shishi_n_fold man page on DragonFly
[printable version]
shishi_n_fold(3) shishi shishi_n_fold(3)
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>.
COPYRIGHT
Copyright © 2002-2010 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 1.0.2 shishi_n_fold(3)
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