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Diffstat (limited to 'src/libstate/engine.h')
| -rw-r--r-- | src/libstate/engine.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/src/libstate/engine.h b/src/libstate/engine.h new file mode 100644 index 000000000..af0fb67e1 --- /dev/null +++ b/src/libstate/engine.h @@ -0,0 +1,209 @@ +/************************************************* +* Engine Header File * +* (C) 1999-2007 Jack Lloyd * +*************************************************/ + +#ifndef BOTAN_ENGINE_H__ +#define BOTAN_ENGINE_H__ + +#include <botan/base.h> +#include <botan/mutex.h> +#include <botan/pow_mod.h> +#include <botan/basefilt.h> +#include <botan/enums.h> +#include <utility> +#include <map> + +#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY) + #include <botan/if_op.h> +#endif + +#if defined(BOTAN_HAS_DSA) + #include <botan/dsa_op.h> +#endif + +#if defined(BOTAN_HAS_DIFFIE_HELLMAN) + #include <botan/dh_op.h> +#endif + +#if defined(BOTAN_HAS_NYBERG_RUEPPEL) + #include <botan/nr_op.h> +#endif + +#if defined(BOTAN_HAS_ELGAMAL) + #include <botan/elg_op.h> +#endif + +#if defined(BOTAN_HAS_ECDSA) + #include <botan/ecdsa_op.h> + #include <botan/ec_dompar.h> +#endif + +#if defined(BOTAN_HAS_ECKAEG) + #include <botan/eckaeg_op.h> + #include <botan/ec_dompar.h> +#endif + +namespace Botan { + +/************************************************* +* Engine Base Class * +*************************************************/ +class BOTAN_DLL Engine + { + public: + template<typename T> + class BOTAN_DLL Algorithm_Cache + { + public: + virtual T* get(const std::string&) const = 0; + virtual void add(T* algo, const std::string& = "") const = 0; + virtual ~Algorithm_Cache() {} + }; + +#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY) + virtual IF_Operation* if_op(const BigInt&, const BigInt&, const BigInt&, + const BigInt&, const BigInt&, const BigInt&, + const BigInt&, const BigInt&) const + { return 0; } +#endif + +#if defined(BOTAN_HAS_DSA) + virtual DSA_Operation* dsa_op(const DL_Group&, const BigInt&, + const BigInt&) const + { return 0; } +#endif + +#if defined(BOTAN_HAS_NYBERG_RUEPPEL) + virtual NR_Operation* nr_op(const DL_Group&, const BigInt&, + const BigInt&) const + { return 0; } +#endif + +#if defined(BOTAN_HAS_ELGAMAL) + virtual ELG_Operation* elg_op(const DL_Group&, const BigInt&, + const BigInt&) const + { return 0; } +#endif + +#if defined(BOTAN_HAS_DIFFIE_HELLMAN) + virtual DH_Operation* dh_op(const DL_Group&, const BigInt&) const + { return 0; } +#endif + +#if defined(BOTAN_HAS_ECDSA) + virtual ECDSA_Operation* ecdsa_op(const EC_Domain_Params&, + const BigInt&, + const PointGFp&) const + { return 0; } +#endif + +#if defined(BOTAN_HAS_ECKAEG) + virtual ECKAEG_Operation* eckaeg_op(const EC_Domain_Params&, + const BigInt&, + const PointGFp&) const + { return 0; } +#endif + + virtual Modular_Exponentiator* mod_exp(const BigInt&, + Power_Mod::Usage_Hints) const + { return 0; } + + 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; + + template<typename T> + const T* lookup_algo(const Algorithm_Cache<T>* cache, + const std::string& name, + const Engine* engine, + T* (Engine::*find)(const std::string&) const) const + { + T* algo = cache->get(name); + if(!algo) + { + algo = (engine->*find)(name); + if(algo) + cache->add(algo, name); + } + return algo; + } + + Algorithm_Cache<BlockCipher>* cache_of_bc; + Algorithm_Cache<StreamCipher>* cache_of_sc; + Algorithm_Cache<HashFunction>* cache_of_hf; + Algorithm_Cache<MessageAuthenticationCode>* cache_of_mac; + Algorithm_Cache<BlockCipherModePaddingMethod>* cache_of_bc_pad; + Algorithm_Cache<S2K>* cache_of_s2k; + }; + +namespace Engine_Core { + +/************************************************* +* Get an operation from an Engine * +*************************************************/ +Modular_Exponentiator* mod_exp(const BigInt&, Power_Mod::Usage_Hints); + +#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY) +IF_Operation* if_op(const BigInt&, const BigInt&, const BigInt&, + const BigInt&, const BigInt&, const BigInt&, + const BigInt&, const BigInt&); +#endif + +#if defined(BOTAN_HAS_DSA) +DSA_Operation* dsa_op(const DL_Group&, const BigInt&, const BigInt&); +#endif + +#if defined(BOTAN_HAS_NYBERG_RUEPPEL) +NR_Operation* nr_op(const DL_Group&, const BigInt&, const BigInt&); +#endif + +#if defined(BOTAN_HAS_ELGAMAL) +ELG_Operation* elg_op(const DL_Group&, const BigInt&, const BigInt&); +#endif + +#if defined(BOTAN_HAS_DIFFIE_HELLMAN) +DH_Operation* dh_op(const DL_Group&, const BigInt&); +#endif + +#if defined(BOTAN_HAS_ECDSA) +ECDSA_Operation* ecdsa_op(const EC_Domain_Params& dom_pars, + const BigInt& priv_key, + const PointGFp& pub_key); +#endif + +#if defined(BOTAN_HAS_ECKAEG) +ECKAEG_Operation* eckaeg_op(const EC_Domain_Params& dom_pars, + const BigInt& priv_key, + const PointGFp& pub_key); +#endif + +} + +} + +#endif |