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55 lines
1.5 KiB
Plaintext
55 lines
1.5 KiB
Plaintext
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=pod
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=head1 NAME
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X509_check_private_key, X509_REQ_check_private_key - check the consistency
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of a private key with the public key in an X509 certificate or certificate
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request
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=head1 SYNOPSIS
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#include <openssl/x509.h>
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int X509_check_private_key(X509 *x, EVP_PKEY *k);
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int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k);
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=head1 DESCRIPTION
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X509_check_private_key() function checks the consistency of private
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key B<k> with the public key in B<x>.
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X509_REQ_check_private_key() is equivalent to X509_check_private_key()
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except that B<x> represents a certificate request of structure B<X509_REQ>.
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=head1 RETURN VALUES
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X509_check_private_key() and X509_REQ_check_private_key() return 1 if
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the keys match each other, and 0 if not.
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If the key is invalid or an error occurred, the reason code can be
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obtained using L<ERR_get_error(3)>.
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=head1 BUGS
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The B<check_private_key> functions don't check if B<k> itself is indeed
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a private key or not. It merely compares the public materials (e.g. exponent
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and modulus of an RSA key) and/or key parameters (e.g. EC params of an EC key)
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of a key pair. So if you pass a public key to these functions in B<k>, it will
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return success.
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=head1 SEE ALSO
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L<ERR_get_error(3)>
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=head1 COPYRIGHT
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Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (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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