mbed TLS v2.23.0: X.509 module

mbed TLS v2.23.0

Data Structures | Macros | Functions | Variables
X.509 module

## Data Structures
struct | mbedtls_x509_time
struct | mbedtls_x509_crl_entry
struct | mbedtls_x509_crl
struct | mbedtls_x509_crt
struct | mbedtls_x509_san_other_name
struct | mbedtls_x509_subject_alternative_name
struct | mbedtls_x509_crt_profile
struct | mbedtls_x509write_cert
struct | mbedtls_x509_crt_verify_chain_item
struct | mbedtls_x509_crt_verify_chain
struct | mbedtls_x509_csr
struct | mbedtls_x509write_csr

## Macros
#define | MBEDTLS_X509_MAX_INTERMEDIATE_CA 8
#define | MBEDTLS_X509_SAFE_SNPRINTF

## Functions
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. More...
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. More...
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. More...
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. More...
int | mbedtls_x509_self_test (int verbose)
| Checkup routine. More...
int | mbedtls_x509_get_name (unsigned char **p, const unsigned char *end, mbedtls_x509_name *cur)
int | mbedtls_x509_get_alg_null (unsigned char **p, const unsigned char *end, mbedtls_x509_buf *alg)
int | mbedtls_x509_get_alg (unsigned char **p, const unsigned char *end, mbedtls_x509_buf *alg, mbedtls_x509_buf *params)
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)
int | mbedtls_x509_get_sig (unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig)
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_time (unsigned char **p, const unsigned char *end, mbedtls_x509_time *t)
int | mbedtls_x509_get_serial (unsigned char **p, const unsigned char *end, mbedtls_x509_buf *serial)
int | mbedtls_x509_get_ext (unsigned char **p, const unsigned char *end, mbedtls_x509_buf *ext, int tag)
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 | mbedtls_x509_key_size_helper (char *buf, size_t buf_size, const char *name)
int | mbedtls_x509_string_to_names (mbedtls_asn1_named_data **head, const char *name)
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_write_extensions (unsigned char **p, unsigned char *start, mbedtls_asn1_named_data *first)
int | mbedtls_x509_write_names (unsigned char **p, unsigned char *start, mbedtls_asn1_named_data *first)
int | mbedtls_x509_write_sig (unsigned char **p, unsigned char *start, const char *oid, size_t oid_len, unsigned char *sig, size_t size)

## Variables
int | mbedtls_x509_time::year
int | mbedtls_x509_time::mon
int | mbedtls_x509_time::day
int | mbedtls_x509_time::hour
int | mbedtls_x509_time::min
int | mbedtls_x509_time::sec
mbedtls_x509_buf | mbedtls_x509_crl_entry::raw
mbedtls_x509_buf | mbedtls_x509_crl_entry::serial
mbedtls_x509_time | mbedtls_x509_crl_entry::revocation_date
mbedtls_x509_buf | mbedtls_x509_crl_entry::entry_ext
struct mbedtls_x509_crl_entry * | mbedtls_x509_crl_entry::next
mbedtls_x509_buf | mbedtls_x509_crl::raw
mbedtls_x509_buf | mbedtls_x509_crl::tbs
int | mbedtls_x509_crl::version
mbedtls_x509_buf | mbedtls_x509_crl::sig_oid
mbedtls_x509_buf | mbedtls_x509_crl::issuer_raw
mbedtls_x509_name | mbedtls_x509_crl::issuer
mbedtls_x509_time | mbedtls_x509_crl::this_update
mbedtls_x509_time | mbedtls_x509_crl::next_update
mbedtls_x509_crl_entry | mbedtls_x509_crl::entry
mbedtls_x509_buf | mbedtls_x509_crl::crl_ext
mbedtls_x509_buf | mbedtls_x509_crl::sig_oid2
mbedtls_x509_buf | mbedtls_x509_crl::sig
mbedtls_md_type_t | mbedtls_x509_crl::sig_md
mbedtls_pk_type_t | mbedtls_x509_crl::sig_pk
void * | mbedtls_x509_crl::sig_opts
struct mbedtls_x509_crl * | mbedtls_x509_crl::next
int | mbedtls_x509_crt::own_buffer
mbedtls_x509_buf | mbedtls_x509_crt::raw
mbedtls_x509_buf | mbedtls_x509_crt::tbs
int | mbedtls_x509_crt::version
mbedtls_x509_buf | mbedtls_x509_crt::serial
mbedtls_x509_buf | mbedtls_x509_crt::sig_oid
mbedtls_x509_buf | mbedtls_x509_crt::issuer_raw
mbedtls_x509_buf | mbedtls_x509_crt::subject_raw
mbedtls_x509_name | mbedtls_x509_crt::issuer
mbedtls_x509_name | mbedtls_x509_crt::subject
mbedtls_x509_time | mbedtls_x509_crt::valid_from
mbedtls_x509_time | mbedtls_x509_crt::valid_to
mbedtls_x509_buf | mbedtls_x509_crt::pk_raw
mbedtls_pk_context | mbedtls_x509_crt::pk
mbedtls_x509_buf | mbedtls_x509_crt::issuer_id
mbedtls_x509_buf | mbedtls_x509_crt::subject_id
mbedtls_x509_buf | mbedtls_x509_crt::v3_ext
mbedtls_x509_sequence | mbedtls_x509_crt::subject_alt_names
mbedtls_x509_sequence | mbedtls_x509_crt::certificate_policies
int | mbedtls_x509_crt::ext_types
int | mbedtls_x509_crt::ca_istrue
int | mbedtls_x509_crt::max_pathlen
unsigned int | mbedtls_x509_crt::key_usage
mbedtls_x509_sequence | mbedtls_x509_crt::ext_key_usage
unsigned char | mbedtls_x509_crt::ns_cert_type
mbedtls_x509_buf | mbedtls_x509_crt::sig
mbedtls_md_type_t | mbedtls_x509_crt::sig_md
mbedtls_pk_type_t | mbedtls_x509_crt::sig_pk
void * | mbedtls_x509_crt::sig_opts
struct mbedtls_x509_crt * | mbedtls_x509_crt::next
mbedtls_x509_buf | mbedtls_x509_san_other_name::type_id
mbedtls_x509_buf mbedtls_x509_san_other_name::oid
mbedtls_x509_buf mbedtls_x509_san_other_name::val
struct {
mbedtls_x509_buf mbedtls_x509_san_other_name::oid
mbedtls_x509_buf mbedtls_x509_san_other_name::val
} mbedtls_x509_san_other_name::hardware_module_name
union {
struct {
mbedtls_x509_buf mbedtls_x509_san_other_name::oid
mbedtls_x509_buf mbedtls_x509_san_other_name::val
} mbedtls_x509_san_other_name::hardware_module_name
} | mbedtls_x509_san_other_name::value
int | mbedtls_x509_subject_alternative_name::type
mbedtls_x509_san_other_name mbedtls_x509_subject_alternative_name::other_name
mbedtls_x509_buf mbedtls_x509_subject_alternative_name::unstructured_name
union {
mbedtls_x509_san_other_name mbedtls_x509_subject_alternative_name::other_name
mbedtls_x509_buf mbedtls_x509_subject_alternative_name::unstructured_name
} | mbedtls_x509_subject_alternative_name::san
uint32_t | mbedtls_x509_crt_profile::allowed_mds
uint32_t | mbedtls_x509_crt_profile::allowed_pks
uint32_t | mbedtls_x509_crt_profile::allowed_curves
uint32_t | mbedtls_x509_crt_profile::rsa_min_bitlen
int | mbedtls_x509write_cert::version
mbedtls_mpi | mbedtls_x509write_cert::serial
mbedtls_pk_context * | mbedtls_x509write_cert::subject_key
mbedtls_pk_context * | mbedtls_x509write_cert::issuer_key
mbedtls_asn1_named_data * | mbedtls_x509write_cert::subject
mbedtls_asn1_named_data * | mbedtls_x509write_cert::issuer
mbedtls_md_type_t | mbedtls_x509write_cert::md_alg
char | mbedtls_x509write_cert::not_before [MBEDTLS_X509_RFC5280_UTC_TIME_LEN+1]
char | mbedtls_x509write_cert::not_after [MBEDTLS_X509_RFC5280_UTC_TIME_LEN+1]
mbedtls_asn1_named_data * | mbedtls_x509write_cert::extensions
mbedtls_x509_crt * | mbedtls_x509_crt_verify_chain_item::crt
uint32_t | mbedtls_x509_crt_verify_chain_item::flags
mbedtls_x509_crt_verify_chain_item | mbedtls_x509_crt_verify_chain::items [MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE]
unsigned | mbedtls_x509_crt_verify_chain::len
mbedtls_x509_buf | mbedtls_x509_csr::raw
mbedtls_x509_buf | mbedtls_x509_csr::cri
int | mbedtls_x509_csr::version
mbedtls_x509_buf | mbedtls_x509_csr::subject_raw
mbedtls_x509_name | mbedtls_x509_csr::subject
mbedtls_pk_context | mbedtls_x509_csr::pk
mbedtls_x509_buf | mbedtls_x509_csr::sig_oid
mbedtls_x509_buf | mbedtls_x509_csr::sig
mbedtls_md_type_t | mbedtls_x509_csr::sig_md
mbedtls_pk_type_t | mbedtls_x509_csr::sig_pk
void * | mbedtls_x509_csr::sig_opts
mbedtls_pk_context * | mbedtls_x509write_csr::key
mbedtls_asn1_named_data * | mbedtls_x509write_csr::subject
mbedtls_md_type_t | mbedtls_x509write_csr::md_alg
mbedtls_asn1_named_data * | mbedtls_x509write_csr::extensions

## X509 Error codes
#define | MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE -0x2080
#define | MBEDTLS_ERR_X509_UNKNOWN_OID -0x2100
#define | MBEDTLS_ERR_X509_INVALID_FORMAT -0x2180
#define | MBEDTLS_ERR_X509_INVALID_VERSION -0x2200
#define | MBEDTLS_ERR_X509_INVALID_SERIAL -0x2280
#define | MBEDTLS_ERR_X509_INVALID_ALG -0x2300
#define | MBEDTLS_ERR_X509_INVALID_NAME -0x2380
#define | MBEDTLS_ERR_X509_INVALID_DATE -0x2400
#define | MBEDTLS_ERR_X509_INVALID_SIGNATURE -0x2480
#define | MBEDTLS_ERR_X509_INVALID_EXTENSIONS -0x2500
#define | MBEDTLS_ERR_X509_UNKNOWN_VERSION -0x2580
#define | MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG -0x2600
#define | MBEDTLS_ERR_X509_SIG_MISMATCH -0x2680
#define | MBEDTLS_ERR_X509_CERT_VERIFY_FAILED -0x2700
#define | MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT -0x2780
#define | MBEDTLS_ERR_X509_BAD_INPUT_DATA -0x2800
#define | MBEDTLS_ERR_X509_ALLOC_FAILED -0x2880
#define | MBEDTLS_ERR_X509_FILE_IO_ERROR -0x2900
#define | MBEDTLS_ERR_X509_BUFFER_TOO_SMALL -0x2980
#define | MBEDTLS_ERR_X509_FATAL_ERROR -0x3000

## X509 Verify codes
#define | MBEDTLS_X509_BADCERT_EXPIRED 0x01
#define | MBEDTLS_X509_BADCERT_REVOKED 0x02
#define | MBEDTLS_X509_BADCERT_CN_MISMATCH 0x04
#define | MBEDTLS_X509_BADCERT_NOT_TRUSTED 0x08
#define | MBEDTLS_X509_BADCRL_NOT_TRUSTED 0x10
#define | MBEDTLS_X509_BADCRL_EXPIRED 0x20
#define | MBEDTLS_X509_BADCERT_MISSING 0x40
#define | MBEDTLS_X509_BADCERT_SKIP_VERIFY 0x80
#define | MBEDTLS_X509_BADCERT_OTHER 0x0100
#define | MBEDTLS_X509_BADCERT_FUTURE 0x0200
#define | MBEDTLS_X509_BADCRL_FUTURE 0x0400
#define | MBEDTLS_X509_BADCERT_KEY_USAGE 0x0800
#define | MBEDTLS_X509_BADCERT_EXT_KEY_USAGE 0x1000
#define | MBEDTLS_X509_BADCERT_NS_CERT_TYPE 0x2000
#define | MBEDTLS_X509_BADCERT_BAD_MD 0x4000
#define | MBEDTLS_X509_BADCERT_BAD_PK 0x8000
#define | MBEDTLS_X509_BADCERT_BAD_KEY 0x010000
#define | MBEDTLS_X509_BADCRL_BAD_MD 0x020000
#define | MBEDTLS_X509_BADCRL_BAD_PK 0x040000
#define | MBEDTLS_X509_BADCRL_BAD_KEY 0x080000
#define | MBEDTLS_X509_SAN_OTHER_NAME 0
#define | MBEDTLS_X509_SAN_RFC822_NAME 1
#define | MBEDTLS_X509_SAN_DNS_NAME 2
#define | MBEDTLS_X509_SAN_X400_ADDRESS_NAME 3
#define | MBEDTLS_X509_SAN_DIRECTORY_NAME 4
#define | MBEDTLS_X509_SAN_EDI_PARTY_NAME 5
#define | MBEDTLS_X509_SAN_UNIFORM_RESOURCE_IDENTIFIER 6
#define | MBEDTLS_X509_SAN_IP_ADDRESS 7
#define | MBEDTLS_X509_SAN_REGISTERED_ID 8
#define | MBEDTLS_X509_KU_DIGITAL_SIGNATURE (0x80) /* bit 0 */
#define | MBEDTLS_X509_KU_NON_REPUDIATION (0x40) /* bit 1 */
#define | MBEDTLS_X509_KU_KEY_ENCIPHERMENT (0x20) /* bit 2 */
#define | MBEDTLS_X509_KU_DATA_ENCIPHERMENT (0x10) /* bit 3 */
#define | MBEDTLS_X509_KU_KEY_AGREEMENT (0x08) /* bit 4 */
#define | MBEDTLS_X509_KU_KEY_CERT_SIGN (0x04) /* bit 5 */
#define | MBEDTLS_X509_KU_CRL_SIGN (0x02) /* bit 6 */
#define | MBEDTLS_X509_KU_ENCIPHER_ONLY (0x01) /* bit 7 */
#define | MBEDTLS_X509_KU_DECIPHER_ONLY (0x8000) /* bit 8 */
#define | MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT (0x80) /* bit 0 */
#define | MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER (0x40) /* bit 1 */
#define | MBEDTLS_X509_NS_CERT_TYPE_EMAIL (0x20) /* bit 2 */
#define | MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING (0x10) /* bit 3 */
#define | MBEDTLS_X509_NS_CERT_TYPE_RESERVED (0x08) /* bit 4 */
#define | MBEDTLS_X509_NS_CERT_TYPE_SSL_CA (0x04) /* bit 5 */
#define | MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA (0x02) /* bit 6 */
#define | MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA (0x01) /* bit 7 */
#define | MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_AUTHORITY_KEY_IDENTIFIER
#define | MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_SUBJECT_KEY_IDENTIFIER
#define | MBEDTLS_X509_EXT_KEY_USAGE MBEDTLS_OID_X509_EXT_KEY_USAGE
#define | MBEDTLS_X509_EXT_CERTIFICATE_POLICIES MBEDTLS_OID_X509_EXT_CERTIFICATE_POLICIES
#define | MBEDTLS_X509_EXT_POLICY_MAPPINGS MBEDTLS_OID_X509_EXT_POLICY_MAPPINGS
#define | MBEDTLS_X509_EXT_SUBJECT_ALT_NAME MBEDTLS_OID_X509_EXT_SUBJECT_ALT_NAME /* Supported (DNS) */
#define | MBEDTLS_X509_EXT_ISSUER_ALT_NAME MBEDTLS_OID_X509_EXT_ISSUER_ALT_NAME
#define | MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS MBEDTLS_OID_X509_EXT_SUBJECT_DIRECTORY_ATTRS
#define | MBEDTLS_X509_EXT_BASIC_CONSTRAINTS MBEDTLS_OID_X509_EXT_BASIC_CONSTRAINTS /* Supported */
#define | MBEDTLS_X509_EXT_NAME_CONSTRAINTS MBEDTLS_OID_X509_EXT_NAME_CONSTRAINTS
#define | MBEDTLS_X509_EXT_POLICY_CONSTRAINTS MBEDTLS_OID_X509_EXT_POLICY_CONSTRAINTS
#define | MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE MBEDTLS_OID_X509_EXT_EXTENDED_KEY_USAGE
#define | MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS MBEDTLS_OID_X509_EXT_CRL_DISTRIBUTION_POINTS
#define | MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY MBEDTLS_OID_X509_EXT_INIHIBIT_ANYPOLICY
#define | MBEDTLS_X509_EXT_FRESHEST_CRL MBEDTLS_OID_X509_EXT_FRESHEST_CRL
#define | MBEDTLS_X509_EXT_NS_CERT_TYPE MBEDTLS_OID_X509_EXT_NS_CERT_TYPE
#define | MBEDTLS_X509_FORMAT_DER 1
#define | MBEDTLS_X509_FORMAT_PEM 2
#define | MBEDTLS_X509_MAX_DN_NAME_SIZE 256

## Structures for parsing X.509 certificates, CRLs and CSRs
typedef mbedtls_asn1_buf | mbedtls_x509_buf
typedef mbedtls_asn1_bitstring | mbedtls_x509_bitstring
typedef mbedtls_asn1_named_data | mbedtls_x509_name
typedef mbedtls_asn1_sequence | mbedtls_x509_sequence
typedef struct mbedtls_x509_time | mbedtls_x509_time

## Structures and functions for parsing CRLs
typedef struct mbedtls_x509_crl_entry | mbedtls_x509_crl_entry
typedef struct mbedtls_x509_crl | mbedtls_x509_crl
int | mbedtls_x509_crl_parse_der (mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen)
| Parse a DER-encoded CRL and append it to the chained list. More...
int | mbedtls_x509_crl_parse (mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen)
| Parse one or more CRLs and append them to the chained list. More...
int | mbedtls_x509_crl_parse_file (mbedtls_x509_crl *chain, const char *path)
| Load one or more CRLs and append them to the chained list. More...
int | mbedtls_x509_crl_info (char *buf, size_t size, const char *prefix, const mbedtls_x509_crl *crl)
| Returns an informational string about the CRL. More...
void | mbedtls_x509_crl_init (mbedtls_x509_crl *crl)
| Initialize a CRL (chain) More...
void | mbedtls_x509_crl_free (mbedtls_x509_crl *crl)
| Unallocate all CRL data. More...

