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cipher-xts: harden mask generation against branch optimization
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Description

cipher-xts: harden mask generation against branch optimization

* cipher/cipher-xts.c (xts_gfmul_byA): Generate mask with const-time
helper.

Cherry-pick master commit of:
ee5cb3833d5b649ca360ab2bbde5ffaa28cbb717

  • Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>

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jukiviliAuthored on Sep 17 2025, 6:08 PM
• gniibeCommitted on Nov 20 2025, 2:29 AM
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rCefa0e8fdee5c: rijndael: harden mask generation against branch optimization
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