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core: ensure correct pubkeyhash/witprog length in scripts.py (#254)

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Roman Zeyde 2019-06-22 17:22:00 +03:00 committed by Pavol Rusnak
parent e3e2811f7a
commit 6fb76f95d1
1 changed files with 2 additions and 0 deletions
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2
core/src/apps/wallet/sign_tx/scripts.py
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@ -88,6 +88,7 @@ def output_script_native_p2wpkh_or_p2wsh(witprog: bytes) -> bytearray:
# Either:
# 00 14 <20-byte-key-hash>
# 00 20 <32-byte-script-hash>
ensure(len(witprog) == 20 or len(witprog) == 32)
w = empty_bytearray(3 + len(witprog))
w.append(0x00) # witness version byte
@ -107,6 +108,7 @@ def output_script_native_p2wpkh_or_p2wsh(witprog: bytes) -> bytearray:
def input_script_p2wpkh_in_p2sh(pubkeyhash: bytes) -> bytearray:
# 16 00 14 <pubkeyhash>
# Signature is moved to the witness.
ensure(len(pubkeyhash) == 20)
w = empty_bytearray(3 + len(pubkeyhash))
w.append(0x16) # length of the data