diff options
Diffstat (limited to 'frozen_deps/Crypto/Random/OSRNG')
| -rw-r--r-- | frozen_deps/Crypto/Random/OSRNG/__init__.py | 40 | ||||
| -rw-r--r-- | frozen_deps/Crypto/Random/OSRNG/fallback.py | 46 | ||||
| -rw-r--r-- | frozen_deps/Crypto/Random/OSRNG/posix.py | 86 | ||||
| -rw-r--r-- | frozen_deps/Crypto/Random/OSRNG/rng_base.py | 88 |
4 files changed, 0 insertions, 260 deletions
diff --git a/frozen_deps/Crypto/Random/OSRNG/__init__.py b/frozen_deps/Crypto/Random/OSRNG/__init__.py deleted file mode 100644 index 2fbbecb..0000000 --- a/frozen_deps/Crypto/Random/OSRNG/__init__.py +++ /dev/null @@ -1,40 +0,0 @@ -# -# Random/OSRNG/__init__.py : Platform-independent OS RNG API -# -# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net> -# -# =================================================================== -# The contents of this file are dedicated to the public domain. To -# the extent that dedication to the public domain is not available, -# everyone is granted a worldwide, perpetual, royalty-free, -# non-exclusive license to exercise all rights associated with the -# contents of this file for any purpose whatsoever. -# No rights are reserved. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS -# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -# SOFTWARE. -# =================================================================== - -"""Provides a platform-independent interface to the random number generators -supplied by various operating systems.""" - -__revision__ = "$Id$" - -import os - -if os.name == 'posix': - from Crypto.Random.OSRNG.posix import new -elif os.name == 'nt': - from Crypto.Random.OSRNG.nt import new -elif hasattr(os, 'urandom'): - from Crypto.Random.OSRNG.fallback import new -else: - raise ImportError("Not implemented") - -# vim:set ts=4 sw=4 sts=4 expandtab: diff --git a/frozen_deps/Crypto/Random/OSRNG/fallback.py b/frozen_deps/Crypto/Random/OSRNG/fallback.py deleted file mode 100644 index 6d4130d..0000000 --- a/frozen_deps/Crypto/Random/OSRNG/fallback.py +++ /dev/null @@ -1,46 +0,0 @@ -# -# Random/OSRNG/fallback.py : Fallback entropy source for systems with os.urandom -# -# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net> -# -# =================================================================== -# The contents of this file are dedicated to the public domain. To -# the extent that dedication to the public domain is not available, -# everyone is granted a worldwide, perpetual, royalty-free, -# non-exclusive license to exercise all rights associated with the -# contents of this file for any purpose whatsoever. -# No rights are reserved. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS -# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -# SOFTWARE. -# =================================================================== - - -__revision__ = "$Id$" -__all__ = ['PythonOSURandomRNG'] - -import os - -from .rng_base import BaseRNG - -class PythonOSURandomRNG(BaseRNG): - - name = "<os.urandom>" - - def __init__(self): - self._read = os.urandom - BaseRNG.__init__(self) - - def _close(self): - self._read = None - -def new(*args, **kwargs): - return PythonOSURandomRNG(*args, **kwargs) - -# vim:set ts=4 sw=4 sts=4 expandtab: diff --git a/frozen_deps/Crypto/Random/OSRNG/posix.py b/frozen_deps/Crypto/Random/OSRNG/posix.py deleted file mode 100644 index ceea7b7..0000000 --- a/frozen_deps/Crypto/Random/OSRNG/posix.py +++ /dev/null @@ -1,86 +0,0 @@ -# -# Random/OSRNG/posix.py : OS entropy source for POSIX systems -# -# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net> -# -# =================================================================== -# The contents of this file are dedicated to the public domain. To -# the extent that dedication to the public domain is not available, -# everyone is granted a worldwide, perpetual, royalty-free, -# non-exclusive license to exercise all rights associated with the -# contents of this file for any purpose whatsoever. -# No rights are reserved. