4 * This file is part of BeRTOS.
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21 * library without restriction. Specifically, if other files instantiate
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29 * Copyright 2007 Develer S.r.l. (http://www.develer.com/);
33 * \brief API function for to manage entropy pool.
37 * \author Daniele Basile <asterix@develer.com>
42 *#* Revision 1.11 2007/02/15 13:54:26 asterix
43 *#* Rename randpool_getN in randpool_get. Fix bug in randpool_get.
45 *#* Revision 1.10 2007/02/15 13:40:42 asterix
46 *#* Fix bug in randpool_add and randpool_strir.
48 *#* Revision 1.9 2007/02/13 09:57:12 asterix
49 *#* Add directive #if in struct EntropyPool, and remove #else in randpool_add.
51 *#* Revision 1.8 2007/02/12 09:47:39 asterix
52 *#* Remove randpool_save. Add randpool_pool.
54 *#* Revision 1.6 2007/02/09 15:49:54 asterix
55 *#* Fix bug in randpool_stir and randpool_add. Typos.
57 *#* Revision 1.5 2007/02/09 09:24:38 asterix
58 *#* Typos. Add data_len in randpool_add and n_byte in randpool_push pototypes.
60 *#* Revision 1.4 2007/02/08 17:18:01 asterix
61 *#* Write add_data and stir function. Typos
63 *#* Revision 1.3 2007/02/08 14:25:56 asterix
66 *#* Revision 1.2 2007/02/08 11:53:03 asterix
67 *#* Add EntropyPool struct. Typos.
69 *#* Revision 1.1 2007/02/08 11:13:41 asterix
70 *#* Add function prototypes.
77 #include <cfg/compiler.h>
78 #include <appconfig.h>
82 * Sturct data of entropy pool.
84 typedef struct EntropyPool
86 size_t entropy; ///< Actual value of entropy (byte).
87 size_t pos_add; ///< Number of byte idd in entropy pool.
88 size_t pos_get; ///< Number of byte get in entropy pool.
89 size_t counter; ///< Counter.
91 #if CONFIG_RANDPOOL_TIMER
92 size_t last_counter; ///< Last timer value.
95 uint8_t pool_entropy[CONFIG_SIZE_ENTROPY_POOL]; ///< Entropy pool.
100 void randpool_add(EntropyPool *pool, void *data, size_t entropy);
101 void randpool_init(EntropyPool *pool, void *_data, size_t len);
102 size_t randpool_size(EntropyPool *pool);
103 void randpool_get(EntropyPool *pool, void *data, size_t n_byte);
104 uint8_t *randpool_pool(EntropyPool *pool);
106 #endif /* RANDPOOL_H */