## Structures and functions for parsing and writing X.509 certificates
typedef struct mbedtls_x509_crt | mbedtls_x509_crt
typedef struct mbedtls_x509_san_other_name | mbedtls_x509_san_other_name
typedef struct mbedtls_x509_subject_alternative_name | mbedtls_x509_subject_alternative_name
typedef struct mbedtls_x509_crt_profile | mbedtls_x509_crt_profile
typedef struct mbedtls_x509write_cert | mbedtls_x509write_cert
typedef void | mbedtls_x509_crt_restart_ctx
typedef int(* | mbedtls_x509_crt_ext_cb_t) (void *p_ctx, mbedtls_x509_crt const *crt, mbedtls_x509_buf const *oid, int critical, const unsigned char *p, const unsigned char *end)
| The type of certificate extension callbacks. More...
typedef int(* | mbedtls_x509_crt_ca_cb_t) (void *p_ctx, mbedtls_x509_crt const *child, mbedtls_x509_crt **candidate_cas)
| The type of trusted certificate callbacks. More...
const mbedtls_x509_crt_profile | mbedtls_x509_crt_profile_default
const mbedtls_x509_crt_profile | mbedtls_x509_crt_profile_next
const mbedtls_x509_crt_profile | mbedtls_x509_crt_profile_suiteb
int | mbedtls_x509_crt_parse_der (mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen)
| Parse a single DER formatted certificate and add it to the end of the provided chained list. More...
int | mbedtls_x509_crt_parse_der_with_ext_cb (mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen, int make_copy, mbedtls_x509_crt_ext_cb_t cb, void *p_ctx)
| Parse a single DER formatted certificate and add it to the end of the provided chained list. More...
int | mbedtls_x509_crt_parse_der_nocopy (mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen)
| Parse a single DER formatted certificate and add it to the end of the provided chained list. This is a variant of mbedtls_x509_crt_parse_der() which takes temporary ownership of the CRT buffer until the CRT is destroyed. More...
int | mbedtls_x509_crt_parse (mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen)
| Parse one DER-encoded or one or more concatenated PEM-encoded certificates and add them to the chained list. More...
int | mbedtls_x509_crt_parse_file (mbedtls_x509_crt *chain, const char *path)
| Load one or more certificates and add them to the chained list. Parses permissively. If some certificates can be parsed, the result is the number of failed certificates it encountered. If none complete correctly, the first error is returned. More...
int | mbedtls_x509_crt_parse_path (mbedtls_x509_crt *chain, const char *path)
| Load one or more certificate files from a path and add them to the chained list. Parses permissively. If some certificates can be parsed, the result is the number of failed certificates it encountered. If none complete correctly, the first error is returned. More...
int | mbedtls_x509_parse_subject_alt_name (const mbedtls_x509_buf *san_buf, mbedtls_x509_subject_alternative_name *san)
| This function parses an item in the SubjectAlternativeNames extension. More...
int | mbedtls_x509_crt_info (char *buf, size_t size, const char *prefix, const mbedtls_x509_crt *crt)
| Returns an informational string about the certificate. More...
int | mbedtls_x509_crt_verify_info (char *buf, size_t size, const char *prefix, uint32_t flags)
| Returns an informational string about the verification status of a certificate. More...
int | mbedtls_x509_crt_verify (mbedtls_x509_crt *crt, mbedtls_x509_crt *trust_ca, mbedtls_x509_crl *ca_crl, const char *cn, uint32_t *flags, int(*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), void *p_vrfy)
| Verify a chain of certificates. More...
int | mbedtls_x509_crt_verify_with_profile (mbedtls_x509_crt *crt, mbedtls_x509_crt *trust_ca, mbedtls_x509_crl *ca_crl, const mbedtls_x509_crt_profile *profile, const char *cn, uint32_t *flags, int(*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), void *p_vrfy)
| Verify a chain of certificates with respect to a configurable security profile. More...
int | mbedtls_x509_crt_verify_restartable (mbedtls_x509_crt *crt, mbedtls_x509_crt *trust_ca, mbedtls_x509_crl *ca_crl, const mbedtls_x509_crt_profile *profile, const char *cn, uint32_t *flags, int(*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), void *p_vrfy, mbedtls_x509_crt_restart_ctx *rs_ctx)
| Restartable version of `mbedtls_crt_verify_with_profile()` More...
int | mbedtls_x509_crt_check_key_usage (const mbedtls_x509_crt *crt, unsigned int usage)
| Check usage of certificate against keyUsage extension. More...
int | mbedtls_x509_crt_check_extended_key_usage (const mbedtls_x509_crt *crt, const char *usage_oid, size_t usage_len)
| Check usage of certificate against extendedKeyUsage. More...
int | mbedtls_x509_crt_is_revoked (const mbedtls_x509_crt *crt, const mbedtls_x509_crl *crl)
| Verify the certificate revocation status. More...
void | mbedtls_x509_crt_init (mbedtls_x509_crt *crt)
| Initialize a certificate (chain) More...
void | mbedtls_x509_crt_free (mbedtls_x509_crt *crt)
| Unallocate all certificate data. More...
void | mbedtls_x509write_crt_init (mbedtls_x509write_cert *ctx)
| Initialize a CRT writing context. More...
void | mbedtls_x509write_crt_set_version (mbedtls_x509write_cert *ctx, int version)
| Set the verion for a Certificate Default: MBEDTLS_X509_CRT_VERSION_3. More...
int | mbedtls_x509write_crt_set_serial (mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial)
| Set the serial number for a Certificate. More...
int | mbedtls_x509write_crt_set_validity (mbedtls_x509write_cert *ctx, const char *not_before, const char *not_after)
| Set the validity period for a Certificate Timestamps should be in string format for UTC timezone i.e. "YYYYMMDDhhmmss" e.g. "20131231235959" for December 31st 2013 at 23:59:59. More...
int | mbedtls_x509write_crt_set_issuer_name (mbedtls_x509write_cert *ctx, const char *issuer_name)
| Set the issuer name for a Certificate Issuer names should contain a comma-separated list of OID types and values: e.g. "C=UK,O=ARM,CN=mbed TLS CA". More...
int | mbedtls_x509write_crt_set_subject_name (mbedtls_x509write_cert *ctx, const char *subject_name)
| Set the subject name for a Certificate Subject names should contain a comma-separated list of OID types and values: e.g. "C=UK,O=ARM,CN=mbed TLS Server 1". More...
void | mbedtls_x509write_crt_set_subject_key (mbedtls_x509write_cert *ctx, mbedtls_pk_context *key)
| Set the subject public key for the certificate. More...
void | mbedtls_x509write_crt_set_issuer_key (mbedtls_x509write_cert *ctx, mbedtls_pk_context *key)
| Set the issuer key used for signing the certificate. More...
void | mbedtls_x509write_crt_set_md_alg (mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg)
| Set the MD algorithm to use for the signature (e.g. MBEDTLS_MD_SHA1) More...
int | mbedtls_x509write_crt_set_extension (mbedtls_x509write_cert *ctx, const char *oid, size_t oid_len, int critical, const unsigned char *val, size_t val_len)
| Generic function to add to or replace an extension in the CRT. More...
int | mbedtls_x509write_crt_set_basic_constraints (mbedtls_x509write_cert *ctx, int is_ca, int max_pathlen)
| Set the basicConstraints extension for a CRT. More...
int | mbedtls_x509write_crt_set_subject_key_identifier (mbedtls_x509write_cert *ctx)
| Set the subjectKeyIdentifier extension for a CRT Requires that mbedtls_x509write_crt_set_subject_key() has been called before. More...
int | mbedtls_x509write_crt_set_authority_key_identifier (mbedtls_x509write_cert *ctx)
| Set the authorityKeyIdentifier extension for a CRT Requires that mbedtls_x509write_crt_set_issuer_key() has been called before. More...
int | mbedtls_x509write_crt_set_key_usage (mbedtls_x509write_cert *ctx, unsigned int key_usage)
| Set the Key Usage Extension flags (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN) More...
int | mbedtls_x509write_crt_set_ns_cert_type (mbedtls_x509write_cert *ctx, unsigned char ns_cert_type)
| Set the Netscape Cert Type flags (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL) More...
void | mbedtls_x509write_crt_free (mbedtls_x509write_cert *ctx)
| Free the contents of a CRT write context. More...
int | mbedtls_x509write_crt_der (mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
| Write a built up certificate to a X509 DER structure Note: data is written at the end of the buffer! Use the return value to determine where you should start using the buffer. More...
int | mbedtls_x509write_crt_pem (mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
| Write a built up certificate to a X509 PEM string. More...
#define | MBEDTLS_X509_ID_FLAG(id) ( 1 << ( (id) - 1 ) )
#define | MBEDTLS_X509_CRT_VERSION_1 0
#define | MBEDTLS_X509_CRT_VERSION_2 1
#define | MBEDTLS_X509_CRT_VERSION_3 2
#define | MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN 32
#define | MBEDTLS_X509_RFC5280_UTC_TIME_LEN 15
#define | MBEDTLS_X509_MAX_FILE_PATH_LEN 512
#define | MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE ( MBEDTLS_X509_MAX_INTERMEDIATE_CA + 2 )

## Structures and functions for X.509 Certificate Signing Requests (CSR)
typedef struct mbedtls_x509_csr | mbedtls_x509_csr
typedef struct mbedtls_x509write_csr | mbedtls_x509write_csr
int | mbedtls_x509_csr_parse_der (mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen)
| Load a Certificate Signing Request (CSR) in DER format. More...
int | mbedtls_x509_csr_parse (mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen)
| Load a Certificate Signing Request (CSR), DER or PEM format. More...
int | mbedtls_x509_csr_parse_file (mbedtls_x509_csr *csr, const char *path)
| Load a Certificate Signing Request (CSR) More...
int | mbedtls_x509_csr_info (char *buf, size_t size, const char *prefix, const mbedtls_x509_csr *csr)
| Returns an informational string about the CSR. More...
void | mbedtls_x509_csr_init (mbedtls_x509_csr *csr)
| Initialize a CSR. More...
void | mbedtls_x509_csr_free (mbedtls_x509_csr *csr)
| Unallocate all CSR data. More...
void | mbedtls_x509write_csr_init (mbedtls_x509write_csr *ctx)
| Initialize a CSR context. More...
int | mbedtls_x509write_csr_set_subject_name (mbedtls_x509write_csr *ctx, const char *subject_name)
| Set the subject name for a CSR Subject names should contain a comma-separated list of OID types and values: e.g. "C=UK,O=ARM,CN=mbed TLS Server 1". More...
void | mbedtls_x509write_csr_set_key (mbedtls_x509write_csr *ctx, mbedtls_pk_context *key)
| Set the key for a CSR (public key will be included, private key used to sign the CSR when writing it) More...
void | mbedtls_x509write_csr_set_md_alg (mbedtls_x509write_csr *ctx, mbedtls_md_type_t md_alg)
| Set the MD algorithm to use for the signature (e.g. MBEDTLS_MD_SHA1) More...
int | mbedtls_x509write_csr_set_key_usage (mbedtls_x509write_csr *ctx, unsigned char key_usage)
| Set the Key Usage Extension flags (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN) More...
int | mbedtls_x509write_csr_set_ns_cert_type (mbedtls_x509write_csr *ctx, unsigned char ns_cert_type)
| Set the Netscape Cert Type flags (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL) More...
int | mbedtls_x509write_csr_set_extension (mbedtls_x509write_csr *ctx, const char *oid, size_t oid_len, const unsigned char *val, size_t val_len)
| Generic function to add to or replace an extension in the CSR. More...
void | mbedtls_x509write_csr_free (mbedtls_x509write_csr *ctx)
| Free the contents of a CSR context. More...
int | mbedtls_x509write_csr_der (mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
| Write a CSR (Certificate Signing Request) to a DER structure Note: data is written at the end of the buffer! Use the return value to determine where you should start using the buffer. More...
int | mbedtls_x509write_csr_pem (mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
| Write a CSR (Certificate Signing Request) to a PEM string. More...

## Detailed Description

The X.509 module provides X.509 support for reading, writing and verification of certificates. In summary:

- X.509 certificate (CRT) reading (see `mbedtls_x509_crt_parse()`, `mbedtls_x509_crt_parse_der()`, `mbedtls_x509_crt_parse_file()`).
- X.509 certificate revocation list (CRL) reading (see `mbedtls_x509_crl_parse()`, `mbedtls_x509_crl_parse_der()`, and `mbedtls_x509_crl_parse_file()`).
- X.509 certificate signature verification (see `mbedtls_x509_crt_verify()` and `mbedtls_x509_crt_verify_with_profile()`.
- X.509 certificate writing and certificate request writing (see `mbedtls_x509write_crt_der()` and `mbedtls_x509write_csr_der()`).

This module can be used to build a certificate authority (CA) chain and verify its signature. It is also used to generate Certificate Signing Requests and X.509 certificates just as a CA would do.

## Macro Definition Documentation

## ◆ MBEDTLS_ERR_X509_ALLOC_FAILED

#define MBEDTLS_ERR_X509_ALLOC_FAILED -0x2880

Allocation of memory failed.

Definition at line 78 of file x509.h.

## ◆ MBEDTLS_ERR_X509_BAD_INPUT_DATA

#define MBEDTLS_ERR_X509_BAD_INPUT_DATA -0x2800

Input invalid.

Definition at line 77 of file x509.h.

## ◆ MBEDTLS_ERR_X509_BUFFER_TOO_SMALL

#define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL -0x2980

Destination buffer is too small.

Definition at line 80 of file x509.h.

## ◆ MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT

#define MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT -0x2780

Format not recognized as DER or PEM.

Definition at line 76 of file x509.h.

## ◆ MBEDTLS_ERR_X509_CERT_VERIFY_FAILED

#define MBEDTLS_ERR_X509_CERT_VERIFY_FAILED -0x2700

Certificate verification failed, e.g. CRL, CA or signature check failed.

Definition at line 75 of file x509.h.

## ◆ MBEDTLS_ERR_X509_FATAL_ERROR

#define MBEDTLS_ERR_X509_FATAL_ERROR -0x3000

A fatal error occurred, eg the chain is too long or the vrfy callback failed.

Definition at line 81 of file x509.h.

## ◆ MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE

#define MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE -0x2080

Unavailable feature, e.g. RSA hashing/encryption combination.

Definition at line 62 of file x509.h.

## ◆ MBEDTLS_ERR_X509_FILE_IO_ERROR

#define MBEDTLS_ERR_X509_FILE_IO_ERROR -0x2900

Read/write of file failed.

Definition at line 79 of file x509.h.

## ◆ MBEDTLS_ERR_X509_INVALID_ALG

#define MBEDTLS_ERR_X509_INVALID_ALG -0x2300

The algorithm tag or value is invalid.

Definition at line 67 of file x509.h.

## ◆ MBEDTLS_ERR_X509_INVALID_DATE

#define MBEDTLS_ERR_X509_INVALID_DATE -0x2400

The date tag or value is invalid.

Definition at line 69 of file x509.h.

## ◆ MBEDTLS_ERR_X509_INVALID_EXTENSIONS

#define MBEDTLS_ERR_X509_INVALID_EXTENSIONS -0x2500

The extension tag or value is invalid.

Definition at line 71 of file x509.h.

