Change method to property

2 files changed, 8 insertions, 5 deletions

diff --git a/src/cryptography/hazmat/backends/openssl/x509.py b/src/cryptography/hazmat/backends/openssl/x509.py
index 18274aa1..c71f8d92 100644
--- a/src/cryptography/hazmat/backends/openssl/x509.py
+++ b/src/cryptography/hazmat/backends/openssl/x509.py
@@ -7,7 +7,7 @@ from __future__ import absolute_import, division, print_function
 import operator
 
 from cryptography import utils, x509
-from cryptography.exceptions import UnsupportedAlgorithm, InvalidSignature
+from cryptography.exceptions import UnsupportedAlgorithm
 from cryptography.hazmat.backends.openssl.decode_asn1 import (
     _CERTIFICATE_EXTENSION_PARSER, _CRL_EXTENSION_PARSER,
     _CSR_EXTENSION_PARSER, _REVOKED_CERTIFICATE_EXTENSION_PARSER,
@@ -363,7 +363,8 @@ class _CertificateSigningRequest(object):
     def signature(self):
         return _asn1_string_to_bytes(self._backend, self._x509_req.signature)
 
-    def verify(self):
+    @property
+    def is_signature_valid(self):
         pkey = self._backend._lib.X509_REQ_get_pubkey(self._x509_req)
         self._backend.openssl_assert(pkey != self._backend._ffi.NULL)
         pkey = self._backend._ffi.gc(pkey, self._backend._lib.EVP_PKEY_free)
@@ -371,4 +372,6 @@ class _CertificateSigningRequest(object):
 
         if res != 1:
             self._backend._consume_errors()
-            raise InvalidSignature
+            return False
+
+        return True
diff --git a/src/cryptography/x509/base.py b/src/cryptography/x509/base.py
index d24070d5..4a22ed02 100644
--- a/src/cryptography/x509/base.py
+++ b/src/cryptography/x509/base.py
@@ -288,8 +288,8 @@ class CertificateSigningRequest(object):
         2986.
         """
 
-    @abc.abstractmethod
-    def verify(self):
+    @abc.abstractproperty
+    def is_signature_valid(self):
         """
         Verifies signature of signing request.
         """