X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fsec%2Futil.h;h=189e4ed715858734fcac66a270cbd69bfd3713fb;hb=94f23fc17d4a4a56e66d76e76f23ca35c176f3a6;hp=36ce22f883a26d5917ce23e573898fe6331a2e2d;hpb=f3a74d05913e05818c39b796968fda9277e213f9;p=bertos.git

diff --git a/bertos/sec/util.h b/bertos/sec/util.h
index 36ce22f8..189e4ed7 100644
--- a/bertos/sec/util.h
+++ b/bertos/sec/util.h
@@ -7,7 +7,7 @@
 
 /**
  * Purge local variables, by zeroing them.
- * 
+ *
  * This can be used to clear stack from intermediate results in crypto
  * calculations that might somehow be leaked.
  */
@@ -17,21 +17,21 @@
 /**
  * Convert a generic "password" (low-diffused) to a generic "key"
  * (high-diffused).
- * 
+ *
  * In common terminology, a "password" is a key with weak cryptographic
- * characteristics, such as commonly used password input by an user, 
+ * characteristics, such as commonly used password input by an user,
  * which are usually short and use only a few different characters from
  * the 0-255 byte range.
- * 
+ *
  * This function derives a strong key from the password using a one-way
  * process.
- * 
+ *
  * \note Uses PBKDF2 as key-derivation function, with a fixed salt that
  * changes for each Bertos project.
  */
 void password2key(const char *pwd, size_t pwd_len,
 				  uint8_t *key, size_t key_len);
-				  
+
 /**
  * Perform a bitwise xor between \a in and \a inout, and store
  * the result into \a inout.
@@ -59,7 +59,7 @@ INLINE void xor_block(uint8_t *out, const uint8_t *in1, const uint8_t* in2, size
 	const uint32_t *ibuf2 = (const uint32_t *)in2;
 	uint32_t *obuf = (uint32_t *)out;
 	size_t rem = (len & 3);
-	
+
 	len /= 4;
 	while (len--)
 		*obuf++ = *ibuf1++ ^ *ibuf2++;
@@ -67,7 +67,7 @@ INLINE void xor_block(uint8_t *out, const uint8_t *in1, const uint8_t* in2, size
 	in1 = (const uint8_t*)ibuf1;
 	in2 = (const uint8_t*)ibuf2;
 	out = (uint8_t*)obuf;
-	while (rem--)	
+	while (rem--)
 		*out++ = *in1++ ^ *in2++;
 }
 
@@ -80,14 +80,14 @@ INLINE void xor_block_const(uint8_t *out, const uint8_t *in, uint8_t k, size_t l
 	const uint32_t *ibuf = (const uint32_t *)in;
 	uint32_t *obuf = (uint32_t *)out;
 	size_t rem = (len & 3);
-	
+
 	len /= 4;
 	while (len--)
 		*obuf++ = *ibuf++ ^ k32;
 
 	in = (const uint8_t*)ibuf;
 	out = (uint8_t*)obuf;
-	while (rem--)	
+	while (rem--)
 		*out++ = *in++ ^ k;
 }