prf_sha1

SHA1 pseudorandom function for creating derived keys

void prf_sha1 (
　　const void * key
　　size_t key_len
　　const char * label
　　const void * data
　　size_t data_len
　　void * prf
　　size_t prf_len
)

key

key_len

label

data

data_len

prf

prf_len

SHA1 pseudorandom function for creating derived keys