/************************************************* * Algorithm Lookup Header File * * (C) 1999-2007 Jack Lloyd * *************************************************/ #ifndef BOTAN_LOOKUP_H__ #define BOTAN_LOOKUP_H__ #include #include #include #include #include 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&); /************************************************* * 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