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This commit is contained in:
StarsAC
2025-10-20 01:07:36 +00:00
parent dd133d7aca
commit 9f0409b6b4
127 changed files with 27086 additions and 0 deletions
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15
src/pqm4/sqisign_lvl5/ref/fp.c Normal file
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@@ -0,0 +1,15 @@
#include <fp.h>
/*
* If ctl == 0x00000000, then *d is set to a0
* If ctl == 0xFFFFFFFF, then *d is set to a1
* ctl MUST be either 0x00000000 or 0xFFFFFFFF.
*/
void
fp_select(fp_t *d, const fp_t *a0, const fp_t *a1, uint32_t ctl)
{
digit_t cw = (int32_t)ctl;
for (unsigned int i = 0; i < NWORDS_FIELD; i++) {
(*d)[i] = (*a0)[i] ^ (cw & ((*a0)[i] ^ (*a1)[i]));
}
}