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/**
* Algorithm Factory
* (C) 2008 Jack Lloyd
*/
#ifndef BOTAN_ALGORITHM_FACTORY_H__
#define BOTAN_ALGORITHM_FACTORY_H__
#include <botan/algo_cache.h>
#include <botan/scan_name.h>
#include <botan/mutex.h>
#include <string>
#include <vector>
#include <map>
namespace Botan {
/**
* Forward declarations (don't need full definitions here)
*/
class BlockCipher;
class StreamCipher;
class HashFunction;
class MessageAuthenticationCode;
/**
* Algorithm Factory
*/
class BOTAN_DLL Algorithm_Factory
{
public:
Algorithm_Factory(Mutex_Factory& mf);
~Algorithm_Factory();
void add_engine(class Engine*);
class BOTAN_DLL Engine_Iterator
{
public:
class Engine* next() { return af.get_engine_n(n++); }
Engine_Iterator(const Algorithm_Factory& a) : af(a) { n = 0; }
private:
const Algorithm_Factory& af;
u32bit n;
};
friend class Engine_Iterator;
std::vector<std::string> providers_of(const std::string& algo_spec);
// Block cipher operations
const BlockCipher* prototype_block_cipher(const SCAN_Name& request);
BlockCipher* make_block_cipher(const SCAN_Name& request);
void add_block_cipher(BlockCipher* hash, const std::string& provider);
// Stream cipher operations
const StreamCipher* prototype_stream_cipher(const SCAN_Name& request);
StreamCipher* make_stream_cipher(const SCAN_Name& request);
void add_stream_cipher(StreamCipher* hash, const std::string& provider);
// Hash function operations
const HashFunction* prototype_hash_function(const SCAN_Name& request);
HashFunction* make_hash_function(const SCAN_Name& request);
void add_hash_function(HashFunction* hash, const std::string& provider);
// MAC operations
const MessageAuthenticationCode* prototype_mac(const SCAN_Name& request);
MessageAuthenticationCode* make_mac(const SCAN_Name& request);
void add_mac(MessageAuthenticationCode* mac,
const std::string& provider);
private:
class Engine* get_engine_n(u32bit) const;
std::vector<class Engine*> engines;
Algorithm_Cache<BlockCipher> block_cipher_cache;
Algorithm_Cache<StreamCipher> stream_cipher_cache;
Algorithm_Cache<HashFunction> hash_cache;
Algorithm_Cache<MessageAuthenticationCode> mac_cache;
};
}
#endif
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