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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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gnutls_cipher_encrypt3(3) gnutls gnutls_cipher_encrypt3(3)
gnutls_cipher_encrypt3 - API function
#include <gnutls/crypto.h>
int gnutls_cipher_encrypt3(gnutls_cipher_hd_t handle, const void *
ptext, size_t ptext_len, void * ctext, size_t * ctext_len,
unsigned flags);
gnutls_cipher_hd_t handle
is a gnutls_cipher_hd_t type
const void * ptext
the data to encrypt
size_t ptext_len
the length of data to encrypt
void * ctext
the encrypted data
size_t * ctext_len
the length of encrypted data (initially must hold the
maximum available size)
unsigned flags
flags for padding
This function will encrypt the given data using the algorithm
specified by the context. For block ciphers, ptext_len is
typically a multiple of the block size. If not, the caller can
instruct the function to pad the last block according to flags .
Currently, the only available padding scheme is
GNUTLS_CIPHER_PADDING_PKCS7.
If ctext is not NULL, it must hold enough space to store
resulting cipher text. To check the required size, this function
can be called with ctext set to NULL. Then ctext_len will be
updated without performing actual encryption.
Zero or a negative error code on error.
3.7.7
Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org
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.
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/
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_encrypt3(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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