GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
X509_CHECK_ISSUED(3) OpenSSL X509_CHECK_ISSUED(3)

X509_check_issued - checks if certificate is apparently issued by another certificate

 #include <openssl/x509v3.h>

 int X509_check_issued(X509 *issuer, X509 *subject);

X509_check_issued() checks if certificate subject was apparently issued using (CA) certificate issuer. This function takes into account not only matching of the issuer field of subject with the subject field of issuer, but also compares all sub-fields of the authorityKeyIdentifier extension of subject, as far as present, with the respective subjectKeyIdentifier, serial number, and issuer fields of issuer, as far as present. It also checks if the keyUsage field (if present) of issuer allows certificate signing. It does not check the certificate signature.

Function return X509_V_OK if certificate subject is issued by issuer or some X509_V_ERR* constant to indicate an error.

X509_verify_cert(3), X509_check_ca(3), verify(1)

Copyright 2015-2020 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.

2022-05-03 1.1.1o

Search for    or go to Top of page |  Section 3 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.