Fix comparison bug caused by casting reported by cryptofuzz.

dfaranha · dfaranha · commit 7ed8e702db74 · 2021-07-16T01:40:46.000+02:00
diff --git a/src/dv/relic_dv_util.c b/src/dv/relic_dv_util.c
@@ -109,7 +109,7 @@ int dv_cmp(const dig_t *a, const dig_t *b, int size) {
 }
 
 int dv_cmp_const(const dig_t *a, const dig_t *b, int size) {
-	int r = 0;
+	dig_t r = 0;
 
 	for (int i = 0; i < size; i++) {
 		r |= a[i] ^ b[i];

Original file line number	Diff line number	Diff line change
`@@ -109,7 +109,7 @@ int dv_cmp(const dig_t a, const dig_t b, int size) {`
`109`	`109`	`}`
`110`	`110`
`111`	`111`	`int dv_cmp_const(const dig_t a, const dig_t b, int size) {`
`112`		`- int r = 0;`
	`112`	`+ dig_t r = 0;`
`113`	`113`
`114`	`114`	`for (int i = 0; i < size; i++) {`
`115`	`115`	`r \|= a[i] ^ b[i];`