mirror of
https://github.com/openssl/openssl.git
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4cec750c2f
Reviewed-by: Viktor Dukhovni <viktor@openssl.org> (Merged from https://github.com/openssl/openssl/pull/10587)
81 lines
2.4 KiB
Plaintext
81 lines
2.4 KiB
Plaintext
=pod
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=head1 NAME
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X509_verify_ex, X509_verify,
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X509_REQ_verify_ex, X509_REQ_verify,
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X509_CRL_verify -
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verify certificate, certificate request, or CRL signature
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=head1 SYNOPSIS
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#include <openssl/x509.h>
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int X509_verify_ex(X509 *x, EVP_PKEY *pkey,
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OPENSSL_CTX *libctx, const char *propq);
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int X509_verify(X509 *x, EVP_PKEY *pkey);
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int X509_REQ_verify_ex(X509_REQ *a, EVP_PKEY *pkey,
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OPENSSL_CTX *libctx, const char *propq);
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int X509_REQ_verify(X509_REQ *a, EVP_PKEY *r);
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int X509_CRL_verify(X509_CRL *a, EVP_PKEY *r);
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=head1 DESCRIPTION
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X509_verify_ex() verifies the signature of certificate I<x> using public key
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I<pkey>. Any cryptographic algorithms required for the verification are fetched
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using the library context I<libctx> and the property query string I<propq>.
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Only the signature is checked:
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no other checks (such as certificate chain validity) are performed.
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X509_verify() is the same as X509_verify_ex() except that the default library
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context and property query string are used.
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X509_REQ_verify_ex(), X509_REQ_verify() and X509_CRL_verify()
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verify the signatures of certificate requests and CRLs, respectively.
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=head1 RETURN VALUES
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X509_verify_ex(), X509_verify(),
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X509_REQ_verify_ex(), X509_REQ_verify() and X509_CRL_verify()
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return 1 if the signature is valid and 0 if the signature check fails.
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If the signature could not be checked at all because it was ill-formed
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or some other error occurred then -1 is returned.
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=head1 SEE ALSO
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L<d2i_X509(3)>,
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L<ERR_get_error(3)>,
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L<X509_CRL_get0_by_serial(3)>,
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L<X509_get0_signature(3)>,
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L<X509_get_ext_d2i(3)>,
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L<X509_get_extension_flags(3)>,
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L<X509_get_pubkey(3)>,
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L<X509_get_subject_name(3)>,
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L<X509_get_version(3)>,
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L<X509_NAME_ENTRY_get_object(3)>,
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L<X509_NAME_get_index_by_NID(3)>,
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L<X509_NAME_print_ex(3)>,
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L<X509V3_get_d2i(3)>,
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L<X509_verify_cert(3)>,
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L<OPENSSL_CTX(3)>
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=head1 HISTORY
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The X509_verify(), X509_REQ_verify(), and X509_CRL_verify()
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functions are available in all versions of OpenSSL.
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X509_verify_ex() and X509_REQ_verify_ex()
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were added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2015-2020 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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