NAME

       shishi_aes_cts - API function

SYNOPSIS

       #include <shishi.h>

       int  shishi_aes_cts(Shishi  * handle, int decryptp, const char * key, size_t keylen, const
       char iv[16], char * ivout[16], const char * in, size_t inlen, char ** out);

ARGUMENTS

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

       int decryptp
                   0 to indicate encryption, non-0 to indicate decryption.

       const char * key
                   input character array with key to use.

       size_t keylen
                   length of input character array with key to use.

       const char iv[16]
                   input character array with initialization vector to use, or NULL.

       char * ivout[16]
                   output character array with updated initialization vector, or NULL.

       const char * in
                   input character array of data to encrypt/decrypt.

       size_t inlen
                   length of input character array of data to encrypt/decrypt.

       char ** out newly allocated character array with encrypted/decrypted data.

DESCRIPTION

       Encrypt or decrypt data (depending on decryptp) using AES in CBC-CTS mode.  The length  of
       the  key,  keylen,  decide  if  AES 128 or AES 256 should be used.  The out buffer must be
       deallocated by the caller.

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.