NAME

       shishi_as_derive_salt - API function

SYNOPSIS

       #include <shishi.h>

       int  shishi_as_derive_salt(Shishi  * handle, Shishi_asn1 asreq, Shishi_asn1 asrep, char **
       salt, size_t * saltlen);

ARGUMENTS

       Shishi * handle
                   Shishi handle as allocated by shishi_init().

       Shishi_asn1 asreq
                   Input AS-REQ variable.

       Shishi_asn1 asrep
                   Input AS-REP variable.

       char ** salt
                   Returned pointer to newly allocated output array.

       size_t * saltlen
                   Pointer to integer, returning size of output array.

DESCRIPTION

       Computes the salt that should be used when deriving a key via  shishi_string_to_key()  for
       an  AS  exchange.   Currently  this  searches for PA-DATA of type SHISHI_PA_PW_SALT in the
       AS-REP provided by asrep, and if present returns it.  Otherwise the salt is composed  from
       the client name and the realm, both are extracted from the request asreq.

RETURN VALUE

       Returns SHISHI_OK if successful.  Failure conditions include various ASN.1 issues.

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/

COPYRIGHT

       Copyright © 2002-2022 Simon Josefsson.
       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.

SEE ALSO

       The full documentation for shishi is maintained as a Texinfo  manual.   If  the  info  and
       shishi programs are properly installed at your site, the command

              info shishi

       should give you access to the complete manual.