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1.1 misho 1: /* 2: * Copyright (C) 2016 Andreas Steffen 3: * HSR Hochschule fuer Technik Rapperswil 4: * 5: * This program is free software; you can redistribute it and/or modify it 6: * under the terms of the GNU General Public License as published by the 7: * Free Software Foundation; either version 2 of the License, or (at your 8: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. 9: * 10: * This program is distributed in the hope that it will be useful, but 11: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 12: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13: * for more details. 14: */ 15: 16: /** 17: * @defgroup chapoly_xof chapoly_xof 18: * @{ @ingroup chapoly 19: */ 20: 21: #ifndef CHAPOLY_XOF_H_ 22: #define CHAPOLY_XOF_H_ 23: 24: #include <crypto/aead.h> 25: 26: typedef struct chapoly_xof_t chapoly_xof_t; 27: 28: /** 29: * ChaCha20 XOF implementation 30: * 31: * Based on RFC 7539 ChaCha20 stream initialized with block counter = 1 32: */ 33: struct chapoly_xof_t { 34: 35: /** 36: * Generic xof_t interface for this Extended Output Function (XOF). 37: */ 38: xof_t xof_interface; 39: }; 40: 41: /** 42: * Create a chapoly_xof instance. 43: * 44: * @param algorithm XOF_CHACHA20 45: * @return chapoly_xof_t object, NULL if not supported 46: */ 47: chapoly_xof_t *chapoly_xof_create(ext_out_function_t algorithm); 48: 49: #endif /** CHAPOLY_XOF_H_ @}*/