mbed TLS v3.1.0
x509.h
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1 
6 /*
7  * Copyright The Mbed TLS Contributors
8  * SPDX-License-Identifier: Apache-2.0
9  *
10  * Licensed under the Apache License, Version 2.0 (the "License"); you may
11  * not use this file except in compliance with the License.
12  * You may obtain a copy of the License at
13  *
14  * http://www.apache.org/licenses/LICENSE-2.0
15  *
16  * Unless required by applicable law or agreed to in writing, software
17  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
18  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19  * See the License for the specific language governing permissions and
20  * limitations under the License.
21  */
22 #ifndef MBEDTLS_X509_H
23 #define MBEDTLS_X509_H
24 #include "mbedtls/private_access.h"
25 
26 #include "mbedtls/build_info.h"
27 
28 #include "mbedtls/asn1.h"
29 #include "mbedtls/pk.h"
30 
31 #if defined(MBEDTLS_RSA_C)
32 #include "mbedtls/rsa.h"
33 #endif
34 
40 #if !defined(MBEDTLS_X509_MAX_INTERMEDIATE_CA)
41 
49 #define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8
50 #endif
51 
57 #define MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE -0x2080
58 
59 #define MBEDTLS_ERR_X509_UNKNOWN_OID -0x2100
60 
61 #define MBEDTLS_ERR_X509_INVALID_FORMAT -0x2180
62 
63 #define MBEDTLS_ERR_X509_INVALID_VERSION -0x2200
64 
65 #define MBEDTLS_ERR_X509_INVALID_SERIAL -0x2280
66 
67 #define MBEDTLS_ERR_X509_INVALID_ALG -0x2300
68 
69 #define MBEDTLS_ERR_X509_INVALID_NAME -0x2380
70 
71 #define MBEDTLS_ERR_X509_INVALID_DATE -0x2400
72 
73 #define MBEDTLS_ERR_X509_INVALID_SIGNATURE -0x2480
74 
75 #define MBEDTLS_ERR_X509_INVALID_EXTENSIONS -0x2500
76 
77 #define MBEDTLS_ERR_X509_UNKNOWN_VERSION -0x2580
78 
79 #define MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG -0x2600
80 
81 #define MBEDTLS_ERR_X509_SIG_MISMATCH -0x2680
82 
83 #define MBEDTLS_ERR_X509_CERT_VERIFY_FAILED -0x2700
84 
85 #define MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT -0x2780
86 
87 #define MBEDTLS_ERR_X509_BAD_INPUT_DATA -0x2800
88 
89 #define MBEDTLS_ERR_X509_ALLOC_FAILED -0x2880
90 
91 #define MBEDTLS_ERR_X509_FILE_IO_ERROR -0x2900
92 
93 #define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL -0x2980
94 
95 #define MBEDTLS_ERR_X509_FATAL_ERROR -0x3000
96 /* \} name */
97 
102 /* Reminder: update x509_crt_verify_strings[] in library/x509_crt.c */
103 #define MBEDTLS_X509_BADCERT_EXPIRED 0x01
104 #define MBEDTLS_X509_BADCERT_REVOKED 0x02
105 #define MBEDTLS_X509_BADCERT_CN_MISMATCH 0x04
106 #define MBEDTLS_X509_BADCERT_NOT_TRUSTED 0x08
107 #define MBEDTLS_X509_BADCRL_NOT_TRUSTED 0x10
108 #define MBEDTLS_X509_BADCRL_EXPIRED 0x20
109 #define MBEDTLS_X509_BADCERT_MISSING 0x40
110 #define MBEDTLS_X509_BADCERT_SKIP_VERIFY 0x80
111 #define MBEDTLS_X509_BADCERT_OTHER 0x0100
112 #define MBEDTLS_X509_BADCERT_FUTURE 0x0200
113 #define MBEDTLS_X509_BADCRL_FUTURE 0x0400
114 #define MBEDTLS_X509_BADCERT_KEY_USAGE 0x0800
115 #define MBEDTLS_X509_BADCERT_EXT_KEY_USAGE 0x1000
116 #define MBEDTLS_X509_BADCERT_NS_CERT_TYPE 0x2000
117 #define MBEDTLS_X509_BADCERT_BAD_MD 0x4000
118 #define MBEDTLS_X509_BADCERT_BAD_PK 0x8000
119 #define MBEDTLS_X509_BADCERT_BAD_KEY 0x010000
120 #define MBEDTLS_X509_BADCRL_BAD_MD 0x020000
121 #define MBEDTLS_X509_BADCRL_BAD_PK 0x040000
122 #define MBEDTLS_X509_BADCRL_BAD_KEY 0x080000
124 /* \} name */
125 /* \} addtogroup x509_module */
126 
127 /*
128  * X.509 v3 Subject Alternative Name types.
