diff options
Diffstat (limited to 'tests/hazmat')
| -rw-r--r-- | tests/hazmat/backends/test_openssl.py | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/tests/hazmat/backends/test_openssl.py b/tests/hazmat/backends/test_openssl.py index db3c19b8..47c46065 100644 --- a/tests/hazmat/backends/test_openssl.py +++ b/tests/hazmat/backends/test_openssl.py @@ -11,6 +11,8 @@ import subprocess import sys import textwrap +from pkg_resources import parse_version + import pytest from cryptography import utils, x509 @@ -173,19 +175,6 @@ class TestOpenSSL(object): bn = backend._int_to_bn(0) assert backend._bn_to_int(bn) == 0 - def test_actual_osrandom_bytes(self, monkeypatch): - skip_if_libre_ssl(backend.openssl_version_text()) - sample_data = (b"\x01\x02\x03\x04" * 4) - length = len(sample_data) - - def notrandom(size): - assert size == length - return sample_data - monkeypatch.setattr(os, "urandom", notrandom) - buf = backend._ffi.new("unsigned char[]", length) - backend._lib.RAND_bytes(buf, length) - assert backend._ffi.buffer(buf)[0:length] == sample_data - class TestOpenSSLRandomEngine(object): def setup(self): @@ -282,6 +271,23 @@ class TestOpenSSLRandomEngine(object): e = backend._lib.ENGINE_get_default_RAND() assert e == backend._ffi.NULL + def test_osrandom_engine_implementation(self): + name = backend.osrandom_engine_implementation() + assert name in ['/dev/urandom', 'CryptGenRandom', 'getentropy', + 'getrandom'] + if sys.platform.startswith('linux'): + assert name in ['getrandom', '/dev/urandom'] + if sys.platform == 'darwin': + # macOS 10.12+ supports getentropy + if parse_version(os.uname()[2]) >= parse_version("16.0"): + assert name == 'getentropy' + else: + assert name == '/dev/urandom' + if 'bsd' in sys.platform: + assert name in ['getentropy', '/dev/urandom'] + if sys.platform == 'win32': + assert name == 'CryptGenRandom' + def test_activate_osrandom_already_default(self): e = backend._lib.ENGINE_get_default_RAND() name = backend._lib.ENGINE_get_name(e) |