gnutls_x509_crt_check_issuer(3)

gnutls_x509_crt_check_issuer3

Api function

Usage

#include <gnutls/x509.h>

unsigned gnutls_x509_crt_check_issuer(gnutls_x509_crt_t cert, gnutls_x509_crt_t issuer);

Arguments

gnutls_x509_crt_t cert

is the certificate to be checked

gnutls_x509_crt_t issuer

is the certificate of a possible issuer

Overview

This function will check if the given certificate was issued by the given issuer. It checks the DN fields and the authority key identifier and subject key identifier fields match.

If the same certificate is provided at the cert and issuer fields, it will check whether the certificate is self-signed.

Returns

It will return true (1) if the given certificate is issued by the given issuer, and false (0) if not.

Releases

10 releases since Debian 4.0 (Etch); the text changed 9 times.

  1. 4.0
  2. 5.0
  3. 6.0
  4. 8
  5. 9
  6. 10
  7. 11
  8. 12
  9. 13
  10. Arch

Reporting bugs

Report bugs to <[email protected]>.
Home page: https://www.gnutls.org

From gnutls 3.8.13-3 in Arch Linux 2026-11-07. Parsed by carta from the page's man source.