xnu-4903.270.47.tar.gz

[apple/xnu.git] / bsd / crypto / rc4 / rc4.c

diff --git a/bsd/crypto/rc4/rc4.c b/bsd/crypto/rc4/rc4.c
index 2154cc404396b8f6a4c2bd02d1427c10a248841d..da9559fea6738bc4069a5afe70c026f388795760 100644 (file)
--- a/bsd/crypto/rc4/rc4.c
+++ b/bsd/crypto/rc4/rc4.c
@@ -1,10 +1,9 @@
-
 /*
  * rc4.c
  *
  * Copyright (c) 1996-2000 Whistle Communications, Inc.
  * All rights reserved.
- * 
+ *
  * Subject to the following obligations and disclaimer of warranty, use and
  * redistribution of this software, in source or object code forms, with or
  * without modifications are expressly permitted by Whistle Communications;
@@ -15,7 +14,7 @@
  *    Communications, Inc. trademarks, including the mark "WHISTLE
  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
  *    such appears in the above copyright notice or in the software.
- * 
+ *
  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
@@ -61,14 +60,15 @@ rc4_init(struct rc4_state *const state, const u_char *key, int keylen)
        int i;
 
        /* Initialize state with identity permutation */
-       for (i = 0; i < 256; i++)
-               state->perm[i] = (u_char)i; 
+       for (i = 0; i < 256; i++) {
+               state->perm[i] = (u_char)i;
+       }
        state->index1 = 0;
        state->index2 = 0;
-  
+
        /* Randomize the permutation using key data */
        for (j = i = 0; i < 256; i++) {
-               j += state->perm[i] + key[i % keylen]; 
+               j += state->perm[i] + key[i % keylen];
                swap_bytes(&state->perm[i], &state->perm[j]);
        }
 }
@@ -81,13 +81,12 @@ rc4_init(struct rc4_state *const state, const u_char *key, int keylen)
  */
 void
 rc4_crypt(struct rc4_state *const state,
-       const u_char *inbuf, u_char *outbuf, int buflen)
+    const u_char *inbuf, u_char *outbuf, int buflen)
 {
        int i;
        u_char j;
 
        for (i = 0; i < buflen; i++) {
-
                /* Update modification indicies */
                state->index1++;
                state->index2 += state->perm[state->index1];
@@ -101,4 +100,3 @@ rc4_crypt(struct rc4_state *const state,
                outbuf[i] = inbuf[i] ^ state->perm[j];
        }
 }
-