I2D_RE_X509_TBS(3ossl) OpenSSL I2D_RE_X509_TBS(3ossl)
NAME
d2i_X509_AUX, i2d_X509_AUX, i2d_re_X509_tbs, i2d_re_X509_CRL_tbs,
i2d_re_X509_REQ_tbs - X509 encode and decode functions
SYNOPSIS
#include <openssl/x509.h>
X509 *d2i_X509_AUX(X509 **px, const unsigned char **in, long len);
int i2d_X509_AUX(const X509 *x, unsigned char **out);
int i2d_re_X509_tbs(X509 *x, unsigned char **out);
int i2d_re_X509_CRL_tbs(X509_CRL *crl, unsigned char **pp);
int i2d_re_X509_REQ_tbs(X509_REQ *req, unsigned char **pp);
DESCRIPTION
The X509 encode and decode routines encode and parse an X509 structure,
which represents an X509 certificate.
d2i_X509_AUX() is similar to d2i_X509(3) but the input is expected to
consist of an X509 certificate followed by auxiliary trust information.
This is used by the PEM routines to read "TRUSTED CERTIFICATE" objects.
This function should not be called on untrusted input.
i2d_X509_AUX() is similar to i2d_X509(3), but the encoded output
contains both the certificate and any auxiliary trust information.
This is used by the PEM routines to write "TRUSTED CERTIFICATE"
objects. Note that this is a non-standard OpenSSL-specific data
format.
i2d_re_X509_tbs(3) is similar to i2d_X509(3) except it encodes only the
TBSCertificate portion of the certificate. i2d_re_X509_CRL_tbs() and
i2d_re_X509_REQ_tbs() are analogous for CRL and certificate request,
respectively. The "re" in i2d_re_X509_tbs stands for "re-encode", and
ensures that a fresh encoding is generated in case the object has been
modified after creation (see the BUGS section).
The encoding of the TBSCertificate portion of a certificate is cached
in the X509 structure internally to improve encoding performance and to
ensure certificate signatures are verified correctly in some
certificates with broken (non-DER) encodings.
If, after modification, the X509 object is re-signed with X509_sign(),
the encoding is automatically renewed. Otherwise, the encoding of the
TBSCertificate portion of the X509 can be manually renewed by calling
i2d_re_X509_tbs(3).
RETURN VALUES
d2i_X509_AUX() returns a valid X509 structure or NULL if an error
occurred.
i2d_X509_AUX() returns the length of encoded data or -1 on error.
i2d_re_X509_tbs(3), i2d_re_X509_CRL_tbs() and i2d_re_X509_REQ_tbs()
return the length of encoded data or <=0 on error.
SEE ALSO
ERR_get_error(3) X509_CRL_get0_by_serial(3), X509_get0_signature(3),
X509_get_ext_d2i(3), X509_get_extension_flags(3), X509_get_pubkey(3),
X509_get_subject_name(3), X509_get_version(3),
X509_NAME_add_entry_by_txt(3), X509_NAME_ENTRY_get_object(3),
X509_NAME_get_index_by_NID(3), X509_NAME_print_ex(3), X509_new(3),
X509_sign(3), X509V3_get_d2i(3), X509_verify_cert(3)
COPYRIGHT
Copyright 2002-2018 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
<https://www.openssl.org/source/license.html>.
3.3.2 2024-09-04 I2D_RE_X509_TBS(3ossl)
openssl 3.3.2 - Generated Mon Sep 30 16:26:08 CDT 2024