diff options
| -rw-r--r-- | cryptography/fernet.py | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/cryptography/fernet.py b/cryptography/fernet.py index 214b9374..10640d1b 100644 --- a/cryptography/fernet.py +++ b/cryptography/fernet.py @@ -25,11 +25,12 @@ lib = ffi.verify(""" #include <stdbool.h> bool constant_time_compare(uint8_t *a, size_t len_a, uint8_t *b, size_t len_b) { + size_t i = 0; + int result = 0; if (len_a != len_b) { return false; } - int result = 0; - for (size_t i = 0; i < len_a; i++) { + for (i = 0; i < len_a; i++) { result |= a[i] ^ b[i]; } return result == 0; |