mbed TLS v2.3.0
x509.h
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1 
25 #ifndef MBEDTLS_X509_H
26 #define MBEDTLS_X509_H
27 
28 #if !defined(MBEDTLS_CONFIG_FILE)
29 #include "config.h"
30 #else
31 #include MBEDTLS_CONFIG_FILE
32 #endif
33 
34 #include "asn1.h"
35 #include "pk.h"
36 
37 #if defined(MBEDTLS_RSA_C)
38 #include "rsa.h"
39 #endif
40 
46 #if !defined(MBEDTLS_X509_MAX_INTERMEDIATE_CA)
47 
55 #define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8
56 #endif
57 
62 #define MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE -0x2080
63 #define MBEDTLS_ERR_X509_UNKNOWN_OID -0x2100
64 #define MBEDTLS_ERR_X509_INVALID_FORMAT -0x2180
65 #define MBEDTLS_ERR_X509_INVALID_VERSION -0x2200
66 #define MBEDTLS_ERR_X509_INVALID_SERIAL -0x2280
67 #define MBEDTLS_ERR_X509_INVALID_ALG -0x2300
68 #define MBEDTLS_ERR_X509_INVALID_NAME -0x2380
69 #define MBEDTLS_ERR_X509_INVALID_DATE -0x2400
70 #define MBEDTLS_ERR_X509_INVALID_SIGNATURE -0x2480
71 #define MBEDTLS_ERR_X509_INVALID_EXTENSIONS -0x2500
72 #define MBEDTLS_ERR_X509_UNKNOWN_VERSION -0x2580
73 #define MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG -0x2600
74 #define MBEDTLS_ERR_X509_SIG_MISMATCH -0x2680
75 #define MBEDTLS_ERR_X509_CERT_VERIFY_FAILED -0x2700
76 #define MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT -0x2780
77 #define MBEDTLS_ERR_X509_BAD_INPUT_DATA -0x2800
78 #define MBEDTLS_ERR_X509_ALLOC_FAILED -0x2880
79 #define MBEDTLS_ERR_X509_FILE_IO_ERROR -0x2900
80 #define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL -0x2980
81 /* \} name */
82 
87 /* Reminder: update x509_crt_verify_strings[] in library/x509_crt.c */
88 #define MBEDTLS_X509_BADCERT_EXPIRED 0x01
89 #define MBEDTLS_X509_BADCERT_REVOKED 0x02
90 #define MBEDTLS_X509_BADCERT_CN_MISMATCH 0x04
91 #define MBEDTLS_X509_BADCERT_NOT_TRUSTED 0x08
92 #define MBEDTLS_X509_BADCRL_NOT_TRUSTED 0x10
93 #define MBEDTLS_X509_BADCRL_EXPIRED 0x20
94 #define MBEDTLS_X509_BADCERT_MISSING 0x40
95 #define MBEDTLS_X509_BADCERT_SKIP_VERIFY 0x80
96 #define MBEDTLS_X509_BADCERT_OTHER 0x0100
97 #define MBEDTLS_X509_BADCERT_FUTURE 0x0200
98 #define MBEDTLS_X509_BADCRL_FUTURE 0x0400
99 #define MBEDTLS_X509_BADCERT_KEY_USAGE 0x0800
100 #define MBEDTLS_X509_BADCERT_EXT_KEY_USAGE 0x1000
101 #define MBEDTLS_X509_BADCERT_NS_CERT_TYPE 0x2000
102 #define MBEDTLS_X509_BADCERT_BAD_MD 0x4000
103 #define MBEDTLS_X509_BADCERT_BAD_PK 0x8000
104 #define MBEDTLS_X509_BADCERT_BAD_KEY 0x010000
105 #define MBEDTLS_X509_BADCRL_BAD_MD 0x020000
106 #define MBEDTLS_X509_BADCRL_BAD_PK 0x040000
107 #define MBEDTLS_X509_BADCRL_BAD_KEY 0x080000
109 /* \} name */
110 /* \} addtogroup x509_module */
111 
112 /*
113  * X.509 v3 Key Usage Extension flags
114  * Reminder: update x509_info_key_usage() when adding new flags.