## ◆ MBEDTLS_ERR_X509_INVALID_FORMAT

#define MBEDTLS_ERR_X509_INVALID_FORMAT -0x2180

The CRT/CRL/CSR format is invalid, e.g. different type expected.

Definition at line 64 of file x509.h.

## ◆ MBEDTLS_ERR_X509_INVALID_NAME

#define MBEDTLS_ERR_X509_INVALID_NAME -0x2380

The name tag or value is invalid.

Definition at line 68 of file x509.h.

## ◆ MBEDTLS_ERR_X509_INVALID_SERIAL

#define MBEDTLS_ERR_X509_INVALID_SERIAL -0x2280

The serial tag or value is invalid.

Definition at line 66 of file x509.h.

## ◆ MBEDTLS_ERR_X509_INVALID_SIGNATURE

#define MBEDTLS_ERR_X509_INVALID_SIGNATURE -0x2480

The signature tag or value invalid.

Definition at line 70 of file x509.h.

## ◆ MBEDTLS_ERR_X509_INVALID_VERSION

#define MBEDTLS_ERR_X509_INVALID_VERSION -0x2200

The CRT/CRL/CSR version element is invalid.

Definition at line 65 of file x509.h.

## ◆ MBEDTLS_ERR_X509_SIG_MISMATCH

#define MBEDTLS_ERR_X509_SIG_MISMATCH -0x2680

Signature algorithms do not match. (see `mbedtls_x509_crt` sig_oid)

Definition at line 74 of file x509.h.

## ◆ MBEDTLS_ERR_X509_UNKNOWN_OID

#define MBEDTLS_ERR_X509_UNKNOWN_OID -0x2100

Requested OID is unknown.

Definition at line 63 of file x509.h.

## ◆ MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG

#define MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG -0x2600

Signature algorithm (oid) is unsupported.

Definition at line 73 of file x509.h.

## ◆ MBEDTLS_ERR_X509_UNKNOWN_VERSION

#define MBEDTLS_ERR_X509_UNKNOWN_VERSION -0x2580

CRT/CRL/CSR has an unsupported version number.

Definition at line 72 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_BAD_KEY

#define MBEDTLS_X509_BADCERT_BAD_KEY 0x010000

The certificate is signed with an unacceptable key (eg bad curve, RSA too short).

Definition at line 105 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_BAD_MD

#define MBEDTLS_X509_BADCERT_BAD_MD 0x4000

The certificate is signed with an unacceptable hash.

Definition at line 103 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_BAD_PK

#define MBEDTLS_X509_BADCERT_BAD_PK 0x8000

The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA).

Definition at line 104 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_CN_MISMATCH

#define MBEDTLS_X509_BADCERT_CN_MISMATCH 0x04

The certificate Common Name (CN) does not match with the expected CN.

Definition at line 91 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_EXPIRED

#define MBEDTLS_X509_BADCERT_EXPIRED 0x01

The certificate validity has expired.

Definition at line 89 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_EXT_KEY_USAGE

#define MBEDTLS_X509_BADCERT_EXT_KEY_USAGE 0x1000

Usage does not match the extendedKeyUsage extension.

Definition at line 101 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_FUTURE

#define MBEDTLS_X509_BADCERT_FUTURE 0x0200

The certificate validity starts in the future.

Definition at line 98 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_KEY_USAGE

#define MBEDTLS_X509_BADCERT_KEY_USAGE 0x0800

Usage does not match the keyUsage extension.

Definition at line 100 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_MISSING

#define MBEDTLS_X509_BADCERT_MISSING 0x40

Certificate was missing.

Definition at line 95 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_NOT_TRUSTED

#define MBEDTLS_X509_BADCERT_NOT_TRUSTED 0x08

The certificate is not correctly signed by the trusted CA.

Definition at line 92 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_NS_CERT_TYPE

#define MBEDTLS_X509_BADCERT_NS_CERT_TYPE 0x2000

Usage does not match the nsCertType extension.

Definition at line 102 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_OTHER

#define MBEDTLS_X509_BADCERT_OTHER 0x0100

Other reason (can be used by verify callback)

Definition at line 97 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_REVOKED

#define MBEDTLS_X509_BADCERT_REVOKED 0x02

The certificate has been revoked (is on a CRL).

Definition at line 90 of file x509.h.

## ◆ MBEDTLS_X509_BADCERT_SKIP_VERIFY

#define MBEDTLS_X509_BADCERT_SKIP_VERIFY 0x80

Certificate verification was skipped.

Definition at line 96 of file x509.h.

## ◆ MBEDTLS_X509_BADCRL_BAD_KEY

#define MBEDTLS_X509_BADCRL_BAD_KEY 0x080000

The CRL is signed with an unacceptable key (eg bad curve, RSA too short).

Definition at line 108 of file x509.h.

## ◆ MBEDTLS_X509_BADCRL_BAD_MD

#define MBEDTLS_X509_BADCRL_BAD_MD 0x020000

The CRL is signed with an unacceptable hash.

Definition at line 106 of file x509.h.

## ◆ MBEDTLS_X509_BADCRL_BAD_PK

#define MBEDTLS_X509_BADCRL_BAD_PK 0x040000

The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA).

Definition at line 107 of file x509.h.

## ◆ MBEDTLS_X509_BADCRL_EXPIRED

#define MBEDTLS_X509_BADCRL_EXPIRED 0x20

The CRL is expired.

Definition at line 94 of file x509.h.

## ◆ MBEDTLS_X509_BADCRL_FUTURE

#define MBEDTLS_X509_BADCRL_FUTURE 0x0400

The CRL is from the future

Definition at line 99 of file x509.h.

## ◆ MBEDTLS_X509_BADCRL_NOT_TRUSTED

#define MBEDTLS_X509_BADCRL_NOT_TRUSTED 0x10

The CRL is not correctly signed by the trusted CA.

Definition at line 93 of file x509.h.

## ◆ MBEDTLS_X509_CRT_VERSION_1

#define MBEDTLS_X509_CRT_VERSION_1 0

Definition at line 171 of file x509_crt.h.

## ◆ MBEDTLS_X509_CRT_VERSION_2

#define MBEDTLS_X509_CRT_VERSION_2 1

Definition at line 172 of file x509_crt.h.

## ◆ MBEDTLS_X509_CRT_VERSION_3

#define MBEDTLS_X509_CRT_VERSION_3 2

Definition at line 173 of file x509_crt.h.

## ◆ MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER

#define MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_AUTHORITY_KEY_IDENTIFIER

Definition at line 172 of file x509.h.

## ◆ MBEDTLS_X509_EXT_BASIC_CONSTRAINTS

#define MBEDTLS_X509_EXT_BASIC_CONSTRAINTS MBEDTLS_OID_X509_EXT_BASIC_CONSTRAINTS /* Supported */

Definition at line 180 of file x509.h.

## ◆ MBEDTLS_X509_EXT_CERTIFICATE_POLICIES

#define MBEDTLS_X509_EXT_CERTIFICATE_POLICIES MBEDTLS_OID_X509_EXT_CERTIFICATE_POLICIES

Definition at line 175 of file x509.h.

## ◆ MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS

#define MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS MBEDTLS_OID_X509_EXT_CRL_DISTRIBUTION_POINTS

Definition at line 184 of file x509.h.

## ◆ MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE

#define MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE MBEDTLS_OID_X509_EXT_EXTENDED_KEY_USAGE

Definition at line 183 of file x509.h.

## ◆ MBEDTLS_X509_EXT_FRESHEST_CRL

#define MBEDTLS_X509_EXT_FRESHEST_CRL MBEDTLS_OID_X509_EXT_FRESHEST_CRL

Definition at line 186 of file x509.h.

## ◆ MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY

#define MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY MBEDTLS_OID_X509_EXT_INIHIBIT_ANYPOLICY

Definition at line 185 of file x509.h.

## ◆ MBEDTLS_X509_EXT_ISSUER_ALT_NAME

#define MBEDTLS_X509_EXT_ISSUER_ALT_NAME MBEDTLS_OID_X509_EXT_ISSUER_ALT_NAME

Definition at line 178 of file x509.h.

## ◆ MBEDTLS_X509_EXT_KEY_USAGE

#define MBEDTLS_X509_EXT_KEY_USAGE MBEDTLS_OID_X509_EXT_KEY_USAGE

Definition at line 174 of file x509.h.

## ◆ MBEDTLS_X509_EXT_NAME_CONSTRAINTS

#define MBEDTLS_X509_EXT_NAME_CONSTRAINTS MBEDTLS_OID_X509_EXT_NAME_CONSTRAINTS

Definition at line 181 of file x509.h.

## ◆ MBEDTLS_X509_EXT_NS_CERT_TYPE

#define MBEDTLS_X509_EXT_NS_CERT_TYPE MBEDTLS_OID_X509_EXT_NS_CERT_TYPE

Definition at line 187 of file x509.h.

## ◆ MBEDTLS_X509_EXT_POLICY_CONSTRAINTS

#define MBEDTLS_X509_EXT_POLICY_CONSTRAINTS MBEDTLS_OID_X509_EXT_POLICY_CONSTRAINTS

Definition at line 182 of file x509.h.

## ◆ MBEDTLS_X509_EXT_POLICY_MAPPINGS

#define MBEDTLS_X509_EXT_POLICY_MAPPINGS MBEDTLS_OID_X509_EXT_POLICY_MAPPINGS

Definition at line 176 of file x509.h.

## ◆ MBEDTLS_X509_EXT_SUBJECT_ALT_NAME

#define MBEDTLS_X509_EXT_SUBJECT_ALT_NAME MBEDTLS_OID_X509_EXT_SUBJECT_ALT_NAME /* Supported (DNS) */

Definition at line 177 of file x509.h.

## ◆ MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS

#define MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS MBEDTLS_OID_X509_EXT_SUBJECT_DIRECTORY_ATTRS

Definition at line 179 of file x509.h.

## ◆ MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER

#define MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_SUBJECT_KEY_IDENTIFIER

Definition at line 173 of file x509.h.

## ◆ MBEDTLS_X509_FORMAT_DER

#define MBEDTLS_X509_FORMAT_DER 1

Definition at line 193 of file x509.h.

## ◆ MBEDTLS_X509_FORMAT_PEM

#define MBEDTLS_X509_FORMAT_PEM 2

Definition at line 194 of file x509.h.

## ◆ MBEDTLS_X509_ID_FLAG

#define MBEDTLS_X509_ID_FLAG | ( |  | id | ) | ( 1 << ( (id) - 1 ) )

Build flag from an algorithm/curve identifier (pk, md, ecp) Since 0 is always XXX_NONE, ignore it.

Definition at line 155 of file x509_crt.h.

## ◆ MBEDTLS_X509_KU_CRL_SIGN

#define MBEDTLS_X509_KU_CRL_SIGN (0x02) /* bit 6 */

Definition at line 145 of file x509.h.

## ◆ MBEDTLS_X509_KU_DATA_ENCIPHERMENT

#define MBEDTLS_X509_KU_DATA_ENCIPHERMENT (0x10) /* bit 3 */

Definition at line 142 of file x509.h.

## ◆ MBEDTLS_X509_KU_DECIPHER_ONLY

#define MBEDTLS_X509_KU_DECIPHER_ONLY (0x8000) /* bit 8 */

Definition at line 147 of file x509.h.

