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/**
* Dynamically Loaded Engine
* (C) 2010 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_DYN_LOADED_ENGINE_H__
#define BOTAN_DYN_LOADED_ENGINE_H__
#include <botan/engine.h>
namespace Botan {
/**
* Dynamically_Loaded_Engine just proxies the requests to the underlying
* Engine object, and handles load/unload details
*/
class BOTAN_DLL Dynamically_Loaded_Engine : public Engine
{
public:
/**
* @param lib_path full pathname to DLL to load
*/
Dynamically_Loaded_Engine(const std::string& lib_path);
Dynamically_Loaded_Engine(const Dynamically_Loaded_Engine&) = delete;
Dynamically_Loaded_Engine& operator=(const Dynamically_Loaded_Engine&) = delete;
~Dynamically_Loaded_Engine();
std::string provider_name() const { return engine->provider_name(); }
BlockCipher* find_block_cipher(const SCAN_Name& algo_spec,
Algorithm_Factory& af) const
{
return engine->find_block_cipher(algo_spec, af);
}
StreamCipher* find_stream_cipher(const SCAN_Name& algo_spec,
Algorithm_Factory& af) const
{
return engine->find_stream_cipher(algo_spec, af);
}
HashFunction* find_hash(const SCAN_Name& algo_spec,
Algorithm_Factory& af) const
{
return engine->find_hash(algo_spec, af);
}
MessageAuthenticationCode* find_mac(const SCAN_Name& algo_spec,
Algorithm_Factory& af) const
{
return engine->find_mac(algo_spec, af);
}
PBKDF* find_pbkdf(const SCAN_Name& algo_spec,
Algorithm_Factory& af) const
{
return engine->find_pbkdf(algo_spec, af);
}
Modular_Exponentiator* mod_exp(const BigInt& n,
Power_Mod::Usage_Hints hints) const
{
return engine->mod_exp(n, hints);
}
Keyed_Filter* get_cipher(const std::string& algo_spec,
Cipher_Dir dir,
Algorithm_Factory& af)
{
return engine->get_cipher(algo_spec, dir, af);
}
PK_Ops::Key_Agreement*
get_key_agreement_op(const Private_Key& key) const
{
return engine->get_key_agreement_op(key);
}
PK_Ops::Signature*
get_signature_op(const Private_Key& key) const
{
return engine->get_signature_op(key);
}
PK_Ops::Verification*
get_verify_op(const Public_Key& key) const
{
return engine->get_verify_op(key);
}
PK_Ops::Encryption*
get_encryption_op(const Public_Key& key) const
{
return engine->get_encryption_op(key);
}
PK_Ops::Decryption*
get_decryption_op(const Private_Key& key) const
{
return engine->get_decryption_op(key);
}
private:
class Dynamically_Loaded_Library* lib;
Engine* engine;
};
}
#endif
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