Parent topic:MPLAB® Harmony Crypto Library
int CRYPT_RNG_BlockGenerate(
CRYPT_RNG_CTX* rng,
unsigned char* b,
unsigned int sz
);
This function generates several random numbers and places them in the space allocated.
RNG context was initialized using the CRYPT_RNG_Initialize function.
| Parameters | Description |
|---|---|
| rng | Pointer to context which saves state between calls. |
| b | Pointer to buffer to store the random numbers. |
| sz | Number of 8-bit random numbers to generate. |
BAD_FUNC_ARG - An invalid pointer was passed to the function.
0 - An invalid pointer was not passed to the function.
None.
#define RANDOM_BYTE_SZ 32
int ret;
CRYPT_RNG_CTX mcRng;
byte out[RANDOM_BYTE_SZ];
ret = CRYPT_RNG_Initialize(&mcRng);
ret = CRYPT_RNG_Get(&mcRng, &out[0]);
ret = CRYPT_RNG_BlockGenerate(&mcRng, out, RANDOM_BYTE_SZ);
ret = CRYPT_RNG_Deinitialize(&mcRng);