---
name: "gnutls_store_commitment"
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_store_commitment"
---

# gnutls\_store\_commitment(3)

API function

## NAME

gnutls\_store\_commitment - API function

## SYNOPSIS

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

**int gnutls\_store\_commitment(const char \*** *db\_name***, gnutls\_tdb\_t** *tdb***, const char \*** *host***, const char \*** *service***, gnutls\_digest\_algorithm\_t** *hash\_algo***, const gnutls\_datum\_t \*** *hash***, time\_t** *expiration***, unsigned int** *flags***);**

## ARGUMENTS

- const char \* db\_name

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

- 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\_digest\_algorithm\_t hash\_algo

  The hash algorithm type

- const gnutls\_datum\_t \* hash

  The raw hash

- time\_t expiration

  The expiration time (use 0 to disable expiration)

- unsigned int flags

  should be 0 or **GNUTLS\_SCOMMIT\_FLAG\_ALLOW\_BROKEN**.

## DESCRIPTION

This function will store the provided hash commitment to the list of stored public keys. The key with the given hash 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.

Note that this function is not thread safe with the default backend.

## RETURNS

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

## SINCE

3\.0

## 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/