Document hash functions.

3 files changed, 4 insertions, 4 deletions

diff --git a/crypto/md2/md2.h b/crypto/md2/md2.h
index 0d3592506c..582bffb859 100644
--- a/crypto/md2/md2.h
+++ b/crypto/md2/md2.h
@@ -81,9 +81,9 @@ typedef struct MD2state_st
 
 const char *MD2_options(void);
 void MD2_Init(MD2_CTX *c);
-void MD2_Update(MD2_CTX *c, register unsigned char *data, unsigned long len);
+void MD2_Update(MD2_CTX *c, const unsigned char *data, unsigned long len);
 void MD2_Final(unsigned char *md, MD2_CTX *c);
-unsigned char *MD2(unsigned char *d, unsigned long n,unsigned char *md);
+unsigned char *MD2(const unsigned char *d, unsigned long n,unsigned char *md);
 #ifdef  __cplusplus
 }
 #endif
diff --git a/crypto/md2/md2_dgst.c b/crypto/md2/md2_dgst.c
index c7d8d6aef5..b6c2f15c3c 100644
--- a/crypto/md2/md2_dgst.c
+++ b/crypto/md2/md2_dgst.c
@@ -123,7 +123,7 @@ void MD2_Init(MD2_CTX *c)
 	memset(c->data,0,MD2_BLOCK);
 	}
 
-void MD2_Update(MD2_CTX *c, register unsigned char *data, unsigned long len)
+void MD2_Update(MD2_CTX *c, const unsigned char *data, unsigned long len)
 	{
 	register UCHAR *p;
 
diff --git a/crypto/md2/md2_one.c b/crypto/md2/md2_one.c
index 7157299d95..b12c37ce4d 100644
--- a/crypto/md2/md2_one.c
+++ b/crypto/md2/md2_one.c
@@ -63,7 +63,7 @@
 /* This is a separate file so that #defines in cryptlib.h can
  * map my MD functions to different names */
 
-unsigned char *MD2(unsigned char *d, unsigned long n, unsigned char *md)
+unsigned char *MD2(const unsigned char *d, unsigned long n, unsigned char *md)
 	{
 	MD2_CTX c;
 	static unsigned char m[MD2_DIGEST_LENGTH];