._tag_octet, 0x02)
def testObjEncode2(self):
# Initialize with payload
der = DerObject(0x03, b('\x12\x12'))
self.assertEquals(der.encode(), b('\x03\x02\x12\x12'))
def testObjEncode3(self):
# Long payload
der = DerObject(b('\x10'))
der.payload = b("0") * 128
self.assertEquals(der.encode(), b('\x10\x81\x80' + "0" * 128))
def testObjDecode8(self):
# Verify that decode returns the object
der = DerObject(0x02)
self.assertEqual(der, der.decode(b('\x02\x02\x01\x02')))
def testObjEncode1(self):
# No payload
der = DerObject(b('\x02'))
self.assertEquals(der.encode(), b('\x02\x00'))
# Small payload (primitive)
der.payload = b('\x45')
self.assertEquals(der.encode(), b('\x02\x01\x45'))
# Invariant
self.assertEquals(der.encode(), b('\x02\x01\x45'))
# Initialize with numerical tag
der = DerObject(0x04)
der.payload = b('\x45')
self.assertEquals(der.encode(), b('\x04\x01\x45'))
# Initialize with constructed type
der = DerObject(b('\x10'), constructed=True)
self.assertEquals(der.encode(), b('\x30\x00'))
def testObjDecode6(self):
# Arbitrary DER object
der = DerObject()
der.decode(b('\x65\x01\x88'))
self.assertEquals(der._tag_octet, 0x65)
self.assertEquals(der.payload, b('\x88'))
def testObjDecode6(self):
# Arbitrary DER object
der = DerObject()
der.decode(b('\x65\x01\x88'))
self.assertEquals(der._tag_octet, 0x65)
self.assertEquals(der.payload, b('\x88'))
def testObjEncode2(self):
# Initialize with payload
der = DerObject(0x03, b('\x12\x12'))
self.assertEquals(der.encode(), b('\x03\x02\x12\x12'))
def testObjDecode5(self):
# Decode payload with unexpected tag gives error
der = DerObject(0x02)
self.assertRaises(ValueError, der.decode, b('\x03\x02\x01\x02'))
def testObjDecode8(self):
# Verify that decode returns the object
der = DerObject(0x02)
self.assertEqual(der, der.decode(b('\x02\x02\x01\x02')))
def testObjEncode5(self):
# Encode type with explicit tag
der = DerObject(0x10, explicit=5)
der.payload = b("xxll")
self.assertEqual(der.encode(), b("\xa5\x06\x10\x04xxll"))
def testObjDecode1(self):
# Decode short payload
der = DerObject(0x02)
der.decode(b('\x02\x02\x01\x02'))
self.assertEquals(der.payload, b("\x01\x02"))
self.assertEquals(der._tag_octet, 0x02)
def testObjEncode5(self):
# Encode type with explicit tag
der = DerObject(0x10, explicit=5)
der.payload = b("xxll")
self.assertEqual(der.encode(), b("\xa5\x06\x10\x04xxll"))
def testObjEncode3(self):
# Long payload
der = DerObject(b('\x10'))
der.payload = b("0")*128
self.assertEquals(der.encode(), b('\x10\x81\x80' + "0"*128))
def testObjDecode1(self):
# Decode short payload
der = DerObject(0x02)
der.decode(b('\x02\x02\x01\x02'))
self.assertEquals(der.payload, b("\x01\x02"))
self.assertEquals(der._tag_octet, 0x02)
def testObjDecode2(self):
# Decode long payload
der = DerObject(0x02)
der.decode(b('\x02\x81\x80' + "1"*128))
self.assertEquals(der.payload, b("1")*128)
self.assertEquals(der._tag_octet, 0x02)
