GH#846: fix infinite loop with RC4 for data larger than 4GB

Legrandin · Legrandin · commit f979abfa24ba · 2025-03-10T15:24:19.000+01:00
diff --git a/src/ARC4.c b/src/ARC4.c
@@ -37,7 +37,7 @@ typedef struct
 
 EXPORT_SYM int ARC4_stream_encrypt(stream_state *rc4State, const uint8_t in[], uint8_t out[], size_t len)
 {
-    unsigned i;
+    size_t i;
     unsigned x=rc4State->x, y=rc4State->y;
 
     for (i=0; i<len; i++)

Original file line number	Diff line number	Diff line change
`@@ -37,7 +37,7 @@ typedef struct`
`37`	`37`
`38`	`38`	`EXPORT_SYM int ARC4_stream_encrypt(stream_state *rc4State, const uint8_t in[], uint8_t out[], size_t len)`
`39`	`39`	`{`
`40`		`- unsigned i;`
	`40`	`+ size_t i;`
`41`	`41`	`unsigned x=rc4State->x, y=rc4State->y;`
`42`	`42`
`43`	`43`	`for (i=0; i<len; i++)`