Changeset 17469

Timestamp:

08/10/12 18:20:45 (12 years ago)

Author:

nit

Message:

[titan] cleanup

File:

• titan/titan/rc4.h (modified) (2 diffs)

titan/titan/rc4.h

@@ -2 +2 @@
 #define RC4_H
 
-struct rc4ctx {
-    unsigned char S[256];
-    unsigned char i;
-    unsigned char j;
+struct rc4ctx
+{
+        unsigned char S[256];
+        unsigned char i;
+        unsigned char j;
 };
 
@@ -12 +13 @@
 void rc4init(struct rc4ctx *ctx, char *key, size_t keylen)
 {
-    int i;
-    unsigned char j = 0;
+        int i;
+        unsigned char j = 0;
 
-    for (i = 0; i < sizeof(ctx->S); i++) {
-        ctx->S[i] = i;
-    }
+        for(i = 0; i < sizeof(ctx->S); i++)
+        {
+                ctx->S[i] = i;
+        }
     
-    for (i = 0; i < sizeof(ctx->S); i++) {
-        j +=  (ctx->S[i] + key[i % keylen]);
-        SWAPRC4(ctx->S[i], ctx->S[j]);
-    }
+        for(i = 0; i < sizeof(ctx->S); i++)
+        {
+                j += (ctx->S[i] + key[i % keylen]);
+                SWAPRC4(ctx->S[i], ctx->S[j]);
+        }
 }
 
 void rc4crypt(struct rc4ctx *ctx, char *data, size_t len)
 {
-    unsigned int i;
+        unsigned int i;
 
-    ctx->i = 0;
-    ctx->j = 0;
+        ctx->i = 0;
+        ctx->j = 0;
 
-    for (i = 0; i < len; i++) {
-        unsigned char s;
+        for(i = 0; i < len; i++)
+        {
+                unsigned char s;
 
-        ctx->i++;
-        ctx->j += ctx->S[ctx->i];
+                ctx->i++;
+                ctx->j += ctx->S[ctx->i];
 
-        SWAPRC4(ctx->S[ctx->i], ctx->S[ctx->j]);
+                SWAPRC4(ctx->S[ctx->i], ctx->S[ctx->j]);
 
-        s = ctx->S[ctx->i] + ctx->S[ctx->j];
-        data[i] = data[i] ^ ctx->S[s];
-    }
+                s = ctx->S[ctx->i] + ctx->S[ctx->j];
+                data[i] = data[i] ^ ctx->S[s];
+        }
 }
 
 void rc4(char *data, size_t dlen, char *key, size_t klen)
 {
-    struct rc4ctx ctx;
-    rc4init(&ctx, key, klen);
-    rc4crypt(&ctx, data, dlen);
+        struct rc4ctx ctx;
+
+        rc4init(&ctx, key, klen);
+        rc4crypt(&ctx, data, dlen);
 }