gnutls\_store\_pubkey(3) gnutls gnutls\_store\_pubkey(3)

# [NAME](#NAME)

gnutls\_store\_pubkey - API function

# [SYNOPSIS](#SYNOPSIS)

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

**int gnutls\_store\_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, time\_t expiration, unsigned int flags);**

# [ARGUMENTS](#ARGUMENTS)

[const char * db\_name](#const)

A file specifying the stored keys (use NULL for the default)

[gnutls\_tdb\_t tdb](#gnutls_tdb_t)

A storage structure or NULL to use the default

[const char * host](#const~2)

The peer's name

[const char * service](#const~3)

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

[gnutls\_certificate\_type\_t cert\_type](#gnutls_certificate_type_t)

The type of the certificate

[const gnutls\_datum\_t * cert](#const~4)

The data of the certificate

[time\_t expiration](#time_t)

The expiration time (use 0 to disable expiration)

[unsigned int flags](#unsigned)

should be 0.

# [DESCRIPTION](#DESCRIPTION)

This function will store a raw public-key or a public-key provided via a raw (DER-encoded) certificate to the list of stored public keys. The key will be considered valid until the provided expiration time.

The *tdb* variable if non-null specifies a custom backend for the storage of entries. If it is NULL then the default file backend will be used.

Unless an alternative *tdb* is provided, the storage format is a textual format consisting of a line for each host with fields separated by '|'. The contents of the fields are a format-identifier which is set to 'g0', the hostname that the rest of the data applies to, the numeric port or host name, the expiration time in seconds since the epoch (0 for no expiration), and a base64 encoding of the raw (DER) public key information (SPKI) of the peer.

As of GnuTLS 3.6.6 this function also accepts raw public keys.

# [RETURNS](#RETURNS)

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, otherwise a negative error value.

# [SINCE](#SINCE)

3.0.13

# [REPORTING BUGS](#REPORTING_BUGS)

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

# [COPYRIGHT](#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](#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/](https://www.gnutls.org/manual/)

3.8.13 gnutls

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Document: gnutls_store_pubkey(3) from gnutls 3.8.13-r1 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls