struct_rng_alg9
Random number generator definition
Usage
int (*
generate)
(struct
crypto_rng
*tfm,const
u8
*src,
unsigned
int
slen,u8
*dst,
unsigned
int
dlen);
int (*
seed)
(struct
crypto_rng
*tfm,
const
u8
*seed,
unsigned
int
slen);
void (*
set_ent)
(struct
crypto_rng
*tfm,
const
u8
*data,unsigned
int
len);
unsigned int
seedsize;
struct crypto_alg
base;
Members
generate
The function defined by this variable obtains a random number. The random number generator transform must generate the random number out of the context provided with this call, plus any additional data if provided to the call.
seed
Seed or reseed the random number generator. With the invocation of this function call, the random number generator shall become ready for generation. If the random number generator requires a seed for setting up a new state, the seed must be provided by the consumer while invoking this function. The required size of the seed is defined with seedsize .
set_ent
Set entropy that would otherwise be obtained from entropy source. Internal use only.
seedsize
The seed size required for a random number generator initialization defined with this variable. Some random number generators does not require a seed as the seeding is implemented internally without the need of support by the consumer. In this case, the seed size is set to zero.
base
Common crypto API algorithm data structure.