## ◆ MBEDTLS_X509_KU_DIGITAL_SIGNATURE

#define MBEDTLS_X509_KU_DIGITAL_SIGNATURE (0x80) /* bit 0 */

Definition at line 139 of file x509.h.

## ◆ MBEDTLS_X509_KU_ENCIPHER_ONLY

#define MBEDTLS_X509_KU_ENCIPHER_ONLY (0x01) /* bit 7 */

Definition at line 146 of file x509.h.

## ◆ MBEDTLS_X509_KU_KEY_AGREEMENT

#define MBEDTLS_X509_KU_KEY_AGREEMENT (0x08) /* bit 4 */

Definition at line 143 of file x509.h.

## ◆ MBEDTLS_X509_KU_KEY_CERT_SIGN

#define MBEDTLS_X509_KU_KEY_CERT_SIGN (0x04) /* bit 5 */

Definition at line 144 of file x509.h.

## ◆ MBEDTLS_X509_KU_KEY_ENCIPHERMENT

#define MBEDTLS_X509_KU_KEY_ENCIPHERMENT (0x20) /* bit 2 */

Definition at line 141 of file x509.h.

## ◆ MBEDTLS_X509_KU_NON_REPUDIATION

#define MBEDTLS_X509_KU_NON_REPUDIATION (0x40) /* bit 1 */

Definition at line 140 of file x509.h.

## ◆ MBEDTLS_X509_MAX_DN_NAME_SIZE

#define MBEDTLS_X509_MAX_DN_NAME_SIZE 256

Maximum value size of a DN entry

Definition at line 196 of file x509.h.

## ◆ MBEDTLS_X509_MAX_FILE_PATH_LEN

#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512

Definition at line 179 of file x509_crt.h.

## ◆ MBEDTLS_X509_MAX_INTERMEDIATE_CA

#define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8

Maximum number of intermediate CAs in a verification chain. That is, maximum length of the chain, excluding the end-entity certificate and the trusted root certificate.

Set this to a low value to prevent an adversary from making you waste resources verifying an overlong certificate chain.

Definition at line 55 of file x509.h.

## ◆ MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE

#define MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE ( MBEDTLS_X509_MAX_INTERMEDIATE_CA + 2 )

Max size of verification chain: end-entity + intermediates + trusted root

Definition at line 211 of file x509_crt.h.

## ◆ MBEDTLS_X509_NS_CERT_TYPE_EMAIL

#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL (0x20) /* bit 2 */

Definition at line 156 of file x509.h.

## ◆ MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA

#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA (0x02) /* bit 6 */

Definition at line 160 of file x509.h.

## ◆ MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING

#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING (0x10) /* bit 3 */

Definition at line 157 of file x509.h.

## ◆ MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA

#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA (0x01) /* bit 7 */

Definition at line 161 of file x509.h.

## ◆ MBEDTLS_X509_NS_CERT_TYPE_RESERVED

#define MBEDTLS_X509_NS_CERT_TYPE_RESERVED (0x08) /* bit 4 */

Definition at line 158 of file x509.h.

## ◆ MBEDTLS_X509_NS_CERT_TYPE_SSL_CA

#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CA (0x04) /* bit 5 */

Definition at line 159 of file x509.h.

## ◆ MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT

#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT (0x80) /* bit 0 */

Definition at line 154 of file x509.h.

## ◆ MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER

#define MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER (0x40) /* bit 1 */

Definition at line 155 of file x509.h.

## ◆ MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN

#define MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN 32

Definition at line 175 of file x509_crt.h.

## ◆ MBEDTLS_X509_RFC5280_UTC_TIME_LEN

#define MBEDTLS_X509_RFC5280_UTC_TIME_LEN 15

Definition at line 176 of file x509_crt.h.

## ◆ MBEDTLS_X509_SAFE_SNPRINTF

#define MBEDTLS_X509_SAFE_SNPRINTF

Value:
do { \
if( ret < 0 || (size_t) ret >= n ) \
return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL ); \
\
n -= (size_t) ret; \
p += (size_t) ret; \
} while( 0 )

Definition at line 349 of file x509.h.

## ◆ MBEDTLS_X509_SAN_DIRECTORY_NAME

#define MBEDTLS_X509_SAN_DIRECTORY_NAME 4

Definition at line 129 of file x509.h.

## ◆ MBEDTLS_X509_SAN_DNS_NAME

#define MBEDTLS_X509_SAN_DNS_NAME 2

Definition at line 127 of file x509.h.

## ◆ MBEDTLS_X509_SAN_EDI_PARTY_NAME

#define MBEDTLS_X509_SAN_EDI_PARTY_NAME 5

Definition at line 130 of file x509.h.

## ◆ MBEDTLS_X509_SAN_IP_ADDRESS

#define MBEDTLS_X509_SAN_IP_ADDRESS 7

Definition at line 132 of file x509.h.

## ◆ MBEDTLS_X509_SAN_OTHER_NAME

#define MBEDTLS_X509_SAN_OTHER_NAME 0

Definition at line 125 of file x509.h.

## ◆ MBEDTLS_X509_SAN_REGISTERED_ID

#define MBEDTLS_X509_SAN_REGISTERED_ID 8

Definition at line 133 of file x509.h.

## ◆ MBEDTLS_X509_SAN_RFC822_NAME

#define MBEDTLS_X509_SAN_RFC822_NAME 1

Definition at line 126 of file x509.h.

## ◆ MBEDTLS_X509_SAN_UNIFORM_RESOURCE_IDENTIFIER

#define MBEDTLS_X509_SAN_UNIFORM_RESOURCE_IDENTIFIER 6

Definition at line 131 of file x509.h.

## ◆ MBEDTLS_X509_SAN_X400_ADDRESS_NAME

#define MBEDTLS_X509_SAN_X400_ADDRESS_NAME 3

Definition at line 128 of file x509.h.

## Typedef Documentation

## ◆ mbedtls_x509_bitstring

typedef mbedtls_asn1_bitstring mbedtls_x509_bitstring

Container for ASN1 bit strings.

Definition at line 218 of file x509.h.

## ◆ mbedtls_x509_buf

typedef mbedtls_asn1_buf mbedtls_x509_buf

Type-length-value structure that allows for ASN1 using DER.

Definition at line 213 of file x509.h.

## ◆ mbedtls_x509_crl

typedef struct mbedtls_x509_crl mbedtls_x509_crl

Certificate revocation list structure. Every CRL may have multiple entries.

## ◆ mbedtls_x509_crl_entry

typedef struct mbedtls_x509_crl_entry mbedtls_x509_crl_entry

Certificate revocation list entry. Contains the CA-specific serial numbers and revocation dates.

## ◆ mbedtls_x509_crt

typedef struct mbedtls_x509_crt mbedtls_x509_crt

Container for an X.509 certificate. The certificate may be chained.

## ◆ mbedtls_x509_crt_ca_cb_t

typedef int(* mbedtls_x509_crt_ca_cb_t) (void *p_ctx, mbedtls_x509_crt const *child, mbedtls_x509_crt **candidate_cas)

The type of trusted certificate callbacks.

                     Callbacks of this type are passed to and used by the CRT
                     verification routine mbedtls_x509_crt_verify_with_ca_cb()
                     when looking for trusted signers of a given certificate.

                     On success, the callback returns a list of trusted
                     certificates to be considered as potential signers
                     for the input certificate.

Parameters

  p_ctx | An opaque context passed to the callback.
  child | The certificate for which to search a potential signer. This will point to a readable certificate.
  candidate_cas | The address at which to store the address of the first entry in the generated linked list of candidate signers. This will not be `NULL`.

Note
  The callback must only return a non-zero value on a fatal error. If, in contrast, the search for a potential signer completes without a single candidate, the callback must return `0` and set `*candidate_cas` to `NULL`.

Returns
  `0` on success. In this case, `*candidate_cas` points to a heap-allocated linked list of instances of mbedtls_x509_crt, and ownership of this list is passed to the caller.
  A negative error code on failure.

Definition at line 721 of file x509_crt.h.

## ◆ mbedtls_x509_crt_ext_cb_t

typedef int(* mbedtls_x509_crt_ext_cb_t) (void *p_ctx, mbedtls_x509_crt const *crt, mbedtls_x509_buf const *oid, int critical, const unsigned char *p, const unsigned char *end)

The type of certificate extension callbacks.

                Callbacks of this type are passed to and used by the
                mbedtls_x509_crt_parse_der_with_ext_cb() routine when
                it encounters either an unsupported extension or a
                "certificate policies" extension containing any
                unsupported certificate policies.
                Future versions of the library may invoke the callback
                in other cases, if and when the need arises.

Parameters

  p_ctx | An opaque context passed to the callback.
  crt | The certificate being parsed.
  oid | The OID of the extension.
  critical | Whether the extension is critical.
  p | Pointer to the start of the extension value (the content of the OCTET STRING).
  end | End of extension value.

Note
  The callback must fail and return a negative error code if it can not parse or does not support the extension. When the callback fails to parse a critical extension mbedtls_x509_crt_parse_der_with_ext_cb() also fails. When the callback fails to parse a non critical extension mbedtls_x509_crt_parse_der_with_ext_cb() simply skips the extension and continues parsing.

Returns
  `0` on success.
  A negative error code on failure.

Definition at line 336 of file x509_crt.h.

## ◆ mbedtls_x509_crt_profile

typedef struct mbedtls_x509_crt_profile mbedtls_x509_crt_profile

Security profile for certificate verification.

All lists are bitfields, built by ORing flags from MBEDTLS_X509_ID_FLAG().

## ◆ mbedtls_x509_crt_restart_ctx

typedef void mbedtls_x509_crt_restart_ctx

Definition at line 260 of file x509_crt.h.

## ◆ mbedtls_x509_csr

typedef struct mbedtls_x509_csr mbedtls_x509_csr

Certificate Signing Request (CSR) structure.

## ◆ mbedtls_x509_name

typedef mbedtls_asn1_named_data mbedtls_x509_name

Container for ASN1 named information objects. It allows for Relative Distinguished Names (e.g. cn=localhost,ou=code,etc.).

Definition at line 224 of file x509.h.

## ◆ mbedtls_x509_san_other_name

typedef struct mbedtls_x509_san_other_name mbedtls_x509_san_other_name

From RFC 5280 section 4.2.1.6: OtherName ::= SEQUENCE { type-id OBJECT IDENTIFIER, value [0] EXPLICIT ANY DEFINED BY type-id }

## ◆ mbedtls_x509_sequence

typedef mbedtls_asn1_sequence mbedtls_x509_sequence

Container for a sequence of ASN.1 items

Definition at line 229 of file x509.h.

## ◆ mbedtls_x509_subject_alternative_name

typedef struct mbedtls_x509_subject_alternative_name mbedtls_x509_subject_alternative_name

A structure for holding the parsed Subject Alternative Name, according to type

## ◆ mbedtls_x509_time

typedef struct mbedtls_x509_time mbedtls_x509_time

Container for date and time (precision in seconds).

## ◆ mbedtls_x509write_cert

typedef struct mbedtls_x509write_cert mbedtls_x509write_cert

Container for writing a certificate (CRT)

## ◆ mbedtls_x509write_csr

typedef struct mbedtls_x509write_csr mbedtls_x509write_csr

Container for writing a CSR

## Function Documentation

## ◆ mbedtls_x509_crl_free()

void mbedtls_x509_crl_free | ( | mbedtls_x509_crl * | crl | ) |

Unallocate all CRL data.

