switch idea invmod too big to subtraction

2015-09-28 15:24:32 -07:00
parent 292e05dc75
commit 28912621ec
1 changed files with 2 additions and 1 deletions
--- a/wolfcrypt/src/idea.c
+++ b/wolfcrypt/src/idea.c
@ -106,7 +106,8 @@ static INLINE word16 idea_invmod(word16 x)
        d += IDEA_MODULO;

    /* d must be < IDEA_MODULO */
-    d %= IDEA_MODULO;
+    while (d >= (int)IDEA_MODULO)
+        d -= IDEA_MODULO;

    return (word16)(d & IDEA_MASK);
 }