def get_ber_encoded_signed_attributes(signed_attrs):
"""Get the BER-encoded signed attributes.
class_, method, and tag are needed to emit the BER
encoded version of the header + content.
These values are not exposed on SignerInfo
so we get them from the parent class.
Args:
signed_attrs (asn1crypto.cms.CMSAttributes): The signed
attributes from the signature
Returns:
str: The BER-encoded signed attributes as a string
of bytes
"""
class_ = super(signed_attrs.__class__, signed_attrs).class_
method = super(signed_attrs.__class__, signed_attrs).method
tag = super(signed_attrs.__class__, signed_attrs).tag
return parser.emit(class_, method, tag, signed_attrs.contents)
def test_emit_type_errors(self):
with self.assertRaises(TypeError):
parser.emit('0', 0, 2, b'\x00')
with self.assertRaises(ValueError):
parser.emit(-1, 0, 2, b'\x00')
with self.assertRaises(TypeError):
parser.emit(0, '0', 2, b'\x00')
with self.assertRaises(ValueError):
parser.emit(0, 5, 2, b'\x00')
with self.assertRaises(TypeError):
parser.emit(0, 0, '2', b'\x00')
with self.assertRaises(ValueError):
parser.emit(0, 0, -1, b'\x00')
with self.assertRaises(TypeError):
parser.emit(0, 0, 2, '\x00')
def test_emit(self):
self.assertEqual(b'\x02\x01\x00', parser.emit(0, 0, 2, b'\x00'))
def test_emit_type_errors(self):
with self.assertRaises(TypeError):
parser.emit('0', 0, 2, b'\x00')
with self.assertRaises(ValueError):
parser.emit(-1, 0, 2, b'\x00')
with self.assertRaises(TypeError):
parser.emit(0, '0', 2, b'\x00')
with self.assertRaises(ValueError):
parser.emit(0, 5, 2, b'\x00')
with self.assertRaises(TypeError):
parser.emit(0, 0, '2', b'\x00')
with self.assertRaises(ValueError):
parser.emit(0, 0, -1, b'\x00')
with self.assertRaises(TypeError):
parser.emit(0, 0, 2, '\x00')
def test_emit(self):
self.assertEqual(b'\x02\x01\x00', parser.emit(0, 0, 2, b'\x00'))