/*

* X9.42 PRF

* (C) 1999-2007 Jack Lloyd

*

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

*/

#ifndef BOTAN_ANSI_X942_PRF_H_

#define BOTAN_ANSI_X942_PRF_H_

#include <botan/asn1_obj.h>

#include <botan/kdf.h>

namespace Botan {

/**

* PRF from ANSI X9.42

*/

class X942_PRF final : public KDF {

   public:

      std::string name() const override;

      std::unique_ptr<KDF> new_object() const override { return std::make_unique<X942_PRF>(m_key_wrap_oid); }

      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;

      explicit X942_PRF(std::string_view oid) : m_key_wrap_oid(OID::from_string(oid)) {}

      explicit X942_PRF(const OID& oid) : m_key_wrap_oid(oid) {}

   private:

      OID m_key_wrap_oid;

};

}  // namespace Botan

#endif