.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.
.TH "shishi_as_derive_salt" 3 "1.0.3" "shishi" "shishi"
.SH NAME
shishi_as_derive_salt \- API function
.SH SYNOPSIS
.B #include <shishi.h>
.sp
.BI "int shishi_as_derive_salt(Shishi * " handle ", Shishi_asn1 " asreq ", Shishi_asn1 " asrep ", char ** " salt ", size_t * " saltlen ");"
.SH ARGUMENTS
.IP "Shishi * handle" 12
Shishi handle as allocated by \fBshishi_init()\fP.
.IP "Shishi_asn1 asreq" 12
Input AS\-REQ variable.
.IP "Shishi_asn1 asrep" 12
Input AS\-REP variable.
.IP "char ** salt" 12
Returned pointer to newly allocated output array.
.IP "size_t * saltlen" 12
Pointer to integer, returning size of output array.
.SH "DESCRIPTION"
Computes the salt that should be used when deriving a key via
\fBshishi_string_to_key()\fP for an AS exchange.  Currently this
searches for PA\-DATA of type \fBSHISHI_PA_PW_SALT\fP in the AS\-REP
provided by \fIasrep\fP, and if present returns it.  Otherwise the
salt is composed from the client name and the realm, both are
extracted from the request \fIasreq\fP.
.SH "RETURN VALUE"
Returns \fBSHISHI_OK\fP if successful.
Failure conditions include various ASN.1 issues.
.SH "REPORTING BUGS"
Report bugs to <bug-shishi@gnu.org>.
GNU Shishi home page: http://www.gnu.org/software/shishi/
General help using GNU software: http://www.gnu.org/gethelp/
.SH COPYRIGHT
Copyright \(co 2002-2022 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.