FM / bindings

/usr/lib/python3/dist-packages/nacl/bindings/

/usr/lib/python3/dist-packages/nacl/bindings

Name	Size	Mode	Actions
__pycache__/	-	0755	rm
crypto_aead.py	15597	0644	edit dl rm
crypto_box.py	10139	0644	edit dl rm
crypto_core.py	13736	0644	edit dl rm
crypto_generichash.py	8852	0644	edit dl rm
crypto_hash.py	2175	0644	edit dl rm
crypto_kx.py	6723	0644	edit dl rm
crypto_pwhash.py	18848	0644	edit dl rm
crypto_scalarmult.py	8244	0644	edit dl rm
crypto_secretbox.py	2914	0644	edit dl rm
crypto_secretstream.py	11165	0644	edit dl rm
crypto_shorthash.py	2603	0644	edit dl rm
crypto_sign.py	10342	0644	edit dl rm
randombytes.py	1563	0644	edit dl rm
sodium_core.py	1039	0644	edit dl rm
utils.py	4298	0644	edit dl rm
__init__.py	16997	0644	edit dl rm

Edit: /usr/lib/python3/dist-packages/nacl/bindings/randombytes.py (1563B)

from nacl import exceptions as exc
from nacl._sodium import ffi, lib

randombytes_SEEDBYTES: int = lib.randombytes_seedbytes()

def randombytes(size: int) -> bytes:
    """
    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)[:]

def randombytes_buf_deterministic(size: int, seed: bytes) -> bytes:
    """
    Returns ``size`` number of deterministically generated pseudorandom bytes
    from a seed

:param size: int
    :param seed: bytes
    :rtype: bytes
    """
    if len(seed) != randombytes_SEEDBYTES:
        raise exc.TypeError(
            "Deterministic random bytes must be generated from 32 bytes"
        )

buf = ffi.new("unsigned char[]", size)
    lib.randombytes_buf_deterministic(buf, size, seed)
    return ffi.buffer(buf, size)[:]

# 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 nacl import exceptions as exc from nacl._sodium import ffi, lib randombytes_SEEDBYTES: int = lib.randombytes_seedbytes() def randombytes(size: int) -> bytes: """ 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)[:] def randombytes_buf_deterministic(size: int, seed: bytes) -> bytes: """ Returns ``size`` number of deterministically generated pseudorandom bytes from a seed :param size: int :param seed: bytes :rtype: bytes """ if len(seed) != randombytes_SEEDBYTES: raise exc.TypeError( "Deterministic random bytes must be generated from 32 bytes" ) buf = ffi.new("unsigned char[]", size) lib.randombytes_buf_deterministic(buf, size, seed) return ffi.buffer(buf, size)[:]