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