/*

* EMSA-Raw

* (C) 1999-2007 Jack Lloyd

*

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

*/

#ifndef BOTAN_EMSA_RAW_H_

#define BOTAN_EMSA_RAW_H_

#include <botan/internal/emsa.h>

namespace Botan {

/**

* EMSA-Raw - sign inputs directly

* Don't use this unless you know what you are doing.

*/

class EMSA_Raw final : public EMSA

   {

   public:

      std::unique_ptr<EMSA> new_object() override { return std::make_unique<EMSA_Raw>(); }

      explicit EMSA_Raw(size_t expected_hash_size = 0) :

         m_expected_size(expected_hash_size) {}

      std::string name() const override;

      bool requires_message_recovery() const override { return false; }

   private:

      void update(const uint8_t[], size_t) override;

      secure_vector<uint8_t> raw_data() override;

      secure_vector<uint8_t> encoding_of(const secure_vector<uint8_t>&, size_t,

                                         RandomNumberGenerator&) override;

      bool verify(const secure_vector<uint8_t>&,

                  const secure_vector<uint8_t>&,

                  size_t) override;

      const size_t m_expected_size;

      secure_vector<uint8_t> m_message;

   };

}

#endif