mpih_cmp_ui: avoid unintentional conditional branch
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mpih_cmp_ui: avoid unintentional conditional branch

* mpi/mpi-internal.h (mpih_limb_is_zero): New.
* mpi/mpih-const-time.c (_gcry_mpih_cmp_ui): Use mpih_limb_is_zero
instead of comparison.

Provenance

jukivili	Authored on Nov 1 2023, 8:45 PM
• gniibe	Committed on Nov 7 2023, 1:28 AM

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rC610667fb2558: ec-nist: use global vone and vzero

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