.TH LIBKECCAK_SPEC_SHAKE 3 LIBKECCAK
.SH NAME
libkeccak_spec_shake - Configure SHAKE hashing parameters
.SH SYNOPSIS
.LP
.nf
#include <libkeccak.h>
.P
void
libkeccak_spec_shake(libkeccak_spec_t *\fIspec\fP, long int \fIx\fP, long int \fId\fP);
.fi
.P
Link with
.IR -lkeccak .
.SH DESCRIPTION
The
.BR libkeccak_spec_shake ()
function sets
.I *spec
to specify the Keccak parameters used for SHAKE hashing
with the semicapacity specified, in bits, via the
.I x
parameter, and the output size specified, in bits, via the
.I d
parameter.
.SH RETURN VALUES
The
.BR libkeccak_spec_shake ()
function does not return any value.
.SH ERRORS
The
.BR libkeccak_spec_shake ()
function cannot fail.
.SH EXAMPLE
This examples configure a
.B libkeccak_spec_t
to specify the Keccak parameters used for SHAKE256(, 512):
.LP
.nf
libkeccak_spec_t spec;
libkeccak_spec_shake(&spec, 256, 512);
.fi
.SH SEE ALSO
.BR libkeccak_spec_sha3 (3),
.BR libkeccak_spec_rawshake (3),
.BR libkeccak_spec_check (3),
.BR libkeccak_generalised_spec_initialise (3),
.BR libkeccak_state_initialise (3),
.BR libkeccak_hmac_initialise (3)
.SH BUGS
Please report bugs to https://github.com/maandree/libkeccak/issues or to
maandree@kth.se