fixup: python can do the swap in a 1-liner

borgbackup · Apr 2, 2020 · 1508a33 · 1508a33
1 parent 38ecf69
commit 1508a33
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/src/borg/crypto/key.py b/src/borg/crypto/key.py
@@ -369,9 +369,7 @@ def _derive_byte_permutation(key_material):
         for i in range(256):
             pool, offset = divmod(pool, 256-i)
             j = i + offset
-            tmp = perm[i]
-            perm[i] = perm[j]
-            perm[j] = tmp
+            perm[i], perm[j] = perm[j], perm[i]
 
         if pool == 0:
             # the pool value was less than 256!, we have an unbiased choice