gh-146311: Reject non-canonical padding bits in base32, 64, & 85 decoding#146312

Draft

gpshead wants to merge 14 commits intopython:mainfrom

gpshead:gh-146311-nonzero-padding-bits

Commits on Mar 22, 2026

Add tests for rejecting non-zero padding bits in base64/base32

gpshead
and
claude
committed
Reject non-zero padding bits in base64/base32 decoding

gpshead
and
claude
committed
Fix test_base64 test data with non-zero padding bits

gpshead
and
claude
committed

Commits on Apr 5, 2026

Simplify base85 canonical check using integer division

gpshead
and
claude
committed
Improve base85/ascii85 canonical test coverage

gpshead
and
claude
committed
Add hypothesis tests for canonical encoding

gpshead
and
claude
committed
Merge branch 'main' into gh-146311-nonzero-padding-bits
gpshead
committed
Reject 1-char base85/ascii85 groups unconditionally

gpshead
and
claude
committed
Enforce z-abbreviation for all-zero groups in ascii85 canonical mode

gpshead
and
claude
committed
Update docs for base85/ascii85 canonical and 1-char group changes

gpshead
and
claude
committed