gnutls_verify_stored_pubkey(3)     gnutls     gnutls_verify_stored_pubkey(3)

NAME         top

       gnutls_verify_stored_pubkey - API function

SYNOPSIS         top

       #include <gnutls/gnutls.h>

       int gnutls_verify_stored_pubkey(const char * db_name, gnutls_tdb_t
       tdb, const char * host, const char * service,
       gnutls_certificate_type_t cert_type, const gnutls_datum_t * cert,
       unsigned int flags);

ARGUMENTS         top

       const char * db_name
                   A file specifying the stored keys (use NULL for the

       gnutls_tdb_t tdb
                   A storage structure or NULL to use the default

       const char * host
                   The peer's name

       const char * service
                   non-NULL if this key is specific to a service (e.g. http)

       gnutls_certificate_type_t cert_type
                   The type of the certificate

       const gnutls_datum_t * cert
                   The raw (der) data of the certificate

       unsigned int flags
                   should be 0.

DESCRIPTION         top

       This function will try to verify the provided (raw or DER-encoded)
       certificate using a list of stored public keys.  The  service field
       if non-NULL should be a port number.

       The  retrieve variable if non-null specifies a custom backend for the
       retrieval of entries. If it is NULL then the default file backend
       will be used. In POSIX-like systems the file backend uses the
       $HOME/.gnutls/known_hosts file.

       Note that if the custom storage backend is provided the retrieval
       function should return GNUTLS_E_CERTIFICATE_KEY_MISMATCH if the
       host/service pair is found but key doesn't match,
       GNUTLS_E_NO_CERTIFICATE_FOUND if no such host/service with the given
       key is found, and 0 if it was found. The storage function should
       return 0 on success.

RETURNS         top

       If no associated public key is found then
       GNUTLS_E_NO_CERTIFICATE_FOUND will be returned. If a key is found but
       does not match GNUTLS_E_CERTIFICATE_KEY_MISMATCH is returned. On
       success, GNUTLS_E_SUCCESS (0) is returned, or a negative error value
       on other errors.

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
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
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gnutls                              3.6.2     gnutls_verify_stored_pubkey(3)