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/