NAME

       gnutls_cipher_decrypt2 - API function

SYNOPSIS

       #include <gnutls/crypto.h>

       int   gnutls_cipher_decrypt2(gnutls_cipher_hd_t   handle,   const  void  *  ctext,  size_t
       ctext_len, void * ptext, size_t ptext_len);

ARGUMENTS

       gnutls_cipher_hd_t handle
                   is a gnutls_cipher_hd_t type

       const void * ctext
                   the data to decrypt

       size_t ctext_len
                   the length of data to decrypt

       void * ptext
                   the decrypted data

       size_t ptext_len
                   the available length for decrypted data

DESCRIPTION

       This function will decrypt the given data using the algorithm specified  by  the  context.
       For  block  ciphers the  ctext_len must be a multiple of the block size. For the supported
       ciphers the plaintext data length will equal the ciphertext size.

       Note that in AEAD ciphers, this will not check the tag. You will need to compare  the  tag
       sent with the value returned from gnutls_cipher_tag().

RETURNS

       Zero or a negative error code on error.

SINCE

       2.12.0

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: http://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2021 Free Software Foundation, Inc., and others.
       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  gnutls  is  maintained  as  a  Texinfo  manual.    If   the
       /usr/share/doc/gnutls/ directory does not contain the HTML form visit

       http://www.gnutls.org/manual/