/* * EME Base Class * (C) 1999-2008 Jack Lloyd * * Botan is released under the Simplified BSD License (see license.txt) */ #include #include #if defined(BOTAN_HAS_EME_OAEP) #include #endif #if defined(BOTAN_HAS_EME_PKCS1v15) #include #endif #if defined(BOTAN_HAS_EME_RAW) #include #endif namespace Botan { EME* get_eme(const std::string& algo_spec) { #if defined(BOTAN_HAS_EME_RAW) if(algo_spec == "Raw") return new EME_Raw; #endif #if defined(BOTAN_HAS_EME_PKCS1v15) if(algo_spec == "PKCS1v15" || algo_spec == "EME-PKCS1-v1_5") return new EME_PKCS1v15; #endif #if defined(BOTAN_HAS_EME_OAEP) SCAN_Name req(algo_spec); if(req.algo_name() == "OAEP" || req.algo_name() == "EME-OAEP" || req.algo_name() == "EME1") { if(req.arg_count() == 1 || (req.arg_count() == 2 && req.arg(1) == "MGF1")) { if(auto hash = HashFunction::create(req.arg(0))) return new OAEP(hash.release()); } } #endif throw Algorithm_Not_Found(algo_spec); } /* * Encode a message */ secure_vector EME::encode(const byte msg[], size_t msg_len, size_t key_bits, RandomNumberGenerator& rng) const { return pad(msg, msg_len, key_bits, rng); } /* * Encode a message */ secure_vector EME::encode(const secure_vector& msg, size_t key_bits, RandomNumberGenerator& rng) const { return pad(msg.data(), msg.size(), key_bits, rng); } }