Add new top-level algorithm which provides basic functionality: name

query, clearing, and cloning. Applies to ciphers, hashes, MACs, and
PBKDFs. May extend to KDFs later as well.

A single combined hierarchy in particular will make the algo_factory
much simpler.

1 files changed, 3 insertions, 12 deletions

diff --git a/src/hash/hash.h b/src/hash/hash.h
index af411fb87..366c929b5 100644
--- a/src/hash/hash.h
+++ b/src/hash/hash.h
@@ -9,6 +9,7 @@
 #define BOTAN_HASH_FUNCTION_BASE_CLASS_H__
 
 #include <botan/buf_comp.h>
+#include <botan/algo_base.h>
 #include <string>
 
 namespace Botan {
@@ -16,7 +17,8 @@ namespace Botan {
 /**
 * This class represents hash function (message digest) objects
 */
-class BOTAN_DLL HashFunction : public BufferedComputation
+class BOTAN_DLL HashFunction : public Buffered_Computation,
+                               public Algorithm
    {
    public:
       /**
@@ -25,21 +27,10 @@ class BOTAN_DLL HashFunction : public BufferedComputation
       virtual HashFunction* clone() const = 0;
 
       /**
-      * Get the name of this algorithm.
-      * @return name of this algorithm
-      */
-      virtual std::string name() const = 0;
-
-      /**
       * The hash block size as defined for this algorithm
       */
       virtual size_t hash_block_size() const { return 0; }
 
-      /**
-      * Reset the internal state of this object.
-      */
-      virtual void clear() = 0;
-
    private:
       HashFunction& operator=(const HashFunction&);
    };