/*

* KDF2

* (C) 1999-2007 Jack Lloyd

*

* Botan is released under the Simplified BSD License (see license.txt)

*/

#ifndef BOTAN_KDF2_H_

#define BOTAN_KDF2_H_

#include <botan/kdf.h>

#include <botan/hash.h>

namespace Botan {

/**

* KDF2, from IEEE 1363

*/

class KDF2 final : public KDF

   {

   public:

      std::string name() const override;

      KDF* clone() const override;

      void kdf(uint8_t key[], size_t key_len,

               const uint8_t secret[], size_t secret_len,

               const uint8_t salt[], size_t salt_len,

               const uint8_t label[], size_t label_len) const override;

      /**

      * @param h hash function to use

      */

      explicit KDF2(HashFunction* h) : m_hash(h) {}

   private:

      std::unique_ptr<HashFunction> m_hash;

   };

}

#endif