129  * otherName [0] OtherName,
130  * rfc822Name [1] IA5String,
131  * dNSName [2] IA5String,
132  * x400Address [3] ORAddress,
133  * directoryName [4] Name,
134  * ediPartyName [5] EDIPartyName,
135  * uniformResourceIdentifier [6] IA5String,
136  * iPAddress [7] OCTET STRING,
137  * registeredID [8] OBJECT IDENTIFIER
138  */
139 #define MBEDTLS_X509_SAN_OTHER_NAME 0
140 #define MBEDTLS_X509_SAN_RFC822_NAME 1
141 #define MBEDTLS_X509_SAN_DNS_NAME 2
142 #define MBEDTLS_X509_SAN_X400_ADDRESS_NAME 3
143 #define MBEDTLS_X509_SAN_DIRECTORY_NAME 4
144 #define MBEDTLS_X509_SAN_EDI_PARTY_NAME 5
145 #define MBEDTLS_X509_SAN_UNIFORM_RESOURCE_IDENTIFIER 6
146 #define MBEDTLS_X509_SAN_IP_ADDRESS 7
147 #define MBEDTLS_X509_SAN_REGISTERED_ID 8
148 
149 /*
150  * X.509 v3 Key Usage Extension flags
151  * Reminder: update x509_info_key_usage() when adding new flags.
152  */
153 #define MBEDTLS_X509_KU_DIGITAL_SIGNATURE (0x80) /* bit 0 */
154 #define MBEDTLS_X509_KU_NON_REPUDIATION (0x40) /* bit 1 */
155 #define MBEDTLS_X509_KU_KEY_ENCIPHERMENT (0x20) /* bit 2 */
156 #define MBEDTLS_X509_KU_DATA_ENCIPHERMENT (0x10) /* bit 3 */
157 #define MBEDTLS_X509_KU_KEY_AGREEMENT (0x08) /* bit 4 */
158 #define MBEDTLS_X509_KU_KEY_CERT_SIGN (0x04) /* bit 5 */
159 #define MBEDTLS_X509_KU_CRL_SIGN (0x02) /* bit 6 */
160 #define MBEDTLS_X509_KU_ENCIPHER_ONLY (0x01) /* bit 7 */
161 #define MBEDTLS_X509_KU_DECIPHER_ONLY (0x8000) /* bit 8 */
162 
163 /*
164  * Netscape certificate types
165  * (http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn3.html)
166  */
167 
168 #define MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT (0x80) /* bit 0 */
169 #define MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER (0x40) /* bit 1 */
170 #define MBEDTLS_X509_NS_CERT_TYPE_EMAIL (0x20) /* bit 2 */
171 #define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING (0x10) /* bit 3 */
172 #define MBEDTLS_X509_NS_CERT_TYPE_RESERVED (0x08) /* bit 4 */
173 #define MBEDTLS_X509_NS_CERT_TYPE_SSL_CA (0x04) /* bit 5 */
174 #define MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA (0x02) /* bit 6 */
175 #define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA (0x01) /* bit 7 */
176 
177 /*
178  * X.509 extension types
179  *
180  * Comments refer to the status for using certificates. Status can be
181  * different for writing certificates or reading CRLs or CSRs.
182  *
183  * Those are defined in oid.h as oid.c needs them in a data structure. Since
184  * these were previously defined here, let's have aliases for compatibility.
