Provided by: shishi-doc_1.0.3-5_all bug

NAME
       shishi_n_fold - API function


SYNOPSIS
       #include <shishi.h>

       int shishi_n_fold(Shishi * handle, const char * in, size_t inlen, char * out, size_t outlen);


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

       const char * in
                   input array with data to decrypt.

       size_t inlen
                   size of input array with data to decrypt ("M").

       char * out  output array with decrypted data.

       size_t outlen
                   size of output array ("N").


DESCRIPTION
       Fold  data  into  a fixed length output array, with the intent to give each input bit approximately equal
       weight in determining the value of each output bit.

       The algorithm is from "A Better Key Schedule For DES-like  Ciphers"  by  Uri  Blumenthal  and  Steven  M.
       Bellovin,  http://www.research.att.com/~smb/papers/ides.pdf,  although the sample vectors provided by the
       paper are incorrect.


RETURN VALUE
       Returns SHISHI_OK iff successful.


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.

shishi                                                1.0.3                                     shishi_n_fold(3)