/*************************************************
* Algorithm Identifier Header File               *
* (C) 1999-2007 Jack Lloyd                       *
*************************************************/

#ifndef BOTAN_ALGORITHM_IDENTIFIER_H__
#define BOTAN_ALGORITHM_IDENTIFIER_H__

#include <botan/asn1_int.h>
#include <botan/asn1_oid.h>
#include <string>

namespace Botan {

/*************************************************
* Algorithm Identifier                           *
*************************************************/
class BOTAN_DLL AlgorithmIdentifier : public ASN1_Object
   {
   public:
      enum Encoding_Option { USE_NULL_PARAM };

      void encode_into(class DER_Encoder&) const;
      void decode_from(class BER_Decoder&);

      AlgorithmIdentifier() {}
      AlgorithmIdentifier(const OID&, Encoding_Option);
      AlgorithmIdentifier(const std::string&, Encoding_Option);

      AlgorithmIdentifier(const OID&, const MemoryRegion<byte>&);
      AlgorithmIdentifier(const std::string&, const MemoryRegion<byte>&);

      OID oid;
      SecureVector<byte> parameters;
   };

}

#endif