115  */
116 #define MBEDTLS_X509_KU_DIGITAL_SIGNATURE (0x80) /* bit 0 */
117 #define MBEDTLS_X509_KU_NON_REPUDIATION (0x40) /* bit 1 */
118 #define MBEDTLS_X509_KU_KEY_ENCIPHERMENT (0x20) /* bit 2 */
119 #define MBEDTLS_X509_KU_DATA_ENCIPHERMENT (0x10) /* bit 3 */
120 #define MBEDTLS_X509_KU_KEY_AGREEMENT (0x08) /* bit 4 */
121 #define MBEDTLS_X509_KU_KEY_CERT_SIGN (0x04) /* bit 5 */
122 #define MBEDTLS_X509_KU_CRL_SIGN (0x02) /* bit 6 */
123 #define MBEDTLS_X509_KU_ENCIPHER_ONLY (0x01) /* bit 7 */
124 #define MBEDTLS_X509_KU_DECIPHER_ONLY (0x8000) /* bit 8 */
125 
126 /*
127  * Netscape certificate types
128  * (http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn3.html)
129  */
130 
131 #define MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT (0x80) /* bit 0 */
132 #define MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER (0x40) /* bit 1 */
133 #define MBEDTLS_X509_NS_CERT_TYPE_EMAIL (0x20) /* bit 2 */
134 #define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING (0x10) /* bit 3 */
135 #define MBEDTLS_X509_NS_CERT_TYPE_RESERVED (0x08) /* bit 4 */
136 #define MBEDTLS_X509_NS_CERT_TYPE_SSL_CA (0x04) /* bit 5 */
137 #define MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA (0x02) /* bit 6 */
138 #define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA (0x01) /* bit 7 */
139 
140 /*
141  * X.509 extension types
142  *
143  * Comments refer to the status for using certificates. Status can be
144  * different for writing certificates or reading CRLs or CSRs.
145  */
146 #define MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER (1 << 0)
147 #define MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER (1 << 1)
148 #define MBEDTLS_X509_EXT_KEY_USAGE (1 << 2)
149 #define MBEDTLS_X509_EXT_CERTIFICATE_POLICIES (1 << 3)
150 #define MBEDTLS_X509_EXT_POLICY_MAPPINGS (1 << 4)
151 #define MBEDTLS_X509_EXT_SUBJECT_ALT_NAME (1 << 5) /* Supported (DNS) */
152 #define MBEDTLS_X509_EXT_ISSUER_ALT_NAME (1 << 6)
153 #define MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS (1 << 7)
154 #define MBEDTLS_X509_EXT_BASIC_CONSTRAINTS (1 << 8) /* Supported */
155 #define MBEDTLS_X509_EXT_NAME_CONSTRAINTS (1 << 9)
156 #define MBEDTLS_X509_EXT_POLICY_CONSTRAINTS (1 << 10)
157 #define MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE (1 << 11)
158 #define MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS (1 << 12)
159 #define MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY (1 << 13)
160 #define MBEDTLS_X509_EXT_FRESHEST_CRL (1 << 14)
161 
162 #define MBEDTLS_X509_EXT_NS_CERT_TYPE (1 << 16) /* Parsed (and then ?) */
163 
164 /*
165  * Storage format identifiers
166  * Recognized formats: PEM and DER
167  */
168 #define MBEDTLS_X509_FORMAT_DER 1
169 #define MBEDTLS_X509_FORMAT_PEM 2
170 
171 #define MBEDTLS_X509_MAX_DN_NAME_SIZE 256
173 #ifdef __cplusplus
174 extern "C" {
175 #endif
176 
190 
195 
201 
206 
208 typedef struct mbedtls_x509_time
209 {
210  int year, mon, day;
211  int hour, min, sec;
212 }
214 
229 int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn );
230 
242 int mbedtls_x509_serial_gets( char *buf, size_t size, const mbedtls_x509_buf *serial );
243 
257 
271 
277 int mbedtls_x509_self_test( int verbose );
278 
279 /*
280  * Internal module functions. You probably do not want to use these unless you
281  * know you do.
