Fix bug with negative operand.

relic-toolkit · Oct 19, 2023 · 4259ff2 · 4259ff2
1 parent f05130c
commit 4259ff2
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/bn/relic_bn_div.c b/src/bn/relic_bn_div.c
@@ -215,7 +215,11 @@ void bn_div_rem_dig(bn_t c, dig_t *d, const bn_t a, dig_t b) {
 		}
 
 		if (d != NULL) {
-			*d = r;
+			if (bn_sign(a) == RLC_NEG) {
+				*d = b - r;
+			} else {
+				*d = r;
+			}
 		}
 	}
 	RLC_CATCH_ANY {