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| author | Paul Kehrer <paul.l.kehrer@gmail.com> | 2019-02-25 13:32:05 +0800 |
|---|---|---|
| committer | Alex Gaynor <alex.gaynor@gmail.com> | 2019-02-25 00:32:05 -0500 |
| commit | 76c784340c3851f402abc38dff8fa5f008cdc4d4 (patch) | |
| tree | b08f245978f3ec2e5ffa8b1ace388944500c8650 /src/cryptography/hazmat/backends/openssl/backend.py | |
| parent | 01a517919ce16cc9dd75db9d02dae00a4cc390bb (diff) | |
| download | cryptography-76c784340c3851f402abc38dff8fa5f008cdc4d4.tar.gz cryptography-76c784340c3851f402abc38dff8fa5f008cdc4d4.tar.bz2 cryptography-76c784340c3851f402abc38dff8fa5f008cdc4d4.zip | |
support NO_ENGINE (#4763)
* support OPENSSL_NO_ENGINE
* support some new openssl config args
* sigh
Diffstat (limited to 'src/cryptography/hazmat/backends/openssl/backend.py')
| -rw-r--r-- | src/cryptography/hazmat/backends/openssl/backend.py | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py index 73491726..d7bba224 100644 --- a/src/cryptography/hazmat/backends/openssl/backend.py +++ b/src/cryptography/hazmat/backends/openssl/backend.py @@ -150,14 +150,15 @@ class Backend(object): self.openssl_assert(res == 1) def activate_osrandom_engine(self): - # Unregister and free the current engine. - self.activate_builtin_random() - with self._get_osurandom_engine() as e: - # Set the engine as the default RAND provider. - res = self._lib.ENGINE_set_default_RAND(e) - self.openssl_assert(res == 1) - # Reset the RNG to use the new engine. - self._lib.RAND_cleanup() + if self._lib.Cryptography_HAS_ENGINE: + # Unregister and free the current engine. + self.activate_builtin_random() + with self._get_osurandom_engine() as e: + # Set the engine as the default RAND provider. + res = self._lib.ENGINE_set_default_RAND(e) + self.openssl_assert(res == 1) + # Reset the RNG to use the new engine. + self._lib.RAND_cleanup() def osrandom_engine_implementation(self): buf = self._ffi.new("char[]", 64) |