def test_encode_decode_large(): bytestring = ('123456789012345678901234567890123456789012345678901234567890' '123456789012345678901234567890123456789012345678901234567890' '123456789012345678901234567890123456789012345678901234567890' '123456789012345678901234567890123456789012345678901234567890' '123456789012345678901234567890123456789012345678901234567890' '123456789012345678901234567890123456789012345678901234567890' '123456789012345678901234567890123456789012345678901234567890') int_result = serialization.convert_bytestring_to_int(bytestring) assert serialization.convert_int_to_bytestring(int_result) == bytestring
def _get_bytestring_secret(shares, num_players, max_secret_length): ''' Args: shares, a list of paired integer shares (see schemes/pairing.py) num_players, the number of total players max_secret_length, the max length of the share if it were represented as a bytestring Returns: the original secret as passed to share_authenticated_secret if all shares are valid otherwise, no guarantees are made about the value of the bytestring returned ''' tuple_shares = [pairing.elegant_unpair(share) for share in shares] return serialization.convert_int_to_bytestring(sss._reconstruct_secret_int(num_players, max_secret_length + 1, tuple_shares))
def reconstruct_secret(num_players, max_secret_length, shares): ''' Args: num_players, the total number of players (can be greater than or equal to the number of shares) max_secret_length, the maximum length of the secret represented as a bytestring (ie, len(secret)) shares, a list of strings - each representing an integer value Returns: the original secret as passed to share_authenticated_secret if all shares are valid otherwise, no guarantees are made about the value of the bytestring returned ''' points = [pairing.elegant_unpair(int(share)) for share in shares] secret_int = _reconstruct_secret_int(num_players, max_secret_length + 1, points) return serialization.convert_int_to_bytestring(secret_int)
def test_large_mutation(): bytestring = '\x00\x9c\x9e\x16\xe9' int_result = serialization.convert_bytestring_to_int(bytestring) + 1000000000000000000 # large relative to bytestring length serialization.convert_int_to_bytestring(int_result)
def test_encode_decode_trailing_zeros(): bytestring = 'e\x9c\x9e\x16\xe9\xea\x15+\xbf]\xebx;o\xef\xc9X1c\xaepj\xebj\x12\xe3r\xcd\xeaM\x00\x00' int_result = serialization.convert_bytestring_to_int(bytestring) assert serialization.convert_int_to_bytestring(int_result) == bytestring
def test_encode_decode_leading_star(): bytestring = '**e\x9c\x9e\x16\xe9\xea\x15+\xbf]\xebx;o\xef\xc9X1c\xaepj\xebj\x12\xe3r\xcd\xeaM' int_result = serialization.convert_bytestring_to_int(bytestring) assert serialization.convert_int_to_bytestring(int_result) == bytestring
def test_encode_decode_small(): bytestring = '123' int_result = serialization.convert_bytestring_to_int(bytestring) assert serialization.convert_int_to_bytestring(int_result) == bytestring