81 lines
2.5 KiB
Plaintext
81 lines
2.5 KiB
Plaintext
|
=pod
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
X509_sign, X509_sign_ctx,
|
||
|
|
X509_REQ_sign, X509_REQ_sign_ctx,
|
||
|
|
X509_CRL_sign, X509_CRL_sign_ctx -
|
||
|
|
sign certificate, certificate request, or CRL signature
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
#include <openssl/x509.h>
|
||
|
|
|
||
|
|
int X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md);
|
||
|
|
int X509_sign_ctx(X509 *x, EVP_MD_CTX *ctx);
|
||
|
|
|
||
|
|
int X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md);
|
||
|
|
int X509_REQ_sign_ctx(X509_REQ *x, EVP_MD_CTX *ctx);
|
||
|
|
|
||
|
|
int X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md);
|
||
|
|
int X509_CRL_sign_ctx(X509_CRL *x, EVP_MD_CTX *ctx);
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
X509_sign() signs certificate I<x> using private key I<pkey> and message
|
||
|
|
digest I<md> and sets the signature in I<x>. X509_sign_ctx() also signs
|
||
|
|
certificate I<x> but uses the parameters contained in digest context I<ctx>.
|
||
|
|
If the certificate information includes X.509 extensions,
|
||
|
|
these two functions make sure that the certificate bears X.509 version 3.
|
||
|
|
|
||
|
|
X509_REQ_sign(), X509_REQ_sign_ctx(),
|
||
|
|
X509_CRL_sign(), and X509_CRL_sign_ctx()
|
||
|
|
sign certificate requests and CRLs, respectively.
|
||
|
|
|
||
|
|
=head1 NOTES
|
||
|
|
|
||
|
|
X509_sign_ctx() is used where the default parameters for the corresponding
|
||
|
|
public key and digest are not suitable. It can be used to sign keys using
|
||
|
|
RSA-PSS for example.
|
||
|
|
|
||
|
|
For efficiency reasons and to work around ASN.1 encoding issues the encoding
|
||
|
|
of the signed portion of a certificate, certificate request and CRL is cached
|
||
|
|
internally. If the signed portion of the structure is modified the encoding
|
||
|
|
is not always updated meaning a stale version is sometimes used. This is not
|
||
|
|
normally a problem because modifying the signed portion will invalidate the
|
||
|
|
signature and signing will always update the encoding.
|
||
|
|
|
||
|
|
=head1 RETURN VALUES
|
||
|
|
|
||
|
|
All functions return the size of the signature
|
||
|
|
in bytes for success and zero for failure.
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<ERR_get_error(3)>,
|
||
|
|
L<X509_NAME_add_entry_by_txt(3)>,
|
||
|
|
L<X509_new(3)>,
|
||
|
|
L<X509_verify_cert(3)>,
|
||
|
|
L<X509_verify(3)>,
|
||
|
|
L<X509_REQ_verify_ex(3)>, L<X509_REQ_verify(3)>,
|
||
|
|
L<X509_CRL_verify(3)>
|
||
|
|
|
||
|
|
=head1 HISTORY
|
||
|
|
|
||
|
|
The X509_sign(), X509_REQ_sign() and X509_CRL_sign() functions are
|
||
|
|
available in all versions of OpenSSL.
|
||
|
|
|
||
|
|
The X509_sign_ctx(), X509_REQ_sign_ctx()
|
||
|
|
and X509_CRL_sign_ctx() functions were added in OpenSSL 1.0.1.
|
||
|
|
|
||
|
|
=head1 COPYRIGHT
|
||
|
|
|
||
|
|
Copyright 2015-2023 The OpenSSL Project Authors. All Rights Reserved.
|
||
|
|
|
||
|
|
Licensed under the Apache License 2.0 (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
|
||
|
|
L<https://www.openssl.org/source/license.html>.
|
||
|
|
|
||
|
|
=cut
|