Parameters

  crl | CRL chain to free

## ◆ mbedtls_x509_crl_info()

int mbedtls_x509_crl_info | ( | char * | buf,
|  | size_t | size,
|  | const char * | prefix,
|  | const mbedtls_x509_crl * | crl
| ) |  |

Returns an informational string about the CRL.

Parameters

  buf | Buffer to write to
  size | Maximum size of buffer
  prefix | A line prefix
  crl | The X509 CRL to represent

Returns
  The length of the string written (not including the terminated nul byte), or a negative error code.

## ◆ mbedtls_x509_crl_init()

void mbedtls_x509_crl_init | ( | mbedtls_x509_crl * | crl | ) |

Initialize a CRL (chain)

Parameters

  crl | CRL chain to initialize

## ◆ mbedtls_x509_crl_parse()

int mbedtls_x509_crl_parse | ( | mbedtls_x509_crl * | chain,
|  | const unsigned char * | buf,
|  | size_t | buflen
| ) |  |

Parse one or more CRLs and append them to the chained list.

Note
  Multiple CRLs are accepted only if using PEM format

Parameters

  chain | points to the start of the chain
  buf | buffer holding the CRL data in PEM or DER format
  buflen | size of the buffer (including the terminating null byte for PEM data)

Returns
  0 if successful, or a specific X509 or PEM error code

## ◆ mbedtls_x509_crl_parse_der()

int mbedtls_x509_crl_parse_der | ( | mbedtls_x509_crl * | chain,
|  | const unsigned char * | buf,
|  | size_t | buflen
| ) |  |

Parse a DER-encoded CRL and append it to the chained list.

Parameters

  chain | points to the start of the chain
  buf | buffer holding the CRL data in DER format
  buflen | size of the buffer (including the terminating null byte for PEM data)

Returns
  0 if successful, or a specific X509 or PEM error code

## ◆ mbedtls_x509_crl_parse_file()

int mbedtls_x509_crl_parse_file | ( | mbedtls_x509_crl * | chain,
|  | const char * | path
| ) |  |

Load one or more CRLs and append them to the chained list.

Note
  Multiple CRLs are accepted only if using PEM format

Parameters

  chain | points to the start of the chain
  path | filename to read the CRLs from (in PEM or DER encoding)

Returns
  0 if successful, or a specific X509 or PEM error code

## ◆ mbedtls_x509_crt_check_extended_key_usage()

int mbedtls_x509_crt_check_extended_key_usage | ( | const mbedtls_x509_crt * | crt,
|  | const char * | usage_oid,
|  | size_t | usage_len
| ) |  |

Check usage of certificate against extendedKeyUsage.

Parameters

  crt | Leaf certificate used.
  usage_oid | Intended usage (eg MBEDTLS_OID_SERVER_AUTH or MBEDTLS_OID_CLIENT_AUTH).
  usage_len | Length of usage_oid (eg given by MBEDTLS_OID_SIZE()).

Returns
  0 if this use of the certificate is allowed, MBEDTLS_ERR_X509_BAD_INPUT_DATA if not.

Note
  Usually only makes sense on leaf certificates.

## ◆ mbedtls_x509_crt_check_key_usage()

int mbedtls_x509_crt_check_key_usage | ( | const mbedtls_x509_crt * | crt,
|  | unsigned int | usage
| ) |  |

Check usage of certificate against keyUsage extension.

Parameters

  crt | Leaf certificate used.
  usage | Intended usage(s) (eg MBEDTLS_X509_KU_KEY_ENCIPHERMENT before using the certificate to perform an RSA key exchange).

Note
  Except for decipherOnly and encipherOnly, a bit set in the usage argument means this bit MUST be set in the certificate. For decipherOnly and encipherOnly, it means that bit MAY be set.

Returns
  0 is these uses of the certificate are allowed, MBEDTLS_ERR_X509_BAD_INPUT_DATA if the keyUsage extension is present but does not match the usage argument.

Note
  You should only call this function on leaf certificates, on (intermediate) CAs the keyUsage extension is automatically checked by `mbedtls_x509_crt_verify()`.

## ◆ mbedtls_x509_crt_free()

void mbedtls_x509_crt_free | ( | mbedtls_x509_crt * | crt | ) |

Unallocate all certificate data.

Parameters

  crt | Certificate chain to free

## ◆ mbedtls_x509_crt_info()

int mbedtls_x509_crt_info | ( | char * | buf,
|  | size_t | size,
|  | const char * | prefix,
|  | const mbedtls_x509_crt * | crt
| ) |  |

Returns an informational string about the certificate.

Parameters

  buf | Buffer to write to
  size | Maximum size of buffer
  prefix | A line prefix
  crt | The X509 certificate to represent

Returns
  The length of the string written (not including the terminated nul byte), or a negative error code.

## ◆ mbedtls_x509_crt_init()

void mbedtls_x509_crt_init | ( | mbedtls_x509_crt * | crt | ) |

Initialize a certificate (chain)

Parameters

  crt | Certificate chain to initialize

## ◆ mbedtls_x509_crt_is_revoked()

int mbedtls_x509_crt_is_revoked | ( | const mbedtls_x509_crt * | crt,
|  | const mbedtls_x509_crl * | crl
| ) |  |

Verify the certificate revocation status.

Parameters

  crt | a certificate to be verified
  crl | the CRL to verify against

Returns
  1 if the certificate is revoked, 0 otherwise

## ◆ mbedtls_x509_crt_parse()

int mbedtls_x509_crt_parse | ( | mbedtls_x509_crt * | chain,
|  | const unsigned char * | buf,
|  | size_t | buflen
| ) |  |

Parse one DER-encoded or one or more concatenated PEM-encoded certificates and add them to the chained list.

For CRTs in PEM encoding, the function parses permissively: if at least one certificate can be parsed, the function returns the number of certificates for which parsing failed (hence `0` if all certificates were parsed successfully). If no certificate could be parsed, the function returns the first (negative) error encountered during parsing.

PEM encoded certificates may be interleaved by other data such as human readable descriptions of their content, as long as the certificates are enclosed in the PEM specific '--—{BEGIN/END} CERTIFICATE--—' delimiters.

Parameters

  chain | The chain to which to add the parsed certificates.
  buf | The buffer holding the certificate data in PEM or DER format. For certificates in PEM encoding, this may be a concatenation of multiple certificates; for DER encoding, the buffer must comprise exactly one certificate.
  buflen | The size of `buf`, including the terminating `NULL` byte in case of PEM encoded data.

Returns
  `0` if all certificates were parsed successfully.
  The (positive) number of certificates that couldn't be parsed if parsing was partly successful (see above).
  A negative X509 or PEM error code otherwise.

## ◆ mbedtls_x509_crt_parse_der()

int mbedtls_x509_crt_parse_der | ( | mbedtls_x509_crt * | chain,
|  | const unsigned char * | buf,
|  | size_t | buflen
| ) |  |

Parse a single DER formatted certificate and add it to the end of the provided chained list.

Parameters

  chain | The pointer to the start of the CRT chain to attach to. When parsing the first CRT in a chain, this should point to an instance of mbedtls_x509_crt initialized through mbedtls_x509_crt_init().
  buf | The buffer holding the DER encoded certificate.
  buflen | The size in Bytes of `buf`.

Note
  This function makes an internal copy of the CRT buffer `buf`. In particular, `buf` may be destroyed or reused after this call returns. To avoid duplicating the CRT buffer (at the cost of stricter lifetime constraints), use mbedtls_x509_crt_parse_der_nocopy() instead.

Returns
  `0` if successful.
  A negative error code on failure.

## ◆ mbedtls_x509_crt_parse_der_nocopy()

int mbedtls_x509_crt_parse_der_nocopy | ( | mbedtls_x509_crt * | chain,
|  | const unsigned char * | buf,
|  | size_t | buflen
| ) |  |

Parse a single DER formatted certificate and add it to the end of the provided chained list. This is a variant of mbedtls_x509_crt_parse_der() which takes temporary ownership of the CRT buffer until the CRT is destroyed.

Parameters

  chain | The pointer to the start of the CRT chain to attach to. When parsing the first CRT in a chain, this should point to an instance of mbedtls_x509_crt initialized through mbedtls_x509_crt_init().
  buf | The address of the readable buffer holding the DER encoded certificate to use. On success, this buffer must be retained and not be changed for the liftetime of the CRT chain `chain`, that is, until `chain` is destroyed through a call to mbedtls_x509_crt_free().
  buflen | The size in Bytes of `buf`.

Note
  This call is functionally equivalent to mbedtls_x509_crt_parse_der(), but it avoids creating a copy of the input buffer at the cost of stronger lifetime constraints. This is useful in constrained environments where duplication of the CRT cannot be tolerated.

Returns
  `0` if successful.
  A negative error code on failure.

## ◆ mbedtls_x509_crt_parse_der_with_ext_cb()

int mbedtls_x509_crt_parse_der_with_ext_cb | ( | mbedtls_x509_crt * | chain,
|  | const unsigned char * | buf,
|  | size_t | buflen,
|  | int | make_copy,
|  | mbedtls_x509_crt_ext_cb_t | cb,
|  | void * | p_ctx
| ) |  |

Parse a single DER formatted certificate and add it to the end of the provided chained list.

Parameters

  chain | The pointer to the start of the CRT chain to attach to. When parsing the first CRT in a chain, this should point to an instance of mbedtls_x509_crt initialized through mbedtls_x509_crt_init().
  buf | The buffer holding the DER encoded certificate.
  buflen | The size in Bytes of `buf`.
  make_copy | When not zero this function makes an internal copy of the CRT buffer `buf`. In particular, `buf` may be destroyed or reused after this call returns. When zero this function avoids duplicating the CRT buffer by taking temporary ownership thereof until the CRT is destroyed (like mbedtls_x509_crt_parse_der_nocopy())
  cb | A callback invoked for every unsupported certificate extension.
  p_ctx | An opaque context passed to the callback.

Note
  This call is functionally equivalent to mbedtls_x509_crt_parse_der(), and/or mbedtls_x509_crt_parse_der_nocopy() but it calls the callback with every unsupported certificate extension and additionally the "certificate policies" extension if it contains any unsupported certificate policies. The callback must return a negative error code if it does not know how to handle such an extension. When the callback fails to parse a critical extension mbedtls_x509_crt_parse_der_with_ext_cb() also fails. When the callback fails to parse a non critical extension mbedtls_x509_crt_parse_der_with_ext_cb() simply skips the extension and continues parsing. Future versions of the library may invoke the callback in other cases, if and when the need arises.

Returns
  `0` if successful.
  A negative error code on failure.

## ◆ mbedtls_x509_crt_parse_file()

int mbedtls_x509_crt_parse_file | ( | mbedtls_x509_crt * | chain,
|  | const char * | path
| ) |  |

Load one or more certificates and add them to the chained list. Parses permissively. If some certificates can be parsed, the result is the number of failed certificates it encountered. If none complete correctly, the first error is returned.

Parameters

  chain | points to the start of the chain
  path | filename to read the certificates from

Returns
  0 if all certificates parsed successfully, a positive number if partly successful or a specific X509 or PEM error code

## ◆ mbedtls_x509_crt_parse_path()

int mbedtls_x509_crt_parse_path | ( | mbedtls_x509_crt * | chain,
|  | const char * | path
| ) |  |

Load one or more certificate files from a path and add them to the chained list. Parses permissively. If some certificates can be parsed, the result is the number of failed certificates it encountered. If none complete correctly, the first error is returned.

