Annotation of embedaddon/strongswan/src/libstrongswan/crypto/nonce_gen.h, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (C) 2012 Adrian-Ken Rueegsegger
! 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 nonce_gen nonce_gen
! 18: * @{ @ingroup crypto
! 19: */
! 20:
! 21: #ifndef NONCE_GEN_H_
! 22: #define NONCE_GEN_H_
! 23:
! 24: typedef struct nonce_gen_t nonce_gen_t;
! 25:
! 26: #include <library.h>
! 27:
! 28: /**
! 29: * Generic interface for nonce generators.
! 30: */
! 31: struct nonce_gen_t {
! 32:
! 33: /**
! 34: * Generates a nonce and writes it into the buffer.
! 35: *
! 36: * @param size size of nonce in bytes
! 37: * @param buffer pointer where the generated nonce will be written
! 38: * @return TRUE if nonce allocation was successful, FALSE otherwise
! 39: */
! 40: bool (*get_nonce)(nonce_gen_t *this, size_t size,
! 41: uint8_t *buffer) __attribute__((warn_unused_result));
! 42:
! 43: /**
! 44: * Generates a nonce and allocates space for it.
! 45: *
! 46: * @param size size of nonce in bytes
! 47: * @param chunk chunk which will hold the generated nonce
! 48: * @return TRUE if nonce allocation was successful, FALSE otherwise
! 49: */
! 50: bool (*allocate_nonce)(nonce_gen_t *this, size_t size,
! 51: chunk_t *chunk) __attribute__((warn_unused_result));
! 52:
! 53: /**
! 54: * Destroys a nonce generator object.
! 55: */
! 56: void (*destroy)(nonce_gen_t *this);
! 57: };
! 58:
! 59: #endif /** NONCE_GEN_H_ @}*/
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