gnutls_x509_crt_verify_data2(3)

NAME
gnutls_x509_crt_verify_data2 - API function

SYNOPSIS
#include <gnutls/x509.h>

int gnutls_x509_crt_verify_data2(gnutls_x509_crt_t crt, gnutls_sign_algorithm_t algo, unsigned int flags, const gnutls_datum_t * data, const gnutls_datum_t * signature);

ARGUMENTS

gnutls_x509_crt_t crt
    Holds the certificate to verify with

gnutls_sign_algorithm_t algo
    The signature algorithm used

unsigned int flags
    Zero or an OR list of gnutls_certificate_verify_flags

const gnutls_datum_t * data
    holds the signed data

const gnutls_datum_t * signature
    contains the signature

DESCRIPTION
This function will verify the given signed data, using the parameters from the certificate.

RETURNS
In case of a verification failure GNUTLS_E_PK_SIG_VERIFY_FAILED is returned, GNUTLS_E_EXPIRED or GNUTLS_E_NOT_YET_ACTIVATED on expired or not yet activated certificate and zero or positive code on success. Note that since GnuTLS 3.5.6 this function introduces checks in the end certificate ( crt ), including time checks and key usage checks.

SINCE
3.4.0

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

COPYRIGHT
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
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/