arno/trezor-firmware
1
0
Fork 0
mirror of https://github.com/trezor/trezor-firmware.git synced 2024-11-25 17:09:44 +00:00
Code Issues Releases Wiki Activity

core: ensure pubkeyhash/scripthash have the correct length (#220)

Browse Source
This commit is contained in:
Roman Zeyde 2019-06-11 15:34:58 +03:00 committed by Pavol Rusnak
parent 0e277dfcb0
commit 40bf2c5d2e
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
core/src/apps/wallet/sign_tx/scripts.py
View File

@ -31,6 +31,7 @@ def input_script_p2pkh_or_p2sh(
def output_script_p2pkh(pubkeyhash: bytes) -> bytearray:
ensure(len(pubkeyhash) == 20)
s = bytearray(25)
s[0] = 0x76 # OP_DUP
s[1] = 0xA9 # OP_HASH_160
@ -43,7 +44,7 @@ def output_script_p2pkh(pubkeyhash: bytes) -> bytearray:
def output_script_p2sh(scripthash: bytes) -> bytearray:
# A9 14 <scripthash> 87
ensure(len(scripthash) == 20)
s = bytearray(23)
s[0] = 0xA9 # OP_HASH_160
s[1] = 0x14 # pushing 20 bytes