tutil.randrange: use stdlib 'secrets' module instead of 'python-ecdsa' - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
DIR Log
DIR Files
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---
DIR commit 120da2783b032be0a58d01c1ef40a23dcff88f2b
DIR parent 1c07777e135d28fffa157019f90ccdaa002b614e
HTML Author: SomberNight <somber.night@protonmail.com>
Date: Sat, 7 Nov 2020 19:26:30 +0100
util.randrange: use stdlib 'secrets' module instead of 'python-ecdsa'
Diffstat:
M electrum/util.py | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
---
DIR diff --git a/electrum/util.py b/electrum/util.py
t@@ -44,15 +44,15 @@ import ssl
import ipaddress
from ipaddress import IPv4Address, IPv6Address
import random
-import attr
+import secrets
+import attr
import aiohttp
from aiohttp_socks import ProxyConnector, ProxyType
import aiorpcx
from aiorpcx import TaskGroup
import certifi
import dns.resolver
-import ecdsa
from .i18n import _
from .logging import get_logger, Logger
t@@ -1306,7 +1306,9 @@ def resolve_dns_srv(host: str):
def randrange(bound: int) -> int:
"""Return a random integer k such that 1 <= k < bound, uniformly
distributed across that range."""
- return ecdsa.util.randrange(bound)
+ # secrets.randbelow(bound) returns a random int: 0 <= r < bound,
+ # hence transformations:
+ return secrets.randbelow(bound - 1) + 1
class CallbackManager: