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authorPaul Kehrer <paul.l.kehrer@gmail.com>2017-05-03 16:41:30 -0500
committerAlex Gaynor <alex.gaynor@gmail.com>2017-05-03 17:41:30 -0400
commit92f570eabe713653e5fe2dc9ba666493df047ccb (patch)
treeccc909d2897e0943a676f4e77bb5a9ec8ef4fcd8 /src/cryptography/hazmat/backends/openssl/ciphers.py
parent5fb10210276a10f104318504aa81d2ba9c42cba8 (diff)
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use openssl constants (#3534)
Diffstat (limited to 'src/cryptography/hazmat/backends/openssl/ciphers.py')
-rw-r--r--src/cryptography/hazmat/backends/openssl/ciphers.py18
1 files changed, 13 insertions, 5 deletions
diff --git a/src/cryptography/hazmat/backends/openssl/ciphers.py b/src/cryptography/hazmat/backends/openssl/ciphers.py
index b6058150..739ae19a 100644
--- a/src/cryptography/hazmat/backends/openssl/ciphers.py
+++ b/src/cryptography/hazmat/backends/openssl/ciphers.py
@@ -78,8 +78,11 @@ class _CipherContext(object):
len(iv_nonce), self._backend._ffi.NULL
)
self._backend.openssl_assert(res != 0)
- if operation == self._DECRYPT and \
- self._backend.openssl_version_number() < 0x10002000:
+ if (
+ self._operation == self._DECRYPT and
+ self._backend._lib.CRYPTOGRAPHY_OPENSSL_LESS_THAN_102 and
+ not self._backend._lib.CRYPTOGRAPHY_IS_LIBRESSL
+ ):
if mode.tag is None:
raise NotImplementedError(
"delayed passing of GCM tag requires OpenSSL >= 1.0.2."
@@ -140,9 +143,14 @@ class _CipherContext(object):
if isinstance(self._mode, modes.GCM):
self.update(b"")
- if self._operation == self._DECRYPT and \
- isinstance(self._mode, modes.ModeWithAuthenticationTag) and \
- self._backend.openssl_version_number() >= 0x10002000:
+ if (
+ self._operation == self._DECRYPT and
+ isinstance(self._mode, modes.ModeWithAuthenticationTag) and
+ (
+ not self._backend._lib.CRYPTOGRAPHY_OPENSSL_LESS_THAN_102 or
+ self._backend._lib.CRYPTOGRAPHY_IS_LIBRESSL
+ )
+ ):
tag = self._mode.tag
if tag is None:
raise ValueError(