diff options
| -rw-r--r-- | cryptography/hazmat/primitives/padding.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/cryptography/hazmat/primitives/padding.py b/cryptography/hazmat/primitives/padding.py index b07f5014..926a4bbd 100644 --- a/cryptography/hazmat/primitives/padding.py +++ b/cryptography/hazmat/primitives/padding.py @@ -20,7 +20,7 @@ from cryptography.hazmat.primitives import interfaces _ffi = cffi.FFI() _ffi.cdef(""" -bool Cryptography_check_padding(uint8_t *, unsigned int); +bool Cryptography_check_padding(const uint8_t *, unsigned int); """) _lib = _ffi.verify(""" #include <stdbool.h> @@ -40,7 +40,7 @@ unsigned int Cryptography_constant_time_lt(unsigned int a, unsigned int b) { return Cryptography_DUPLICATE_MSB_TO_ALL(a); } -bool Cryptography_check_padding(uint8_t *data, unsigned int block_len) { +bool Cryptography_check_padding(const uint8_t *data, unsigned int block_len) { unsigned int i; uint8_t pad_size = data[block_len - 1]; uint8_t mismatch = 0; |