gnutls\_psk\_set\_client\_credentials(3) gnutls gnutls\_psk\_set\_client\_credentials(3)

# [NAME](#NAME)

gnutls\_psk\_set\_client\_credentials - API function

# [SYNOPSIS](#SYNOPSIS)

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

**int gnutls\_psk\_set\_client\_credentials(gnutls\_psk\_client\_credentials\_t res, const char * username, const gnutls\_datum\_t * key, gnutls\_psk\_key\_flags flags);**

# [ARGUMENTS](#ARGUMENTS)

[gnutls\_psk\_client\_credentials\_t res](#gnutls_psk_client_credentials_t)

is a **gnutls\_psk\_client\_credentials\_t** type.

[const char * username](#const)

is the user's zero-terminated userid

[const gnutls\_datum\_t * key](#const~2)

is the user's key

[gnutls\_psk\_key\_flags flags](#gnutls_psk_key_flags)

indicate the format of the key, either **GNUTLS\_PSK\_KEY\_RAW** or **GNUTLS\_PSK\_KEY\_HEX**.

# [DESCRIPTION](#DESCRIPTION)

This function sets the username and password, in a gnutls\_psk\_client\_credentials\_t type. Those will be used in PSK authentication. *username* should be an ASCII string or UTF-8 string. In case of a UTF-8 string it is recommended to be following the PRECIS framework for usernames (rfc8265). The key can be either in raw byte format or in Hex format (without the 0x prefix).

# [RETURNS](#RETURNS)

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, otherwise an error code is returned.

# [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_psk_set_client_credentials(3) from gnutls 3.8.13-r3 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls