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Update sm9_z256.c

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Zhi Guan
2024-05-23 16:43:08 +08:00
parent f3ceaa4e4e
commit b3707dbabf
1 changed files with 9 additions and 5 deletions
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14
src/sm9_z256.c
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@@ -350,10 +350,10 @@ int sm9_z256_get_booth(const uint64_t a[4], uint64_t window_size, int i)
int n, j; int n, j;
if (i == 0) { if (i == 0) {
return ((a[0] << 1) & mask) - (a[0] & mask); return (int)((a[0] << 1) & mask) - (int)(a[0] & mask);
} }
j = i * window_size - 1; j = i * (int)window_size - 1;
n = j / 64; n = j / 64;
j = j % 64; j = j % 64;
@@ -361,7 +361,7 @@ int sm9_z256_get_booth(const uint64_t a[4], uint64_t window_size, int i)
if ((64 - j) < (window_size + 1) && n < 3) { if ((64 - j) < (window_size + 1) && n < 3) {
wbits |= a[n + 1] << (64 - j); wbits |= a[n + 1] << (64 - j);
} }
return (wbits & mask) - ((wbits >> 1) & mask); return (int)(wbits & mask) - (int)((wbits >> 1) & mask);
} }
int sm9_z256_from_hex(sm9_z256_t r, const char *hex) int sm9_z256_from_hex(sm9_z256_t r, const char *hex)
@@ -385,7 +385,7 @@ void sm9_z256_to_hex(const sm9_z256_t r, char hex[64])
{ {
int i; int i;
for (i = 3; i >= 0; i--) { for (i = 3; i >= 0; i--) {
(void)sprintf(hex + 16*(3-i), "%016lx", r[i]); (void)sprintf(hex + 16*(3-i), "%016llx", (unsigned long long)r[i]);
} }
} }
@@ -1794,7 +1794,11 @@ int sm9_z256_point_from_hex(SM9_Z256_POINT *R, const char hex[64 * 2 + 1])
int sm9_z256_point_is_at_infinity(const SM9_Z256_POINT *P) int sm9_z256_point_is_at_infinity(const SM9_Z256_POINT *P)
{ {
return sm9_z256_is_zero(P->Z); if (sm9_z256_is_zero(P->Z)) {
return 1;
} else {
return 0;
}
} }
void sm9_z256_point_set_infinity(SM9_Z256_POINT *R) void sm9_z256_point_set_infinity(SM9_Z256_POINT *R)