NAME

       gnutls_pubkey_verify_hash2 - API function

SYNOPSIS

       #include <gnutls/abstract.h>

       int gnutls_pubkey_verify_hash2(gnutls_pubkey_t key, gnutls_sign_algorithm_t algo, unsigned
       int flags, const gnutls_datum_t * hash, const gnutls_datum_t * signature);

ARGUMENTS

       gnutls_pubkey_t key
                   Holds the public key

       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 * hash
                   holds the hash digest to be verified

       const gnutls_datum_t * signature
                   contains the signature

DESCRIPTION

       This function will verify the given signed digest, using the parameters  from  the  public
       key.  Note  that  unlike  gnutls_privkey_sign_hash(),  this  function  accepts a signature
       algorithm instead of a digest algorithm.  You  can  use  gnutls_pk_to_sign()  to  get  the
       appropriate value.

RETURNS

       In  case  of a verification failure GNUTLS_E_PK_SIG_VERIFY_FAILED is returned, and zero or
       positive code on success.

SINCE

       3.0

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: http://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2021 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

       http://www.gnutls.org/manual/