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Code Issues Releases Wiki Activity

tools: make sure that passed Base58 string uses valid alphabet

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This commit is contained in:
matejcik 2019-01-23 11:34:41 +01:00
parent d668954a3b
commit 7d14018f99
1 changed files with 4 additions and 0 deletions
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4
trezorlib/tools.py
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@ -107,6 +107,10 @@ def b58decode(v, length=None):
if isinstance(v, bytes): if isinstance(v, bytes):
v = v.decode() v = v.decode()
for c in v:
if c not in __b58chars:
raise ValueError("invalid Base58 string")
long_value = 0 long_value = 0
for (i, c) in enumerate(v[::-1]): for (i, c) in enumerate(v[::-1]):
long_value += __b58chars.find(c) * (__b58base ** i) long_value += __b58chars.find(c) * (__b58base ** i)