From: asterix <asterix@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Wed, 31 Jan 2007 18:04:15 +0000 (+0000)
Subject: Write md2_end function
X-Git-Tag: 1.0.0~490
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=b57958545b3d65da27c87935f415712fc78b6d3a;p=bertos.git

Write md2_end function


git-svn-id: https://src.develer.com/svnoss/bertos/trunk@751 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/algos/md2.c b/algos/md2.c
index 502cdeeb..f99434b3 100755
--- a/algos/md2.c
+++ b/algos/md2.c
@@ -13,8 +13,8 @@
 
 /*#*
  *#* $Log$
- *#* Revision 1.6  2007/01/31 16:53:30  asterix
- *#* Typo.
+ *#* Revision 1.7  2007/01/31 18:04:15  asterix
+ *#* Write md2_end function
  *#*
  *#* Revision 1.4  2007/01/31 13:51:57  asterix
  *#* Write md2_compute function.
@@ -178,9 +178,32 @@ void md2_update(Md2Context *context, void *block_in, size_t block_len)
 	
 }
 /**
- * 
+ * Ends MD2 message digest operation, writing the message digest and cleaning context.
  */
 void md2_end(Md2Context *context, void *msg_digest)
 {
+	/*
+	 * Pad remaning context buffer.
+	 */
+	md2_pad(context->buffer, CONFIG_MD2_BLOCK_LEN - context->counter);
+
+	/*
+	 * Update context and checksum.
+	 */
+	md2_update(context, context->buffer, CONFIG_MD2_BLOCK_LEN);
+		
+	md2_update(context, context->checksum, CONFIG_MD2_BLOCK_LEN);
 
+	/*
+	 * Copy first CONFIG_MD2_BLOCK_LEN byte of context's state
+	 * in msg_digest. The msg_digest is the message digest of
+	 * MD2 algorithm.
+	 */
+	memcpy(msg_digest, context->state, CONFIG_MD2_BLOCK_LEN);
+	
+	/*
+	 * Clean the context.
+	 */
+	memset(context, 0, sizeof(context));
+  
 }