X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=algos%2Fmd2.h;h=0729218626ee08d1327763ded6c0c49692eef755;hb=5f3952176a4e9a00ca8dd5ec4a6b994958f89e0a;hp=f47ca788bc49e76dbb88c24dd0e366067217fd10;hpb=8a9e503866fea71f11ba1d061338f410fd73b7f5;p=bertos.git

diff --git a/algos/md2.h b/algos/md2.h
old mode 100755
new mode 100644
index f47ca788..07292186
--- a/algos/md2.h
+++ b/algos/md2.h
@@ -7,12 +7,38 @@
  *
  * \brief MD2 Message-Digest algorithm.
  *
+ * The algorithm takes as input a message of arbitrary length and produces
+ * as output a 128-bit message digest of the input.
+ * It is conjectured that it is computationally infeasible to produce
+ * two messages having the same message digest, or to produce any
+ * message having a given prespecified target message digest.
+ *
+ *
+ *
  * \version $Id$
  * \author Daniele Basile <asterix@develer.com>
  */
 
 /*#*
  *#* $Log$
+ *#* Revision 1.7  2007/02/15 13:29:49  asterix
+ *#* Add MD2_DIGEST_LEN macro.
+ *#*
+ *#* Revision 1.6  2007/02/02 18:15:31  asterix
+ *#* Add function MD2_test. Fix bug in md2_update function.
+ *#*
+ *#* Revision 1.5  2007/02/02 15:37:45  asterix
+ *#* Change md2_end prototype. Remove a unneeded memcpy in md2_end. Add comments.
+ *#*
+ *#* Revision 1.4  2007/01/31 13:53:36  asterix
+ *#* Define COMPUTE_ARRAY_LEN.
+ *#*
+ *#* Revision 1.3  2007/01/31 11:16:48  asterix
+ *#* Defined constants for algorithm compute
+ *#*
+ *#* Revision 1.2  2007/01/30 17:31:44  asterix
+ *#* Add function prototypes.
+ *#*
  *#* Revision 1.1  2007/01/30 15:53:26  batt
  *#* Add first md2 skel.
  *#*
@@ -24,16 +50,24 @@
 #include <cfg/compiler.h>
 #include <appconfig.h>
 
+#define NUM_COMPUTE_ROUNDS 18                        ///< Number of compute rounds.
+#define COMPUTE_ARRAY_LEN  CONFIG_MD2_BLOCK_LEN * 3     ///< Lenght of compute array.
+#define MD2_DIGEST_LEN CONFIG_MD2_BLOCK_LEN
 /**
  * Context for MD2 computation.
  */
 typedef struct Md2Context
 {
-	uint8_t buffer[CONFIG_MD2_BLOBK_LEN];   ///< Input buffer.
-	uint8_t state[CONFIG_MD2_BLOBK_LEN];    ///< Current state buffer.
-	uint8_t checksum[CONFIG_MD2_BLOBK_LEN]; ///< Checksum.
+	uint8_t buffer[CONFIG_MD2_BLOCK_LEN];   ///< Input buffer.
+	uint8_t state[CONFIG_MD2_BLOCK_LEN];    ///< Current state buffer.
+	uint8_t checksum[CONFIG_MD2_BLOCK_LEN]; ///< Checksum.
 	size_t counter;                         ///< Counter of remaining bytes.
+
 } Md2Context;
 
+void md2_init(Md2Context *context);
+void md2_update(Md2Context *context, const void *block_in, size_t block_len);
+uint8_t *md2_end(Md2Context *context);
+bool md2_test(void);
 
 #endif /* ALGOS_MD2_H */