---
name: "gnutls_session_set_verify_cert2"
section: "3"
platform: "linux"
package: "gnutls"
version: "3.8.13-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_session_set_verify_cert2"
---

# gnutls\_session\_set\_verify\_cert2(3)

API function

## NAME

gnutls\_session\_set\_verify\_cert2 - API function

## SYNOPSIS

**#include \<gnutls/gnutls.h\>**

**void gnutls\_session\_set\_verify\_cert2(gnutls\_session\_t** *session***, gnutls\_typed\_vdata\_st \*** *data***, unsigned** *elements***, unsigned** *flags***);**

## ARGUMENTS

- gnutls\_session\_t session

  is a gnutls session

- gnutls\_typed\_vdata\_st \* data

  an array of typed data

- unsigned elements

  the number of data elements

- unsigned flags

  flags for certificate verification -- **gnutls\_certificate\_verify\_flags**

## DESCRIPTION

This function instructs GnuTLS to verify the peer's certificate using the provided typed data information. If the verification fails the handshake will also fail with **GNUTLS\_E\_CERTIFICATE\_VERIFICATION\_ERROR**. In that case the verification result can be obtained using **gnutls\_session\_get\_verify\_cert\_status()**.

The acceptable typed data are the same as in **gnutls\_certificate\_verify\_peers()**, and once set must remain valid for the lifetime of the session. More precisely they should be available during any subsequent handshakes.

If  *flags* is provided which contain a profile, this function should be called after any session priority setting functions.

## SINCE

3\.4.6

## 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/