185  */
186 #define MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_AUTHORITY_KEY_IDENTIFIER
187 #define MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_SUBJECT_KEY_IDENTIFIER
188 #define MBEDTLS_X509_EXT_KEY_USAGE MBEDTLS_OID_X509_EXT_KEY_USAGE
189 #define MBEDTLS_X509_EXT_CERTIFICATE_POLICIES MBEDTLS_OID_X509_EXT_CERTIFICATE_POLICIES
190 #define MBEDTLS_X509_EXT_POLICY_MAPPINGS MBEDTLS_OID_X509_EXT_POLICY_MAPPINGS
191 #define MBEDTLS_X509_EXT_SUBJECT_ALT_NAME MBEDTLS_OID_X509_EXT_SUBJECT_ALT_NAME /* Supported (DNS) */
192 #define MBEDTLS_X509_EXT_ISSUER_ALT_NAME MBEDTLS_OID_X509_EXT_ISSUER_ALT_NAME
193 #define MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS MBEDTLS_OID_X509_EXT_SUBJECT_DIRECTORY_ATTRS
194 #define MBEDTLS_X509_EXT_BASIC_CONSTRAINTS MBEDTLS_OID_X509_EXT_BASIC_CONSTRAINTS /* Supported */
195 #define MBEDTLS_X509_EXT_NAME_CONSTRAINTS MBEDTLS_OID_X509_EXT_NAME_CONSTRAINTS
196 #define MBEDTLS_X509_EXT_POLICY_CONSTRAINTS MBEDTLS_OID_X509_EXT_POLICY_CONSTRAINTS
197 #define MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE MBEDTLS_OID_X509_EXT_EXTENDED_KEY_USAGE
198 #define MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS MBEDTLS_OID_X509_EXT_CRL_DISTRIBUTION_POINTS
199 #define MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY MBEDTLS_OID_X509_EXT_INIHIBIT_ANYPOLICY
200 #define MBEDTLS_X509_EXT_FRESHEST_CRL MBEDTLS_OID_X509_EXT_FRESHEST_CRL
201 #define MBEDTLS_X509_EXT_NS_CERT_TYPE MBEDTLS_OID_X509_EXT_NS_CERT_TYPE
202 
203 /*
204  * Storage format identifiers
205  * Recognized formats: PEM and DER
206  */
207 #define MBEDTLS_X509_FORMAT_DER 1
208 #define MBEDTLS_X509_FORMAT_PEM 2
209 
210 #define MBEDTLS_X509_MAX_DN_NAME_SIZE 256
212 #ifdef __cplusplus
213 extern "C" {
214 #endif
215 
229 
234 
240 
245 
247 typedef struct mbedtls_x509_time
248 {
249  int year, mon, day;
250  int hour, min, sec;
251 }
253 
268 int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn );
269 
281 int mbedtls_x509_serial_gets( char *buf, size_t size, const mbedtls_x509_buf *serial );
282 
296 
310 
311 /*
312  * Internal module functions. You probably do not want to use these unless you
313  * know you do.
