]> git.ipfire.org Git - thirdparty/openssl.git/blame - include/internal/der.h
PROV: Add the beginning of a DER writing library
[thirdparty/openssl.git] / include / internal / der.h
CommitLineData
1d39620b
RL
1/*
2 * Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <openssl/bn.h>
11#include "internal/packet.h"
12
13/*
14 * NOTE: X.690 numbers the identifier octet bits 1 to 8.
15 * We use the same numbering in comments here.
16 */
17
18/* Well known primitive tags */
19
20/*
21 * DER UNIVERSAL tags, occupying bits 1-5 in the DER identifier byte
22 * These are only valid for the UNIVERSAL class. With the other classes,
23 * these bits have a different meaning.
24 */
25#define DER_P_EOC 0 /* BER End Of Contents tag */
26#define DER_P_BOOLEAN 1
27#define DER_P_INTEGER 2
28#define DER_P_BIT_STRING 3
29#define DER_P_OCTET_STRING 4
30#define DER_P_NULL 5
31#define DER_P_OBJECT 6
32#define DER_P_OBJECT_DESCRIPTOR 7
33#define DER_P_EXTERNAL 8
34#define DER_P_REAL 9
35#define DER_P_ENUMERATED 10
36#define DER_P_UTF8STRING 12
37#define DER_P_SEQUENCE 16
38#define DER_P_SET 17
39#define DER_P_NUMERICSTRING 18
40#define DER_P_PRINTABLESTRING 19
41#define DER_P_T61STRING 20
42#define DER_P_VIDEOTEXSTRING 21
43#define DER_P_IA5STRING 22
44#define DER_P_UTCTIME 23
45#define DER_P_GENERALIZEDTIME 24
46#define DER_P_GRAPHICSTRING 25
47#define DER_P_ISO64STRING 26
48#define DER_P_GENERALSTRING 27
49#define DER_P_UNIVERSALSTRING 28
50#define DER_P_BMPSTRING 30
51
52/* DER Flags, occupying bit 6 in the DER identifier byte */
53#define DER_F_PRIMITIVE 0x00
54#define DER_F_CONSTRUCTED 0x20
55
56/* DER classes tags, occupying bits 7-8 in the DER identifier byte */
57#define DER_C_UNIVERSAL 0x00
58#define DER_C_APPLICATION 0x40
59#define DER_C_CONTEXT 0x80
60#define DER_C_PRIVATE 0xC0
61
62/*
63 * Run-time constructors.
64 *
65 * They all construct DER backwards, so care should be taken to use them
66 * that way.
67 */
68
69/* This can be used for all items that don't have a context */
70#define DER_NO_CONTEXT -1
71
72int DER_w_precompiled(WPACKET *pkt, int tag,
73 const unsigned char *precompiled, size_t precompiled_n);
74
75int DER_w_boolean(WPACKET *pkt, int tag, int b);
76int DER_w_ulong(WPACKET *pkt, int tag, unsigned long v);
77int DER_w_bn(WPACKET *pkt, int tag, const BIGNUM *v);
78int DER_w_null(WPACKET *pkt, int tag);
79
80/*
81 * All constructors for constructed elements have a begin and a end function
82 */
83int DER_w_begin_sequence(WPACKET *pkt, int tag);
84int DER_w_end_sequence(WPACKET *pkt, int tag);