kdf2.h

Go to the documentation of this file.

/*
* 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;
 
      std::unique_ptr<KDF> new_object() 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 hash the hash function to use
      */
      explicit KDF2(std::unique_ptr<HashFunction> hash) :
         m_hash(std::move(hash))
         {}
   private:
      std::unique_ptr<HashFunction> m_hash;
   };
 
}
 
#endif