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/*************************************************
* Algorithm Lookup Header File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#ifndef BOTAN_LOOKUP_H__
#define BOTAN_LOOKUP_H__
#include <botan/base.h>
#include <botan/filters.h>
#include <botan/mode_pad.h>
#include <botan/pk_util.h>
#include <botan/s2k.h>
namespace Botan {
/*************************************************
* Retrieve an object from the lookup table *
*************************************************/
BOTAN_DLL const BlockCipher* retrieve_block_cipher(const std::string&);
BOTAN_DLL const StreamCipher* retrieve_stream_cipher(const std::string&);
BOTAN_DLL const HashFunction* retrieve_hash(const std::string&);
BOTAN_DLL const MessageAuthenticationCode* retrieve_mac(const std::string&);
BOTAN_DLL const S2K* retrieve_s2k(const std::string&);
BOTAN_DLL const BlockCipherModePaddingMethod*
retrieve_bc_pad(const std::string&);
/*************************************************
* Get an algorithm object *
*************************************************/
BOTAN_DLL BlockCipher* get_block_cipher(const std::string&);
BOTAN_DLL StreamCipher* get_stream_cipher(const std::string&);
BOTAN_DLL HashFunction* get_hash(const std::string&);
BOTAN_DLL MessageAuthenticationCode* get_mac(const std::string&);
BOTAN_DLL S2K* get_s2k(const std::string&);
BOTAN_DLL const BlockCipherModePaddingMethod* get_bc_pad(const std::string&);
/*************************************************
* Get an EMSA/EME/KDF/MGF function *
*************************************************/
BOTAN_DLL EME* get_eme(const std::string&);
BOTAN_DLL EMSA* get_emsa(const std::string&);
BOTAN_DLL MGF* get_mgf(const std::string&);
BOTAN_DLL KDF* get_kdf(const std::string&);
/*************************************************
* Get a cipher object *
*************************************************/
BOTAN_DLL Keyed_Filter* get_cipher(const std::string&,
const SymmetricKey&,
const InitializationVector&,
Cipher_Dir);
BOTAN_DLL Keyed_Filter* get_cipher(const std::string&,
const SymmetricKey&,
Cipher_Dir);
BOTAN_DLL Keyed_Filter* get_cipher(const std::string&, Cipher_Dir);
/*************************************************
* Check to see if an algorithm exists *
*************************************************/
BOTAN_DLL bool have_algorithm(const std::string&);
BOTAN_DLL bool have_block_cipher(const std::string&);
BOTAN_DLL bool have_stream_cipher(const std::string&);
BOTAN_DLL bool have_hash(const std::string&);
BOTAN_DLL bool have_mac(const std::string&);
/*************************************************
* Dereference an alias *
*************************************************/
BOTAN_DLL std::string deref_alias(const std::string&);
/*************************************************
* Query information about an algorithm *
*************************************************/
BOTAN_DLL u32bit block_size_of(const std::string&);
BOTAN_DLL u32bit output_length_of(const std::string&);
BOTAN_DLL bool valid_keylength_for(u32bit, const std::string&);
BOTAN_DLL u32bit min_keylength_of(const std::string&);
BOTAN_DLL u32bit max_keylength_of(const std::string&);
BOTAN_DLL u32bit keylength_multiple_of(const std::string&);
}
#endif
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