gnutls_pubkey_verify_hash2(3)      gnutls      gnutls_pubkey_verify_hash2(3)

NAME         top

       gnutls_pubkey_verify_hash2 - API function

SYNOPSIS         top

       #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         top

       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         top

       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         top

       In case of a verification failure GNUTLS_E_PK_SIG_VERIFY_FAILED is
       returned, and zero or positive code on success. For known to be
       insecure signatures this function will return
       GNUTLS_VERIFY_ALLOW_BROKEN is specified.

SINCE         top


REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2018 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         top

       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 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       tarball gnutls-3.6.2.tar.xz fetched from
       ⟨⟩ on 2018-04-30.  If you discover
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gnutls                              3.6.2      gnutls_pubkey_verify_hash2(3)