/*

* PBKDF1

* (C) 1999-2007 Jack Lloyd

*

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

*/

#ifndef BOTAN_PBKDF1_H_

#define BOTAN_PBKDF1_H_

#include <botan/pbkdf.h>

#include <botan/hash.h>

BOTAN_FUTURE_INTERNAL_HEADER(pbkdf1.h)

namespace Botan {

/**

* PKCS #5 v1 PBKDF, aka PBKDF1

* Can only generate a key up to the size of the hash output.

* Unless needed for backwards compatibility, use PKCS5_PBKDF2

*/

class BOTAN_PUBLIC_API(2,0) PKCS5_PBKDF1 final : public PBKDF

   {

   public:

      /**

      * Create a PKCS #5 instance using the specified hash function.

      * @param hash pointer to a hash function object to use

      */

      explicit PKCS5_PBKDF1(HashFunction* hash) : m_hash(hash) {}

      std::string name() const override

         {

         return "PBKDF1(" + m_hash->name() + ")";

         }

      PBKDF* clone() const override

         {

         return new PKCS5_PBKDF1(m_hash->clone());

         }

      size_t pbkdf(uint8_t output_buf[], size_t output_len,

                           const std::string& passphrase,

                           const uint8_t salt[], size_t salt_len,

                           size_t iterations,

                           std::chrono::milliseconds msec) const override;

   private:

      std::unique_ptr<HashFunction> m_hash;

   };

}

#endif