gnutls\_pkcs11\_get\_raw\_issuer\_by\_subject\_key\_id(3) gnutls gnutls\_pkcs11\_get\_raw\_issuer\_by\_subject\_key\_id(3)

# [NAME](#NAME)

gnutls\_pkcs11\_get\_raw\_issuer\_by\_subject\_key\_id - API function

# [SYNOPSIS](#SYNOPSIS)

**#include <gnutls/pkcs11.h>**

**int gnutls\_pkcs11\_get\_raw\_issuer\_by\_subject\_key\_id(const char * url, const gnutls\_datum\_t * dn, const gnutls\_datum\_t * spki, gnutls\_datum\_t * issuer, gnutls\_x509\_crt\_fmt\_t fmt, unsigned int flags);**

# [ARGUMENTS](#ARGUMENTS)

[const char * url](#const)

A PKCS 11 url identifying a token

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

is the DN to search for (may be **NULL**)

[const gnutls\_datum\_t * spki](#const~3)

is the subject key ID to search for

[gnutls\_datum\_t * issuer](#gnutls_datum_t)

Will hold the issuer if any in an allocated buffer.

[gnutls\_x509\_crt\_fmt\_t fmt](#gnutls_x509_crt_fmt_t)

The format of the exported issuer.

[unsigned int flags](#unsigned)

Use zero or flags from **GNUTLS\_PKCS11\_OBJ\_FLAG**.

# [DESCRIPTION](#DESCRIPTION)

This function will return the certificate with the given DN and *spki* , if it is stored in the token. By default only marked as trusted issuers are returned. If any issuer should be returned specify **GNUTLS\_PKCS11\_OBJ\_FLAG\_RETRIEVE\_ANY** in *flags* .

The name of the function includes issuer because it can be used to discover issuers of certificates.

# [RETURNS](#RETURNS)

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

# [SINCE](#SINCE)

3.4.2

# [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_pkcs11_get_raw_issuer_by_subject_key_id(3) from gnutls 3.8.13-r1 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls