gnutls_privkey_sign_hash - Online Linux Manual PageSection : 3
Updated : 3.7.3
Source : gnutls
Note : gnutls
NAMEgnutls_privkey_sign_hash − API function
SYNOPSIS#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);
ARGUMENTSgnutls_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
DESCRIPTIONThis 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.
RETURNSOn success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error value.
SINCE2.12.0
REPORTING BUGSReport bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org
COPYRIGHTCopyright © 2001- 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 ALSOThe 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/ 0
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