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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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gnutls_privkey_sign_hash(3) gnutls gnutls_privkey_sign_hash(3)
gnutls_privkey_sign_hash - API function
#include <gnutls/abstract.h>
int gnutls_privkey_sign_hash(gnutls_privkey_t signer,
gnutls_digest_algorithm_t hash_algo, unsigned int flags, const
gnutls_datum_t * hash_data, gnutls_datum_t * signature);
gnutls_privkey_t signer
Holds the signer's key
gnutls_digest_algorithm_t hash_algo
The hash algorithm used
unsigned int flags
Zero or one of gnutls_privkey_flags_t
const gnutls_datum_t * hash_data
holds the data to be signed
gnutls_datum_t * signature
will contain newly allocated signature
This function will sign the given hashed data using a signature
algorithm supported by the private key. Signature algorithms are
always used together with a hash functions. Different hash
functions may be used for the RSA algorithm, but only SHA-XXX for
the DSA keys.
You may use gnutls_pubkey_get_preferred_hash_algorithm() to
determine the hash algorithm.
The flags may be GNUTLS_PRIVKEY_SIGN_FLAG_TLS1_RSA or
GNUTLS_PRIVKEY_SIGN_FLAG_RSA_PSS. In the former case this
function will ignore hash_algo and perform a raw PKCS1
signature, and in the latter an RSA-PSS signature will be
generated.
Note that, not all algorithm support signing already hashed data.
When signing with Ed25519, gnutls_privkey_sign_data() should be
used.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a
negative error value.
2.12.0
Report bugs to <[email protected]>.
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 [email protected]. This page was obtained
from the tarball gnutls-3.8.5.tar.xz fetched from
⟨http://www.gnutls.org/download.html⟩ on 2024-06-14. 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 [email protected]
gnutls 3.8.5 gnutls_privkey_sign_hash(3)
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HTML rendering created 2024-06-26 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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