314  */
315 int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
316  mbedtls_x509_name *cur );
317 int mbedtls_x509_get_alg_null( unsigned char **p, const unsigned char *end,
318  mbedtls_x509_buf *alg );
319 int mbedtls_x509_get_alg( unsigned char **p, const unsigned char *end,
320  mbedtls_x509_buf *alg, mbedtls_x509_buf *params );
321 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
322 int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params,
323  mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md,
324  int *salt_len );
325 #endif
326 int mbedtls_x509_get_sig( unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig );
327 int mbedtls_x509_get_sig_alg( const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params,
328  mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg,
329  void **sig_opts );
330 int mbedtls_x509_get_time( unsigned char **p, const unsigned char *end,
331  mbedtls_x509_time *t );
332 int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end,
333  mbedtls_x509_buf *serial );
334 int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end,
335  mbedtls_x509_buf *ext, int tag );
336 #if !defined(MBEDTLS_X509_REMOVE_INFO)
337 int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid,
338  mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg,
339  const void *sig_opts );
340 #endif
341 int mbedtls_x509_key_size_helper( char *buf, size_t buf_size, const char *name );
342 int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name );
343 int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
344  int critical, const unsigned char *val,
345  size_t val_len );
346 int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start,
347  mbedtls_asn1_named_data *first );
348 int mbedtls_x509_write_names( unsigned char **p, unsigned char *start,
349  mbedtls_asn1_named_data *first );
350 int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start,
351  const char *oid, size_t oid_len,
352  unsigned char *sig, size_t size );
353 
354 #define MBEDTLS_X509_SAFE_SNPRINTF \
355  do { \
356  if( ret < 0 || (size_t) ret >= n ) \
357  return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL ); \
358  \
359  n -= (size_t) ret; \
360  p += (size_t) ret; \
361  } while( 0 )
362 
363 #ifdef __cplusplus
364 }
365 #endif
366 
367 #endif /* x509.h */
int mbedtls_x509_get_name(unsigned char **p, const unsigned char *end, mbedtls_x509_name *cur)
int mbedtls_x509_write_extensions(unsigned char **p, unsigned char *start, mbedtls_asn1_named_data *first)
mbedtls_asn1_buf mbedtls_x509_buf
Definition: x509.h:228
int mbedtls_x509_get_alg(unsigned char **p, const unsigned char *end, mbedtls_x509_buf *alg, mbedtls_x509_buf *params)
int mbedtls_x509_time_is_future(const mbedtls_x509_time *from)
Check a given mbedtls_x509_time against the system time and tell if it's in the future.
int mbedtls_x509_get_sig(unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig)
int mbedtls_x509_string_to_names(mbedtls_asn1_named_data **head, const char *name)
mbedtls_pk_type_t
Public key types.
Definition: pk.h:90
int mbedtls_x509_write_sig(unsigned char **p, unsigned char *start, const char *oid, size_t oid_len, unsigned char *sig, size_t size)
int mbedtls_x509_write_names(unsigned char **p, unsigned char *start, mbedtls_asn1_named_data *first)
int mbedtls_x509_key_size_helper(char *buf, size_t buf_size, const char *name)
Public Key abstraction layer.
int mbedtls_x509_get_sig_alg(const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params, mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg, void **sig_opts)
int mbedtls_x509_get_rsassa_pss_params(const mbedtls_x509_buf *params, mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md, int *salt_len)
mbedtls_asn1_sequence mbedtls_x509_sequence
Definition: x509.h:244
int mbedtls_x509_serial_gets(char *buf, size_t size, const mbedtls_x509_buf *serial)
Store the certificate serial in printable form into buf; no more than size characters will be written...
Generic ASN.1 parsing.
struct mbedtls_x509_time mbedtls_x509_time
Macro wrapper for struct's memebrs.
mbedtls_asn1_bitstring mbedtls_x509_bitstring
Definition: x509.h:233
Build-time configuration info.
mbedtls_asn1_named_data mbedtls_x509_name
Definition: x509.h:239
This file provides an API for the RSA public-key cryptosystem.
int mbedtls_x509_time_is_past(const mbedtls_x509_time *to)
Check a given mbedtls_x509_time against the system time and tell if it's in the past.
int mbedtls_x509_set_extension(mbedtls_asn1_named_data **head, const char *oid, size_t oid_len, int critical, const unsigned char *val, size_t val_len)
int mbedtls_x509_dn_gets(char *buf, size_t size, const mbedtls_x509_name *dn)
Store the certificate DN in printable form into buf; no more than size characters will be written...
int mbedtls_x509_get_ext(unsigned char **p, const unsigned char *end, mbedtls_x509_buf *ext, int tag)
int mbedtls_x509_get_alg_null(unsigned char **p, const unsigned char *end, mbedtls_x509_buf *alg)
mbedtls_md_type_t
Supported message digests.
Definition: md.h:55
int mbedtls_x509_get_serial(unsigned char **p, const unsigned char *end, mbedtls_x509_buf *serial)
int mbedtls_x509_get_time(unsigned char **p, const unsigned char *end, mbedtls_x509_time *t)