Improve the performance of len(crl)
diff --git a/src/cryptography/hazmat/backends/openssl/x509.py b/src/cryptography/hazmat/backends/openssl/x509.py
index 12f5d46..b342cd8 100644
--- a/src/cryptography/hazmat/backends/openssl/x509.py
+++ b/src/cryptography/hazmat/backends/openssl/x509.py
@@ -865,8 +865,7 @@
revoked = self._backend._lib.X509_CRL_get_REVOKED(self._x509_crl)
revoked_list = []
if revoked != self._backend._ffi.NULL:
- num = self._backend._lib.sk_X509_REVOKED_num(revoked)
- for i in range(num):
+ for i in range(len(self)):
r = self._backend._lib.sk_X509_REVOKED_value(revoked, i)
self._backend.openssl_assert(r != self._backend._ffi.NULL)
revoked_certificate = _RevokedCertificate(
@@ -883,7 +882,11 @@
return self._revoked_certificates()[idx]
def __len__(self):
- return len(self._revoked_certificates())
+ revoked = self._backend._lib.X509_CRL_get_REVOKED(self._x509_crl)
+ if revoked == self._backend._ffi.NULL:
+ return 0
+ else:
+ return self._backend._lib.sk_X509_REVOKED_num(revoked)
@property
def extensions(self):