8000 gh-135244: use CSPRNG for random UUID node ID by LamentXU123 · Pull Request #135226 · python/cpython · GitHub
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Merged
merged 13 commits into from
Jun 8, 2025
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gh-135244: use CSPRNG for random UUID node ID #135226

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Update uuid.py
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Update uuid.py
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@LamentXU123
LamentXU123 authored Jun 8, 2025
commit c225ab82c49fdd42d3b1d43cd72c8128452c0120
4 changes: 2 additions & 2 deletions Lib/uuid.py
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Expand Up @@ -666,8 +666,8 @@ def _random_getnode():
# counting from 1 being the least significant bit, or 1<<40.
#
# See https://en.wikipedia.org/w/index.php?title=MAC_address&oldid=1128764812#Universal_vs._local_(U/L_bit)
import secrets
return secrets.randbits(48) | (1 << 40)

return (int.from_bytes(__import__('os').urandom(6), 'big')) | (1 << 40)


# _OS_GETTERS, when known, are targeted for a specific OS or platform.
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