Parameters

  chain | points to the start of the chain
  path | directory / folder to read the certificate files from

Returns
  0 if all certificates parsed successfully, a positive number if partly successful or a specific X509 or PEM error code

## ◆ mbedtls_x509_crt_verify()

int mbedtls_x509_crt_verify | ( | mbedtls_x509_crt * | crt,
|  | mbedtls_x509_crt * | trust_ca,
|  | mbedtls_x509_crl * | ca_crl,
|  | const char * | cn,
|  | uint32_t * | flags,
|  | int(*)(void *, mbedtls_x509_crt *, int, uint32_t *) | f_vrfy,
|  | void * | p_vrfy
| ) |  |

Verify a chain of certificates.

                The verify callback is a user-supplied callback that
                can clear / modify / add flags for a certificate. If set,
                the verification callback is called for each
                certificate in the chain (from the trust-ca down to the
                presented crt). The parameters for the callback are:
                (void *parameter, mbedtls_x509_crt *crt, int certificate_depth,
                int *flags). With the flags representing current flags for
                that specific certificate and the certificate depth from
                the bottom (Peer cert depth = 0).

                All flags left after returning from the callback
                are also returned to the application. The function should
                return 0 for anything (including invalid certificates)
                other than fatal error, as a non-zero return code
                immediately aborts the verification process. For fatal
                errors, a specific error code should be used (different
                from MBEDTLS_ERR_X509_CERT_VERIFY_FAILED which should not
                be returned at this point), or MBEDTLS_ERR_X509_FATAL_ERROR
                can be used if no better code is available.

Note
  In case verification failed, the results can be displayed using `mbedtls_x509_crt_verify_info()`
  Same as `mbedtls_x509_crt_verify_with_profile()` with the default security profile.
  It is your responsibility to provide up-to-date CRLs for all trusted CAs. If no CRL is provided for the CA that was used to sign the certificate, CRL verification is skipped silently, that is without setting any flag.
  The `trust_ca` list can contain two types of certificates: (1) those of trusted root CAs, so that certificates chaining up to those CAs will be trusted, and (2) self-signed end-entity certificates to be trusted (for specific peers you know) - in that case, the self-signed certificate doesn't need to have the CA bit set.

Parameters

  crt | The certificate chain to be verified.
  trust_ca | The list of trusted CAs.
  ca_crl | The list of CRLs for trusted CAs.
  cn | The expected Common Name. This may be `NULL` if the CN need not be verified.
  flags | The address at which to store the result of the verification. If the verification couldn't be completed, the flag value is set to (uint32_t) -1.
  f_vrfy | The verification callback to use. See the documentation of mbedtls_x509_crt_verify() for more information.
  p_vrfy | The context to be passed to `f_vrfy`.

Returns
  `0` if the chain is valid with respect to the passed CN, CAs, CRLs and security profile.
  MBEDTLS_ERR_X509_CERT_VERIFY_FAILED in case the certificate chain verification failed. In this case, `*flags` will have one or more `MBEDTLS_X509_BADCERT_XXX` or `MBEDTLS_X509_BADCRL_XXX` flags set.
  Another negative error code in case of a fatal error encountered during the verification process.

## ◆ mbedtls_x509_crt_verify_info()

int mbedtls_x509_crt_verify_info | ( | char * | buf,
|  | size_t | size,
|  | const char * | prefix,
|  | uint32_t | flags
| ) |  |

Returns an informational string about the verification status of a certificate.

Parameters

  buf | Buffer to write to
  size | Maximum size of buffer
  prefix | A line prefix
  flags | Verification flags created by mbedtls_x509_crt_verify()

Returns
  The length of the string written (not including the terminated nul byte), or a negative error code.

## ◆ mbedtls_x509_crt_verify_restartable()

int mbedtls_x509_crt_verify_restartable | ( | mbedtls_x509_crt * | crt,
|  | mbedtls_x509_crt * | trust_ca,
|  | mbedtls_x509_crl * | ca_crl,
|  | const mbedtls_x509_crt_profile * | profile,
|  | const char * | cn,
|  | uint32_t * | flags,
|  | int(*)(void *, mbedtls_x509_crt *, int, uint32_t *) | f_vrfy,
|  | void * | p_vrfy,
|  | mbedtls_x509_crt_restart_ctx * | rs_ctx
| ) |  |

Restartable version of `mbedtls_crt_verify_with_profile()`

Note
  Performs the same job as `mbedtls_crt_verify_with_profile()` but can return early and restart according to the limit set with `mbedtls_ecp_set_max_ops()` to reduce blocking.

Parameters

  crt | The certificate chain to be verified.
  trust_ca | The list of trusted CAs.
  ca_crl | The list of CRLs for trusted CAs.
  profile | The security profile to use for the verification.
  cn | The expected Common Name. This may be `NULL` if the CN need not be verified.
  flags | The address at which to store the result of the verification. If the verification couldn't be completed, the flag value is set to (uint32_t) -1.
  f_vrfy | The verification callback to use. See the documentation of mbedtls_x509_crt_verify() for more information.
  p_vrfy | The context to be passed to `f_vrfy`.
  rs_ctx | The restart context to use. This may be set to `NULL` to disable restartable ECC.

Returns
  See `mbedtls_crt_verify_with_profile()`, or
  MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of operations was reached: see `mbedtls_ecp_set_max_ops()`.

## ◆ mbedtls_x509_crt_verify_with_profile()

int mbedtls_x509_crt_verify_with_profile | ( | mbedtls_x509_crt * | crt,
|  | mbedtls_x509_crt * | trust_ca,
|  | mbedtls_x509_crl * | ca_crl,
|  | const mbedtls_x509_crt_profile * | profile,
|  | const char * | cn,
|  | uint32_t * | flags,
|  | int(*)(void *, mbedtls_x509_crt *, int, uint32_t *) | f_vrfy,
|  | void * | p_vrfy
| ) |  |

Verify a chain of certificates with respect to a configurable security profile.

Note
  Same as `mbedtls_x509_crt_verify()`, but with explicit security profile.
  The restrictions on keys (RSA minimum size, allowed curves for ECDSA) apply to all certificates: trusted root, intermediate CAs if any, and end entity certificate.

Parameters

  crt | The certificate chain to be verified.
  trust_ca | The list of trusted CAs.
  ca_crl | The list of CRLs for trusted CAs.
  profile | The security profile to use for the verification.
  cn | The expected Common Name. This may be `NULL` if the CN need not be verified.
  flags | The address at which to store the result of the verification. If the verification couldn't be completed, the flag value is set to (uint32_t) -1.
  f_vrfy | The verification callback to use. See the documentation of mbedtls_x509_crt_verify() for more information.
  p_vrfy | The context to be passed to `f_vrfy`.

Returns
  `0` if the chain is valid with respect to the passed CN, CAs, CRLs and security profile.
  MBEDTLS_ERR_X509_CERT_VERIFY_FAILED in case the certificate chain verification failed. In this case, `*flags` will have one or more `MBEDTLS_X509_BADCERT_XXX` or `MBEDTLS_X509_BADCRL_XXX` flags set.
  Another negative error code in case of a fatal error encountered during the verification process.

## ◆ mbedtls_x509_csr_free()

void mbedtls_x509_csr_free | ( | mbedtls_x509_csr * | csr | ) |

Unallocate all CSR data.

Parameters

  csr | CSR to free

## ◆ mbedtls_x509_csr_info()

int mbedtls_x509_csr_info | ( | char * | buf,
|  | size_t | size,
|  | const char * | prefix,
|  | const mbedtls_x509_csr * | csr
| ) |  |

Returns an informational string about the CSR.

Parameters

  buf | Buffer to write to
  size | Maximum size of buffer
  prefix | A line prefix
  csr | The X509 CSR to represent

Returns
  The length of the string written (not including the terminated nul byte), or a negative error code.

## ◆ mbedtls_x509_csr_init()

void mbedtls_x509_csr_init | ( | mbedtls_x509_csr * | csr | ) |

Initialize a CSR.

Parameters

  csr | CSR to initialize

## ◆ mbedtls_x509_csr_parse()

int mbedtls_x509_csr_parse | ( | mbedtls_x509_csr * | csr,
|  | const unsigned char * | buf,
|  | size_t | buflen
| ) |  |

Load a Certificate Signing Request (CSR), DER or PEM format.

Note
  See notes for `mbedtls_x509_csr_parse_der()`

Parameters

  csr | CSR context to fill
  buf | buffer holding the CRL data
  buflen | size of the buffer (including the terminating null byte for PEM data)

Returns
  0 if successful, or a specific X509 or PEM error code

## ◆ mbedtls_x509_csr_parse_der()

int mbedtls_x509_csr_parse_der | ( | mbedtls_x509_csr * | csr,
|  | const unsigned char * | buf,
|  | size_t | buflen
| ) |  |

Load a Certificate Signing Request (CSR) in DER format.

Note
  CSR attributes (if any) are currently silently ignored.

Parameters

  csr | CSR context to fill
  buf | buffer holding the CRL data
  buflen | size of the buffer

Returns
  0 if successful, or a specific X509 error code

## ◆ mbedtls_x509_csr_parse_file()

int mbedtls_x509_csr_parse_file | ( | mbedtls_x509_csr * | csr,
|  | const char * | path
| ) |  |

Load a Certificate Signing Request (CSR)

Note
  See notes for `mbedtls_x509_csr_parse()`

Parameters

  csr | CSR context to fill
  path | filename to read the CSR from

Returns
  0 if successful, or a specific X509 or PEM error code

## ◆ mbedtls_x509_dn_gets()

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.

Parameters

  buf | Buffer to write to
  size | Maximum size of buffer
  dn | The X509 name to represent

Returns
  The length of the string written (not including the terminated nul byte), or a negative error code.

## ◆ mbedtls_x509_get_alg()

int mbedtls_x509_get_alg | ( | unsigned char ** | p,
|  | const unsigned char * | end,
|  | mbedtls_x509_buf * | alg,
|  | mbedtls_x509_buf * | params
| ) |  |

## ◆ mbedtls_x509_get_alg_null()

int mbedtls_x509_get_alg_null | ( | unsigned char ** | p,
|  | const unsigned char * | end,
|  | mbedtls_x509_buf * | alg
| ) |  |

## ◆ mbedtls_x509_get_ext()

int mbedtls_x509_get_ext | ( | unsigned char ** | p,
|  | const unsigned char * | end,
|  | mbedtls_x509_buf * | ext,
|  | int | tag
| ) |  |

## ◆ mbedtls_x509_get_name()

int mbedtls_x509_get_name | ( | unsigned char ** | p,
|  | const unsigned char * | end,
|  | mbedtls_x509_name * | cur
| ) |  |

## ◆ mbedtls_x509_get_rsassa_pss_params()

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_x509_get_serial()

int mbedtls_x509_get_serial | ( | unsigned char ** | p,
|  | const unsigned char * | end,
|  | mbedtls_x509_buf * | serial
| ) |  |

## ◆ mbedtls_x509_get_sig()

int mbedtls_x509_get_sig | ( | unsigned char ** | p,
|  | const unsigned char * | end,
|  | mbedtls_x509_buf * | sig
| ) |  |

## ◆ mbedtls_x509_get_sig_alg()

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
| ) |  |

## ◆ mbedtls_x509_get_time()

int mbedtls_x509_get_time | ( | unsigned char ** | p,
|  | const unsigned char * | end,
|  | mbedtls_x509_time * | t
| ) |  |

## ◆ mbedtls_x509_key_size_helper()

int mbedtls_x509_key_size_helper | ( | char * | buf,
|  | size_t | buf_size,
|  | const char * | name
| ) |  |

## ◆ mbedtls_x509_parse_subject_alt_name()

int mbedtls_x509_parse_subject_alt_name | ( | const mbedtls_x509_buf * | san_buf,
|  | mbedtls_x509_subject_alternative_name * | san
| ) |  |

This function parses an item in the SubjectAlternativeNames extension.

