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-rw-r--r--src/leap/mail/walk.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/leap/mail/walk.py b/src/leap/mail/walk.py
index 8693bdd..b2aa304 100644
--- a/src/leap/mail/walk.py
+++ b/src/leap/mail/walk.py
@@ -17,14 +17,16 @@
"""
Utilities for walking along a message tree.
"""
-from cryptography.hazmat.backends import default_backend
+from cryptography.hazmat.backends.multibackend import MultiBackend
+from cryptography.hazmat.backends.openssl.backend import Backend as OpenSSLBackend
from cryptography.hazmat.primitives import hashes
from leap.mail.utils import first
def get_hash(s):
- digest = hashes.Hash(hashes.SHA256(), default_backend())
+ backend = MultiBackend([OpenSSLBackend()])
+ digest = hashes.Hash(hashes.SHA256(), backend)
digest.update(s)
return digest.finalize().encode("hex").upper()