Random Number Generation Functions

This section outlines the functions that generate pseudo random numbers used for padding and generating keys. The functions interact with the Pseudo Random Number Generator (PRNG) state engine to produce a random number stream.

Functions
int	R_CR_random_seed (R_CR crypto, unsigned char bytes, unsigned int len)
	Seeds the Pseudo Random Number Generator (PRNG). More...
int	R_CR_random_bytes (R_CR crypto, unsigned int dlen, unsigned char obuf, unsigned int *olen)
	Returns a number of random Bytes. More...

Function Documentation

int R_CR_random_bytes ( R_CR * crypto,

unsigned int dlen,

unsigned char * obuf,

unsigned int * olen

) ;

Returns a number of random Bytes.
Parameters:

crypto [In] A pointer to the cryptographic object.

dlen [In] The number of Bytes requested.

obuf [Out] The buffer that takes the random Bytes.

olen [Out] The number of random Bytes returned.

Returns:
R_ERROR_NONE indicates success.
See Error Identifiers for valid values.
See also:
R_CR_random_seed().

int R_CR_random_seed ( R_CR * crypto,

unsigned char * bytes,

unsigned int len

) ;

Seeds the Pseudo Random Number Generator (PRNG).
Parameters:

crypto [In] A pointer to the cryptographic object.

bytes [In] A pointer to the seed data.

len [In] The length of the seed data.

Returns:
R_ERROR_NONE indicates success.
See Error Identifiers for valid values.
See also:
R_CR_random_bytes().