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tc_ctr_prng_init() function
CTR-PRNG initialization procedure Initializes prng context with entropy and personalization string (if any)
Syntax
int tc_ctr_prng_init(TCCtrPrng_t * const ctx,
uint8_t const * const entropy,
unsigned int entropyLen,
uint8_t const * const personalization,
unsigned int pLen);
Implemented in ![]()
ctr_prng.c:117
Return value
returns TC_CRYPTO_SUCCESS (1) returns TC_CRYPTO_FAIL (0) if: ctx == NULL, entropy == NULL, entropyLen < (TC_AES_KEY_SIZE + TC_AES_BLOCK_SIZE)
Notes
Only the first (TC_AES_KEY_SIZE + TC_AES_BLOCK_SIZE) bytes of both the entropy and personalization inputs are used - supplying additional bytes has no effect.
Related Functions
Found 5 other functions taking a ![]()
TCCtrPrng_t
argument:
Function
Description
CTR PRNG update Updates the internal state of supplied the CTR PRNG context increments it by one
CTR PRNG update Updates the internal state of supplied the CTR PRNG context increments it by one
CTR-PRNG reseed procedure Mixes entropy and additional_input into the prng context
CTR-PRNG generate procedure Generates outlen pseudo-random bytes into out buffer, updates prng
CTR-PRNG uninstantiate procedure Zeroes the internal state of the supplied prng context