xref: /freebsd/secure/lib/libcrypto/man/man3/X509_check_issued.3 (revision 2f513db72b034fd5ef7f080b11be5c711c15186a)
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Title "X509_CHECK_ISSUED 3"
X509_CHECK_ISSUED 3 "2019-09-10" "1.1.1d" "OpenSSL"
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"NAME"
X509_check_issued - checks if certificate is issued by another certificate
"SYNOPSIS"
Header "SYNOPSIS" .Vb 1 #include <openssl/x509v3.h> \& int X509_check_issued(X509 *issuer, X509 *subject); .Ve
"DESCRIPTION"
Header "DESCRIPTION" This function checks if certificate subject was issued using \s-1CA\s0 certificate issuer. This function takes into account not only matching of issuer field of subject with subject field of issuer, but also compares authorityKeyIdentifier extension of subject with \fBsubjectKeyIdentifier of issuer if authorityKeyIdentifier present in the subject certificate and checks keyUsage field of \fIissuer.
"RETURN VALUES"
Header "RETURN VALUES" Function return X509_V_OK if certificate subject is issued by \fIissuer or some X509_V_ERR* constant to indicate an error.
"SEE ALSO"
Header "SEE ALSO" \fBX509_verify_cert\|(3), \fBX509_check_ca\|(3), \fBverify\|(1)
"COPYRIGHT"
Header "COPYRIGHT" Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.