def test_codec_identity(self):
self.assertEqual(
codec.decimal_decode(codec.decimal_encode(ZERO_BYTES)),
ZERO_BYTES)
self.assertEqual(
codec.decimal_decode(codec.decimal_encode(RANDOM_BYTES_1024)),
RANDOM_BYTES_1024)
self.assertEqual(
codec.decimal_decode(codec.decimal_encode(RANDOM_BYTES_2048)),
RANDOM_BYTES_2048)
self.assertEqual(
codec.decimal_decode(codec.decimal_encode(RANDOM_BYTES_4093)),
RANDOM_BYTES_4093)
def test_codec_identity(self):
self.assertEqual(
decimal_decode(decimal_encode(zero_bytes)),
zero_bytes)
self.assertEqual(
decimal_decode(decimal_encode(random_bytes_1024)),
random_bytes_1024)
self.assertEqual(
decimal_decode(decimal_encode(random_bytes_2048)),
random_bytes_2048)
self.assertEqual(
decimal_decode(decimal_encode(random_bytes_len_4093)),
random_bytes_len_4093)
def generate_nonce(n_bits=64):
"""
Generates a random ASCII-encoded unsigned integral number in decimal
representation.
The nonce/timestamp pair should always be unique to prevent replay attacks.
:see: Nonce and Timestamp (http://tools.ietf.org/html/rfc5849#section-3.3)
:param n_bits:
Bit size. Default 64.
:returns:
A string representation of a randomly-generated ASCII-encoded
decimal-representation unsigned integral number based on the bit size
specified.
"""
return decimal_encode(generate_random_bits(n_bits))