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/*************************************************
* Engine Header File *
* (C) 1999-2006 The Botan Project *
*************************************************/
#ifndef BOTAN_ENGINE_H__
#define BOTAN_ENGINE_H__
#include <botan/base.h>
#include <botan/mutex.h>
#include <botan/pk_ops.h>
#include <botan/pow_mod.h>
#include <botan/basefilt.h>
#include <utility>
#include <map>
namespace Botan {
/*************************************************
* Engine Base Class *
*************************************************/
class Engine
{
public:
virtual IF_Operation* if_op(const BigInt&, const BigInt&, const BigInt&,
const BigInt&, const BigInt&, const BigInt&,
const BigInt&, const BigInt&) const;
virtual DSA_Operation* dsa_op(const DL_Group&, const BigInt&,
const BigInt&) const;
virtual NR_Operation* nr_op(const DL_Group&, const BigInt&,
const BigInt&) const;
virtual ELG_Operation* elg_op(const DL_Group&, const BigInt&,
const BigInt&) const;
virtual DH_Operation* dh_op(const DL_Group&, const BigInt&) const;
virtual Modular_Exponentiator* mod_exp(const BigInt&,
Power_Mod::Usage_Hints) const;
virtual Keyed_Filter* get_cipher(const std::string&, Cipher_Dir);
const BlockCipher* block_cipher(const std::string&) const;
const StreamCipher* stream_cipher(const std::string&) const;
const HashFunction* hash(const std::string&) const;
const MessageAuthenticationCode* mac(const std::string&) const;
const class S2K* s2k(const std::string&) const;
const class BlockCipherModePaddingMethod*
bc_pad(const std::string&) const;
void add_algorithm(BlockCipher*) const;
void add_algorithm(StreamCipher*) const;
void add_algorithm(HashFunction*) const;
void add_algorithm(MessageAuthenticationCode*) const;
void add_algorithm(class S2K*) const;
void add_algorithm(class BlockCipherModePaddingMethod*) const;
Engine();
virtual ~Engine();
private:
virtual BlockCipher* find_block_cipher(const std::string&) const;
virtual StreamCipher* find_stream_cipher(const std::string&) const;
virtual HashFunction* find_hash(const std::string&) const;
virtual MessageAuthenticationCode* find_mac(const std::string&) const;
virtual class S2K* find_s2k(const std::string&) const;
virtual class BlockCipherModePaddingMethod*
find_bc_pad(const std::string&) const;
Algorithm* get_algo(const std::string&, const std::string&) const;
void add_algo(const std::string&, Algorithm*) const;
typedef std::pair<Mutex*, std::map<std::string, Algorithm*> >
mutex_map_pair;
mutable std::map<std::string, mutex_map_pair> mappings;
};
namespace Engine_Core {
/*************************************************
* Get an operation from an Engine *
*************************************************/
Modular_Exponentiator* mod_exp(const BigInt&, Power_Mod::Usage_Hints);
IF_Operation* if_op(const BigInt&, const BigInt&, const BigInt&,
const BigInt&, const BigInt&, const BigInt&,
const BigInt&, const BigInt&);
DSA_Operation* dsa_op(const DL_Group&, const BigInt&, const BigInt&);
NR_Operation* nr_op(const DL_Group&, const BigInt&, const BigInt&);
ELG_Operation* elg_op(const DL_Group&, const BigInt&, const BigInt&);
DH_Operation* dh_op(const DL_Group&, const BigInt&);
}
}
#endif
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