gnutls_cipher_decrypt2(3)           gnutls           gnutls_cipher_decrypt2(3)

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: https://www.gnutls.org


COPYRIGHT
       Copyright (C) 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
       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/

gnutls                               3.8.5           gnutls_cipher_decrypt2(3)