282  */
283 int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
284  mbedtls_x509_name *cur );
285 int mbedtls_x509_get_alg_null( unsigned char **p, const unsigned char *end,
286  mbedtls_x509_buf *alg );
287 int mbedtls_x509_get_alg( unsigned char **p, const unsigned char *end,
288  mbedtls_x509_buf *alg, mbedtls_x509_buf *params );
289 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
290 int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params,
291  mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md,
292  int *salt_len );
293 #endif
294 int mbedtls_x509_get_sig( unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig );
295 int mbedtls_x509_get_sig_alg( const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params,
296  mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg,
297  void **sig_opts );
298 int mbedtls_x509_get_time( unsigned char **p, const unsigned char *end,
299  mbedtls_x509_time *time );
300 int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end,
301  mbedtls_x509_buf *serial );
302 int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end,
303  mbedtls_x509_buf *ext, int tag );
304 int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid,
305  mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg,
306  const void *sig_opts );
307 int mbedtls_x509_key_size_helper( char *buf, size_t buf_size, const char *name );
308 int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name );
309 int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
310  int critical, const unsigned char *val,
311  size_t val_len );
312 int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start,
313  mbedtls_asn1_named_data *first );
314 int mbedtls_x509_write_names( unsigned char **p, unsigned char *start,
315  mbedtls_asn1_named_data *first );
316 int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start,
317  const char *oid, size_t oid_len,
318  unsigned char *sig, size_t size );
319 
320 #define MBEDTLS_X509_SAFE_SNPRINTF \
321  do { \
322  if( ret < 0 || (size_t) ret >= n ) \
323  return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL ); \
324  \
325  n -= (size_t) ret; \
326  p += (size_t) ret; \
327  } while( 0 )
328 
329 #ifdef __cplusplus
330 }
331 #endif
332 
333 #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)
int mbedtls_x509_get_time(unsigned char **p, const unsigned char *end, mbedtls_x509_time *time)
mbedtls_asn1_buf mbedtls_x509_buf
Type-length-value structure that allows for ASN1 using DER.
Definition: x509.h:189
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_past(const mbedtls_x509_time *time)
Check a given mbedtls_x509_time against the system time and tell if it's in the past.
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:76
Configuration options (set of defines)
int mbedtls_x509_write_sig(unsigned char **p, unsigned char *start, const char *oid, size_t oid_len, unsigned char *sig, size_t size)
Container for a sequence of ASN.1 items.
Definition: asn1.h:142
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.
Container for a sequence or list of 'named' ASN.1 data items.
Definition: asn1.h:152
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
Container for a sequence of ASN.1 items.
Definition: x509.h:205
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.
Type-length-value structure that allows for ASN1 using DER.
Definition: asn1.h:120
Container for date and time (precision in seconds).
Definition: x509.h:208
struct mbedtls_x509_time mbedtls_x509_time
Container for date and time (precision in seconds).
int day
Date.
Definition: x509.h:210
int mbedtls_x509_sig_alg_gets(char *buf, size_t size, const mbedtls_x509_buf *sig_oid, mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg, const void *sig_opts)
int sec
Time.
Definition: x509.h:211
mbedtls_asn1_bitstring mbedtls_x509_bitstring
Container for ASN1 bit strings.
Definition: x509.h:194
mbedtls_asn1_named_data mbedtls_x509_name
Container for ASN1 named information objects.
Definition: x509.h:200
The RSA public-key cryptosystem.
int mbedtls_x509_self_test(int verbose)
Checkup routine.
int mbedtls_x509_time_is_future(const mbedtls_x509_time *time)
Check a given mbedtls_x509_time against the system time and tell if it's in the future.
Container for ASN1 bit strings.
Definition: asn1.h:131
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
Definition: md.h:41
int mbedtls_x509_get_serial(unsigned char **p, const unsigned char *end, mbedtls_x509_buf *serial)