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wolfcrypt/src/fe_low_mem.c: fixes for cppcheck complaints: funcArgOrderDifferent

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This commit is contained in:
Daniel Pouzzner
2022-01-08 00:30:00 -06:00
parent d4aa6bd1fc
commit 1eb5537e34
1 changed files with 5 additions and 5 deletions
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10
wolfcrypt/src/fe_low_mem.c
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@ -141,7 +141,7 @@ static void xc_diffadd(byte *x5, byte *z5,
}
#ifndef FREESCALE_LTC_ECC
int curve25519(byte *result, const byte *e, const byte *q)
int curve25519(byte *result, const byte *n, const byte *p)
{
/* Current point: P_m */
byte xm[F25519_SIZE];
@ -154,19 +154,19 @@ int curve25519(byte *result, const byte *e, const byte *q)
int i;
/* Note: bit 254 is assumed to be 1 */
lm_copy(xm, q);
lm_copy(xm, p);
for (i = 253; i >= 0; i--) {
const int bit = (e[i >> 3] >> (i & 7)) & 1;
const int bit = (n[i >> 3] >> (i & 7)) & 1;
byte xms[F25519_SIZE];
byte zms[F25519_SIZE];
/* From P_m and P_(m-1), compute P_(2m) and P_(2m-1) */
xc_diffadd(xm1, zm1, q, f25519_one, xm, zm, xm1, zm1);
xc_diffadd(xm1, zm1, p, f25519_one, xm, zm, xm1, zm1);
xc_double(xm, zm, xm, zm);
/* Compute P_(2m+1) */
xc_diffadd(xms, zms, xm1, zm1, xm, zm, q, f25519_one);
xc_diffadd(xms, zms, xm1, zm1, xm, zm, p, f25519_one);
/* Select:
* bit = 1 --> (P_(2m+1), P_(2m))