Cryptography Reference
In-Depth Information
UCHAR
bRandBBS_l (STATEBBS *rstate)
{
int i;
UCHAR r = SwitchRandBBS_l (rstate);
for (i = 1; i < (sizeof (UCHAR) << 3); i++)
{
r = (r << 1) + SwitchRandBBS_l (rstate);
}
return r;
}
For completeness, we should mention the functions
sRandBBS_l()
and
lRandBBS_l()
, which generate random numbers of types
USHORT
and
ULONG
.
We still lack the function
RandBBS_l
, which generates random numbers
r_l
with exactly
l
binary digits
r_l
in the interval
2
l
−
1
≤
r_l
≤
2
l
−
1
.Since
this corresponds to a great extent to the function
rand_l()
,weshallomitan
extensive description, instead presenting only the function header. Of course,
these functions are contained in the FLINT/C package. To delete state buffers, the
function
PurgeRandBBS_l()
is available.
generation of a random number of type
CLINT
Function:
int
RandBBS_l (CLINT r_l, STATEBBS *rstate, int l);
Syntax:
rstate
(internal state of the pseudorandom
number generator)
l
(number of binary digits of the number to be generated
Input:
r_l
(random number in the interval
2
l
−
1
≤
r_l
≤
2
l
−
1)
Ouput:
E_CLINT_OK
if all OK
E_CLINT_RIN
if generator is not initialized
Return:
