NAME

       shishi_crypto - API function

SYNOPSIS

       #include <shishi.h>

       Shishi_crypto  *  shishi_crypto(Shishi  *  handle, Shishi_key * key, int keyusage, int32_t
       etype, const char * iv, size_t ivlen);

ARGUMENTS

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

       Shishi_key * key
                   key to encrypt with.

       int keyusage
                   integer specifying what this key will encrypt/decrypt.

       int32_t etype
                   integer specifying what cipher to use.

       const char * iv
                   input array with initialization vector

       size_t ivlen
                   size of input array with initialization vector.

DESCRIPTION

       Initialize  a  crypto  context.   This  store  a  key,  keyusage,  encryption   type   and
       initialization  vector in a "context", and the caller can then use this context to perform
       encryption via shishi_crypto_encrypt() and decryption via shishi_crypto_encrypt()  without
       supplying  all  those  details again.  The functions also takes care of propagating the IV
       between calls.

       When the application no longer need to use the context,  it  should  deallocate  resources
       associated with it by calling shishi_crypto_close().

RETURN VALUE

       Return a newly allocated crypto context.

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.