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS -# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -# SOFTWARE. -# =================================================================== - - -__revision__ = "$Id$" -__all__ = ['DevURandomRNG'] - -import errno -import os -import stat - -from .rng_base import BaseRNG -from Crypto.Util.py3compat import b - -class DevURandomRNG(BaseRNG): - - def __init__(self, devname=None): - if devname is None: - self.name = "/dev/urandom" - else: - self.name = devname - - # Test that /dev/urandom is a character special device - f = open(self.name, "rb", 0) - fmode = os.fstat(f.fileno())[stat.ST_MODE] - if not stat.S_ISCHR(fmode): - f.close() - raise TypeError("%r is not a character special device" % (self.name,)) - - self.__file = f - - BaseRNG.__init__(self) - - def _close(self): - self.__file.close() - - def _read(self, N): - # Starting with Python 3 open with buffering=0 returns a FileIO object. - # FileIO.read behaves like read(2) and not like fread(3) and thus we - # have to handle the case that read returns less data as requested here - # more carefully. - data = b("") - while len(data) < N: - try: - d = self.__file.read(N - len(data)) - except IOError as e: - # read(2) has been interrupted by a signal; redo the read - if e.errno == errno.EINTR: - continue - raise - - if d is None: - # __file is in non-blocking mode and no data is available - return data - if len(d) == 0: - # __file is in blocking mode and arrived at EOF - return data - - data += d - return data - -def new(*args, **kwargs): - return DevURandomRNG(*args, **kwargs) - - -# vim:set ts=4 sw=4 sts=4 expandtab: diff --git a/frozen_deps/Crypto/Random/OSRNG/rng_base.py b/frozen_deps/Crypto/Random/OSRNG/rng_base.py deleted file mode 100644 index 546f2e9..0000000 --- a/frozen_deps/Crypto/Random/OSRNG/rng_base.py +++ /dev/null @@ -1,88 +0,0 @@ -# -# Random/OSRNG/rng_base.py : Base class for OSRNG -# -# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net> -# -# =================================================================== -# The contents of this file are dedicated to the public domain. To -# the extent that dedication to the public domain is not available, -# everyone is granted a worldwide, perpetual, royalty-free, -# non-exclusive license to exercise all rights associated with the -# contents of this file for any purpose whatsoever. -# No rights are reserved. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS -# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -# SOFTWARE. -# =================================================================== - -__revision__ = "$Id$" - -import sys -if sys.version_info[0] == 2 and sys.version_info[1] == 1: - from Crypto.Util.py21compat import * - -class BaseRNG(object): - - def __init__(self): - self.closed = False - self._selftest() - - def __del__(self): - self.close() - - def _selftest(self): - # Test that urandom can return data - data = self.read(16) - if len(data) != 16: - raise AssertionError("read truncated") - - # Test that we get different data every time (if we don't, the RNG is - # probably malfunctioning) - data2 = self.read(16) - if data == data2: - raise AssertionError("OS RNG returned duplicate data") - - # PEP 343: Support for the "with" statement - def __enter__(self): - pass - def __exit__(self): - """PEP 343 support""" - self.close() - - def close(self): - if not self.closed: - self._close() - self.closed = True - - def flush(self): - pass - - def read(self, N=-1): - """Return N bytes from the RNG.""" - if self.closed: - raise ValueError("I/O operation on closed file") - if not isinstance(N, int): - raise TypeError("an integer is required") - if N < 0: - raise ValueError("cannot read to end of infinite stream") - elif N == 0: - return "" - data = self._read(N) - if len(data) != N: - raise AssertionError("%s produced truncated output (requested %d, got %d)" % (self.name, N, len(data))) - return data - - def _close(self): - raise NotImplementedError("child class must implement this") - - def _read(self, N): - raise NotImplementedError("child class must implement this") - - -# vim:set ts=4 sw=4 sts=4 expandtab: |