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-rw-r--r--src/_cffi_src/openssl/rand.py6
-rw-r--r--src/cryptography/hazmat/backends/openssl/backend.py10
2 files changed, 9 insertions, 7 deletions
diff --git a/src/_cffi_src/openssl/rand.py b/src/_cffi_src/openssl/rand.py
index 68653927..c0cd6836 100644
--- a/src/_cffi_src/openssl/rand.py
+++ b/src/_cffi_src/openssl/rand.py
@@ -9,10 +9,13 @@ INCLUDES = """
"""
TYPES = """
+typedef ... RAND_METHOD;
+
static const long Cryptography_HAS_EGD;
"""
FUNCTIONS = """
+int RAND_set_rand_method(const RAND_METHOD *);
void RAND_add(const void *, int, double);
int RAND_status(void);
int RAND_bytes(unsigned char *, int);
@@ -21,9 +24,6 @@ int RAND_bytes(unsigned char *, int);
1 we'll just lie about the signature to preserve compatibility for
pyOpenSSL (which calls this in its rand.py as of mid-2016) */
void ERR_load_RAND_strings(void);
-
-/* RAND_cleanup became a macro in 1.1.0 */
-void RAND_cleanup(void);
"""
CUSTOMIZATIONS = """
diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py
index c24d334a..ca8b1b62 100644
--- a/src/cryptography/hazmat/backends/openssl/backend.py
+++ b/src/cryptography/hazmat/backends/openssl/backend.py
@@ -133,8 +133,9 @@ class Backend(object):
e = self._lib.ENGINE_get_default_RAND()
if e != self._ffi.NULL:
self._lib.ENGINE_unregister_RAND(e)
- # Reset the RNG to use the new engine.
- self._lib.RAND_cleanup()
+ # Reset the RNG to use the built-in.
+ res = self._lib.RAND_set_rand_method(self._ffi.NULL)
+ self.openssl_assert(res == 1)
# decrement the structural reference from get_default_RAND
res = self._lib.ENGINE_finish(e)
self.openssl_assert(res == 1)
@@ -167,8 +168,9 @@ class Backend(object):
# 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()
+ # Reset the RNG to use the engine
+ res = self._lib.RAND_set_rand_method(self._ffi.NULL)
+ self.openssl_assert(res == 1)
def osrandom_engine_implementation(self):
buf = self._ffi.new("char[]", 64)