randpool.h

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00001 
00044 #ifndef ALGO_RANDPOOL_H
00045 #define ALGO_RANDPOOL_H
00046 
00047 #include "cfg/cfg_randpool.h"
00048 #include <cfg/compiler.h>
00049 
00050 
00054 typedef struct EntropyPool
00055 {
00056     size_t entropy;                                  
00057     size_t pos_add;                                  
00058     size_t pos_get;                                  
00059     size_t counter;                                  
00060 
00061 #if CONFIG_RANDPOOL_TIMER
00062     size_t last_counter;                             
00063 #endif
00064 
00065     uint8_t pool_entropy[CONFIG_SIZE_ENTROPY_POOL];  
00066 
00067 } EntropyPool;
00068 
00069 
00070 void randpool_add(EntropyPool *pool, void *data, size_t entropy);
00071 void randpool_init(EntropyPool *pool, void *_data, size_t len);
00072 size_t randpool_size(EntropyPool *pool);
00073 void randpool_get(EntropyPool *pool, void *data, size_t n_byte);
00074 uint8_t *randpool_pool(EntropyPool *pool);
00075 
00076 #endif /* ALGO_RANDPOOL_H */