mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-20 21:38:26 +00:00
27 lines
820 B
Python
27 lines
820 B
Python
from typing import *
|
|
|
|
# extmod/modtrezorutils/modtrezorutils.c
|
|
def consteq(sec: bytes, pub: bytes) -> bool:
|
|
'''
|
|
Compares the private information in `sec` with public, user-provided
|
|
information in `pub`. Runs in constant time, corresponding to a length
|
|
of `pub`. Can access memory behind valid length of `sec`, caller is
|
|
expected to avoid any invalid memory access.
|
|
'''
|
|
|
|
# extmod/modtrezorutils/modtrezorutils.c
|
|
def memcpy(dst: bytearray, dst_ofs: int,
|
|
src: bytearray, src_ofs: int,
|
|
n: int) -> int:
|
|
'''
|
|
Copies at most `n` bytes from `src` at offset `src_ofs` to
|
|
`dst` at offset `dst_ofs`. Returns the number of actually
|
|
copied bytes.
|
|
'''
|
|
|
|
# extmod/modtrezorutils/modtrezorutils.c
|
|
def halt(msg: str = None) -> None:
|
|
'''
|
|
Halts execution.
|
|
'''
|