diff options
Diffstat (limited to 'gallery_dl/aes.py')
| -rw-r--r-- | gallery_dl/aes.py | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gallery_dl/aes.py b/gallery_dl/aes.py index 22cb052..891104a 100644 --- a/gallery_dl/aes.py +++ b/gallery_dl/aes.py @@ -227,11 +227,12 @@ def aes_gcm_decrypt_and_verify(data, key, tag, nonce): decrypted_data = aes_ctr_decrypt( data, key, iv_ctr + [0] * (BLOCK_SIZE_BYTES - len(iv_ctr))) - pad_len = len(data) // 16 * 16 + pad_len = ( + (BLOCK_SIZE_BYTES - (len(data) % BLOCK_SIZE_BYTES)) % BLOCK_SIZE_BYTES) s_tag = ghash( hash_subkey, data + - [0] * (BLOCK_SIZE_BYTES - len(data) + pad_len) + # pad + [0] * pad_len + # pad bytes_to_intlist( (0 * 8).to_bytes(8, "big") + # length of associated data ((len(data) * 8).to_bytes(8, "big")) # length of data |