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gnutls_cipher_decrypt(3) — Linux manual page

NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON 

gnutls_cipher_decrypt(3)          gnutls         gnutls_cipher_decrypt(3)

NAME         top

       gnutls_cipher_decrypt - API function

SYNOPSIS         top

       #include <gnutls/crypto.h>

       int gnutls_cipher_decrypt(gnutls_cipher_hd_t handle, void * ctext,
       size_t ctext_len);

ARGUMENTS         top

       gnutls_cipher_hd_t handle
                   is a gnutls_cipher_hd_t type

       void * ctext
                   the data to decrypt

       size_t ctext_len
                   the length of data to decrypt

DESCRIPTION         top

       This function will decrypt the given data using the algorithm
       specified by the context.

       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         top

       Zero or a negative error code on error.

SINCE         top

       2.10.0

REPORTING BUGS         top

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

COPYRIGHT         top

       Copyright © 2001-2023 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         top

       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

       https://www.gnutls.org/manual/

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at
       ⟨http://www.gnutls.org/⟩.  If you have a bug report for this
       manual page, send it to bugs@gnutls.org.  This page was obtained
       from the tarball fetched from
       ⟨https://www.gnupg.org/ftp/gcrypt/gnutls/⟩ on 2025-08-11.  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for the
       page, or you have corrections or improvements to the information
       in this COLOPHON (which is not part of the original manual page),
       send a mail to man-pages@man7.org

gnutls                            3.8.10         gnutls_cipher_decrypt(3)

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