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133 .\" ========================================================================
135 .IX Title "I2D_RE_X509_TBS 3"
136 .TH I2D_RE_X509_TBS 3 "2020-09-22" "1.1.1h" "OpenSSL"
137 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
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142 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
144 .IX Header "SYNOPSIS"
146 \& #include <openssl/x509.h>
148 \& X509 *d2i_X509_AUX(X509 **px, const unsigned char **in, long len);
149 \& int i2d_X509_AUX(X509 *x, unsigned char **out);
150 \& int i2d_re_X509_tbs(X509 *x, unsigned char **out);
151 \& int i2d_re_X509_CRL_tbs(X509_CRL *crl, unsigned char **pp);
152 \& int i2d_re_X509_REQ_tbs(X509_REQ *req, unsigned char **pp);
155 .IX Header "DESCRIPTION"
156 The X509 encode and decode routines encode and parse an
157 \&\fBX509\fR structure, which represents an X509 certificate.
159 \&\fBd2i_X509_AUX()\fR is similar to \fBd2i_X509\fR\|(3) but the input is expected to
160 consist of an X509 certificate followed by auxiliary trust information.
161 This is used by the \s-1PEM\s0 routines to read \*(L"\s-1TRUSTED CERTIFICATE\*(R"\s0 objects.
162 This function should not be called on untrusted input.
164 \&\fBi2d_X509_AUX()\fR is similar to \fBi2d_X509\fR\|(3), but the encoded output
165 contains both the certificate and any auxiliary trust information.
166 This is used by the \s-1PEM\s0 routines to write \*(L"\s-1TRUSTED CERTIFICATE\*(R"\s0 objects.
167 Note that this is a non-standard OpenSSL-specific data format.
169 \&\fBi2d_re_X509_tbs()\fR is similar to \fBi2d_X509\fR\|(3) except it encodes only
170 the TBSCertificate portion of the certificate. \fBi2d_re_X509_CRL_tbs()\fR
171 and \fBi2d_re_X509_REQ_tbs()\fR are analogous for \s-1CRL\s0 and certificate request,
172 respectively. The \*(L"re\*(R" in \fBi2d_re_X509_tbs\fR stands for \*(L"re-encode\*(R",
173 and ensures that a fresh encoding is generated in case the object has been
174 modified after creation (see the \s-1BUGS\s0 section).
176 The encoding of the TBSCertificate portion of a certificate is cached
177 in the \fBX509\fR structure internally to improve encoding performance
178 and to ensure certificate signatures are verified correctly in some
179 certificates with broken (non-DER) encodings.
181 If, after modification, the \fBX509\fR object is re-signed with \fBX509_sign()\fR,
182 the encoding is automatically renewed. Otherwise, the encoding of the
183 TBSCertificate portion of the \fBX509\fR can be manually renewed by calling
184 \&\fBi2d_re_X509_tbs()\fR.
186 .IX Header "RETURN VALUES"
187 \&\fBd2i_X509_AUX()\fR returns a valid \fBX509\fR structure or \s-1NULL\s0 if an error occurred.
189 \&\fBi2d_X509_AUX()\fR returns the length of encoded data or \-1 on error.
191 \&\fBi2d_re_X509_tbs()\fR, \fBi2d_re_X509_CRL_tbs()\fR and \fBi2d_re_X509_REQ_tbs()\fR return the
192 length of encoded data or 0 on error.
194 .IX Header "SEE ALSO"
195 \&\fBERR_get_error\fR\|(3)
196 \&\fBX509_CRL_get0_by_serial\fR\|(3),
197 \&\fBX509_get0_signature\fR\|(3),
198 \&\fBX509_get_ext_d2i\fR\|(3),
199 \&\fBX509_get_extension_flags\fR\|(3),
200 \&\fBX509_get_pubkey\fR\|(3),
201 \&\fBX509_get_subject_name\fR\|(3),
202 \&\fBX509_get_version\fR\|(3),
203 \&\fBX509_NAME_add_entry_by_txt\fR\|(3),
204 \&\fBX509_NAME_ENTRY_get_object\fR\|(3),
205 \&\fBX509_NAME_get_index_by_NID\fR\|(3),
206 \&\fBX509_NAME_print_ex\fR\|(3),
207 \&\fBX509_new\fR\|(3),
208 \&\fBX509_sign\fR\|(3),
209 \&\fBX509V3_get_d2i\fR\|(3),
210 \&\fBX509_verify_cert\fR\|(3)
212 .IX Header "COPYRIGHT"
213 Copyright 2002\-2018 The OpenSSL Project Authors. All Rights Reserved.
215 Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use
216 this file except in compliance with the License. You can obtain a copy
217 in the file \s-1LICENSE\s0 in the source distribution or at
218 <https://www.openssl.org/source/license.html>.