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61f805c1d5
Because the related PR/commits are merged in 2018... Reviewed-by: Andy Polyakov <appro@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/4976)
46 lines
1.2 KiB
Plaintext
46 lines
1.2 KiB
Plaintext
=pod
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=head1 NAME
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X509_check_issued - checks if certificate is issued by another
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certificate
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=head1 SYNOPSIS
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#include <openssl/x509v3.h>
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int X509_check_issued(X509 *issuer, X509 *subject);
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=head1 DESCRIPTION
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This function checks if certificate I<subject> was issued using CA
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certificate I<issuer>. This function takes into account not only
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matching of issuer field of I<subject> with subject field of I<issuer>,
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but also compares B<authorityKeyIdentifier> extension of I<subject> with
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B<subjectKeyIdentifier> of I<issuer> if B<authorityKeyIdentifier>
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present in the I<subject> certificate and checks B<keyUsage> field of
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I<issuer>.
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=head1 RETURN VALUES
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Function return B<X509_V_OK> if certificate I<subject> is issued by
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I<issuer> or some B<X509_V_ERR*> constant to indicate an error.
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=head1 SEE ALSO
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L<X509_verify_cert(3)>,
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L<X509_check_ca(3)>,
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L<verify(1)>
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=head1 COPYRIGHT
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Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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