Random
[API]

Typedefs
typedef C4eSysStatus(*	C4eRngFunc )(C4eArchSize len, C4eArchUint8 *buf, void *usrarg)
	Typedef for Random Number Generator (RNG) function.
Enumerations
enum	C4eRngMode { C4eRngModeRaw, C4eRngModePkcs1v1 }
Functions
C4eRngFunc	c4e_rng_install (C4eRngFunc fn_rng, void *arg_rng)
	Setup of random number generator (callback) function.

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Typedef Documentation

typedef C4eSysStatus(* C4eRngFunc)(C4eArchSize len, C4eArchUint8 *buf, void *usrarg)

Typedef for Random Number Generator (RNG) function.

Parameters:

[in]	len	Number of random bytes requested.
[out]	buf	Buffer to be filled with random data (bytes).
[in]	usrarg	User argument as passed to c4e_rng_install().

Returns:

On success this function must return C4E_STATUS_OK. All other return values are interpreted as an error.

Definition at line 54 of file c4e_rng.h.

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Enumeration Type Documentation

enum C4eRngMode

Random number generator mode.

The random number generator mode has to be used in conjunction with function c4e_rng_rand().

Enumerator:

C4eRngModeRaw	Generate random w/o any restrictions
C4eRngModePkcs1v1	Generate random compatible to PKCS #1 v1.5

Definition at line 64 of file c4e_rng.h.

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Function Documentation

C4eRngFunc c4e_rng_install	(	C4eRngFunc	fn_rng,
		void *	arg_rng
	)

Setup of random number generator (callback) function.

Postcondition:

Function c4e_rng_rand() does work.

Parameters:

[in]	fn_rng	Random number generator (callback) function.
[in]	arg_rng	Argument to be passed to call of fn_rng.

Returns:

The old random number generator function (possibly NULL).