.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.
.TH "shishi_dr" 3 "1.0.2" "shishi" "shishi"
.SH NAME
shishi_dr \- API function
.SH SYNOPSIS
.B #include <shishi.h>
.sp
.BI "int shishi_dr(Shishi * " handle ", Shishi_key * " key ", const char * " prfconstant ", size_t " prfconstantlen ", char * " derivedrandom ", size_t " derivedrandomlen ");"
.SH ARGUMENTS
.IP "Shishi * handle" 12
shishi handle as allocated by \fBshishi_init()\fP.
.IP "Shishi_key * key" 12
input array with cryptographic key to use.
.IP "const char * prfconstant" 12
input array with the constant string.
.IP "size_t prfconstantlen" 12
size of input array with the constant string.
.IP "char * derivedrandom" 12
output array with derived random data.
.IP "size_t derivedrandomlen" 12
size of output array with derived random data.
.SH "DESCRIPTION"
Derive "random" data from a key and a constant thusly:
DR(KEY, PRFCONSTANT) = TRUNCATE(DERIVEDRANDOMLEN,
SHISHI_ENCRYPT(KEY, PRFCONSTANT)).
.SH "RETURN VALUE"
Returns \fBSHISHI_OK\fP iff successful.
.SH "REPORTING BUGS"
Report bugs to <bug-shishi@gnu.org>.
.SH COPYRIGHT
Copyright \(co 2002-2010 Simon Josefsson.
.br
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
.SH "SEE ALSO"
The full documentation for
.B shishi
is maintained as a Texinfo manual.  If the
.B info
and
.B shishi
programs are properly installed at your site, the command
.IP
.B info shishi
.PP
should give you access to the complete manual.