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- # Copyright 2013 Donald Stufft and individual contributors
- #
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- from __future__ import absolute_import, division, print_function
- from nacl._sodium import ffi, lib
- def randombytes(size):
- """
- Returns ``size`` number of random bytes from a cryptographically secure
- random source.
- :param size: int
- :rtype: bytes
- """
- buf = ffi.new("unsigned char[]", size)
- lib.randombytes(buf, size)
- return ffi.buffer(buf, size)[:]
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