Parameters

  san_buf | The buffer holding the raw data item of the subject alternative name.
  san | The target structure to populate with the parsed presentation of the subject alternative name encoded in `san_raw`.

Note
  Only "dnsName" and "otherName" of type hardware_module_name as defined in RFC 4180 is supported.
  This function should be called on a single raw data of subject alternative name. For example, after successful certificate parsing, one must iterate on every item in the `crt->subject_alt_names` sequence, and pass it to this function.

Warning
  The target structure contains pointers to the raw data of the parsed certificate, and its lifetime is restricted by the lifetime of the certificate.

Returns
  `0` on success
  MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE for an unsupported SAN type.
  Another negative value for any other failure.

## ◆ mbedtls_x509_self_test()

int mbedtls_x509_self_test | ( | int | verbose | ) |

Checkup routine.

Returns
  0 if successful, or 1 if the test failed

## ◆ mbedtls_x509_serial_gets()

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.

Parameters

  buf | Buffer to write to
  size | Maximum size of buffer
  serial | The X509 serial to represent

Returns
  The length of the string written (not including the terminated nul byte), or a negative error code.

## ◆ mbedtls_x509_set_extension()

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
| ) |  |

## ◆ mbedtls_x509_sig_alg_gets()

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
| ) |  |

## ◆ mbedtls_x509_string_to_names()

int mbedtls_x509_string_to_names | ( | mbedtls_asn1_named_data ** | head,
|  | const char * | name
| ) |  |

## ◆ mbedtls_x509_time_is_future()

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.

Note
  Intended usage is "if( is_future( valid_from ) ) ERROR". Hence the return value of 1 if on internal errors.

Parameters

  from | mbedtls_x509_time to check

Returns
  1 if the given time is in the future or an error occurred, 0 otherwise.

## ◆ mbedtls_x509_time_is_past()

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.

Note
  Intended usage is "if( is_past( valid_to ) ) ERROR". Hence the return value of 1 if on internal errors.

Parameters

  to | mbedtls_x509_time to check

Returns
  1 if the given time is in the past or an error occurred, 0 otherwise.

## ◆ mbedtls_x509_write_extensions()

int mbedtls_x509_write_extensions | ( | unsigned char ** | p,
|  | unsigned char * | start,
|  | mbedtls_asn1_named_data * | first
| ) |  |

## ◆ mbedtls_x509_write_names()

int mbedtls_x509_write_names | ( | unsigned char ** | p,
|  | unsigned char * | start,
|  | mbedtls_asn1_named_data * | first
| ) |  |

## ◆ mbedtls_x509_write_sig()

int mbedtls_x509_write_sig | ( | unsigned char ** | p,
|  | unsigned char * | start,
|  | const char * | oid,
|  | size_t | oid_len,
|  | unsigned char * | sig,
|  | size_t | size
| ) |  |

## ◆ mbedtls_x509write_crt_der()

int mbedtls_x509write_crt_der | ( | mbedtls_x509write_cert * | ctx,
|  | unsigned char * | buf,
|  | size_t | size,
|  | int(*)(void *, unsigned char *, size_t) | f_rng,
|  | void * | p_rng
| ) |  |

Write a built up certificate to a X509 DER structure Note: data is written at the end of the buffer! Use the return value to determine where you should start using the buffer.

Parameters

  ctx | certificate to write away
  buf | buffer to write to
  size | size of the buffer
  f_rng | RNG function (for signature, see note)
  p_rng | RNG parameter

Returns
  length of data written if successful, or a specific error code

Note
  f_rng may be NULL if RSA is used for signature and the signature is made offline (otherwise f_rng is desirable for countermeasures against timing attacks). ECDSA signatures always require a non-NULL f_rng.

## ◆ mbedtls_x509write_crt_free()

void mbedtls_x509write_crt_free | ( | mbedtls_x509write_cert * | ctx | ) |

Free the contents of a CRT write context.

Parameters

  ctx | CRT context to free

## ◆ mbedtls_x509write_crt_init()

void mbedtls_x509write_crt_init | ( | mbedtls_x509write_cert * | ctx | ) |

Initialize a CRT writing context.

Parameters

  ctx | CRT context to initialize

## ◆ mbedtls_x509write_crt_pem()

int mbedtls_x509write_crt_pem | ( | mbedtls_x509write_cert * | ctx,
|  | unsigned char * | buf,
|  | size_t | size,
|  | int(*)(void *, unsigned char *, size_t) | f_rng,
|  | void * | p_rng
| ) |  |

Write a built up certificate to a X509 PEM string.

Parameters

  ctx | certificate to write away
  buf | buffer to write to
  size | size of the buffer
  f_rng | RNG function (for signature, see note)
  p_rng | RNG parameter

Returns
  0 if successful, or a specific error code

Note
  f_rng may be NULL if RSA is used for signature and the signature is made offline (otherwise f_rng is desirable for countermeasures against timing attacks). ECDSA signatures always require a non-NULL f_rng.

## ◆ mbedtls_x509write_crt_set_authority_key_identifier()

int mbedtls_x509write_crt_set_authority_key_identifier | ( | mbedtls_x509write_cert * | ctx | ) |

Set the authorityKeyIdentifier extension for a CRT Requires that mbedtls_x509write_crt_set_issuer_key() has been called before.

Parameters

  ctx | CRT context to use

Returns
  0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED

## ◆ mbedtls_x509write_crt_set_basic_constraints()

int mbedtls_x509write_crt_set_basic_constraints | ( | mbedtls_x509write_cert * | ctx,
|  | int | is_ca,
|  | int | max_pathlen
| ) |  |

Set the basicConstraints extension for a CRT.

Parameters

  ctx | CRT context to use
  is_ca | is this a CA certificate
  max_pathlen | maximum length of certificate chains below this certificate (only for CA certificates, -1 is inlimited)

Returns
  0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED

## ◆ mbedtls_x509write_crt_set_extension()

int mbedtls_x509write_crt_set_extension | ( | mbedtls_x509write_cert * | ctx,
|  | const char * | oid,
|  | size_t | oid_len,
|  | int | critical,
|  | const unsigned char * | val,
|  | size_t | val_len
| ) |  |

Generic function to add to or replace an extension in the CRT.

Parameters

  ctx | CRT context to use
  oid | OID of the extension
  oid_len | length of the OID
  critical | if the extension is critical (per the RFC's definition)
  val | value of the extension OCTET STRING
  val_len | length of the value data

Returns
  0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED

## ◆ mbedtls_x509write_crt_set_issuer_key()

void mbedtls_x509write_crt_set_issuer_key | ( | mbedtls_x509write_cert * | ctx,
|  | mbedtls_pk_context * | key
| ) |  |

Set the issuer key used for signing the certificate.

Parameters

  ctx | CRT context to use
  key | private key to sign with

## ◆ mbedtls_x509write_crt_set_issuer_name()

int mbedtls_x509write_crt_set_issuer_name | ( | mbedtls_x509write_cert * | ctx,
|  | const char * | issuer_name
| ) |  |

Set the issuer name for a Certificate Issuer names should contain a comma-separated list of OID types and values: e.g. "C=UK,O=ARM,CN=mbed TLS CA".

Parameters

  ctx | CRT context to use
  issuer_name | issuer name to set

Returns
  0 if issuer name was parsed successfully, or a specific error code

## ◆ mbedtls_x509write_crt_set_key_usage()

int mbedtls_x509write_crt_set_key_usage | ( | mbedtls_x509write_cert * | ctx,
|  | unsigned int | key_usage
| ) |  |

Set the Key Usage Extension flags (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN)

Parameters

  ctx | CRT context to use
  key_usage | key usage flags to set

Returns
  0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED

## ◆ mbedtls_x509write_crt_set_md_alg()

void mbedtls_x509write_crt_set_md_alg | ( | mbedtls_x509write_cert * | ctx,
|  | mbedtls_md_type_t | md_alg
| ) |  |

Set the MD algorithm to use for the signature (e.g. MBEDTLS_MD_SHA1)

Parameters

  ctx | CRT context to use
  md_alg | MD algorithm to use

## ◆ mbedtls_x509write_crt_set_ns_cert_type()

int mbedtls_x509write_crt_set_ns_cert_type | ( | mbedtls_x509write_cert * | ctx,
|  | unsigned char | ns_cert_type
| ) |  |

Set the Netscape Cert Type flags (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL)

Parameters

  ctx | CRT context to use
  ns_cert_type | Netscape Cert Type flags to set

Returns
  0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED

## ◆ mbedtls_x509write_crt_set_serial()

int mbedtls_x509write_crt_set_serial | ( | mbedtls_x509write_cert * | ctx,
|  | const mbedtls_mpi * | serial
| ) |  |

Set the serial number for a Certificate.

Parameters

  ctx | CRT context to use
  serial | serial number to set

Returns
  0 if successful

## ◆ mbedtls_x509write_crt_set_subject_key()

void mbedtls_x509write_crt_set_subject_key | ( | mbedtls_x509write_cert * | ctx,
|  | mbedtls_pk_context * | key
| ) |  |

Set the subject public key for the certificate.

Parameters

  ctx | CRT context to use
  key | public key to include

## ◆ mbedtls_x509write_crt_set_subject_key_identifier()

int mbedtls_x509write_crt_set_subject_key_identifier | ( | mbedtls_x509write_cert * | ctx | ) |

Set the subjectKeyIdentifier extension for a CRT Requires that mbedtls_x509write_crt_set_subject_key() has been called before.

Parameters

  ctx | CRT context to use

Returns
  0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED

## ◆ mbedtls_x509write_crt_set_subject_name()

int mbedtls_x509write_crt_set_subject_name | ( | mbedtls_x509write_cert * | ctx,
|  | const char * | subject_name
| ) |  |

Set the subject name for a Certificate Subject names should contain a comma-separated list of OID types and values: e.g. "C=UK,O=ARM,CN=mbed TLS Server 1".

Parameters

  ctx | CRT context to use
  subject_name | subject name to set

Returns
  0 if subject name was parsed successfully, or a specific error code

## ◆ mbedtls_x509write_crt_set_validity()

int mbedtls_x509write_crt_set_validity | ( | mbedtls_x509write_cert * | ctx,
|  | const char * | not_before,
|  | const char * | not_after
| ) |  |

Set the validity period for a Certificate Timestamps should be in string format for UTC timezone i.e. "YYYYMMDDhhmmss" e.g. "20131231235959" for December 31st 2013 at 23:59:59.

Parameters

  ctx | CRT context to use
  not_before | not_before timestamp
  not_after | not_after timestamp

Returns
  0 if timestamp was parsed successfully, or a specific error code

## ◆ mbedtls_x509write_crt_set_version()

void mbedtls_x509write_crt_set_version | ( | mbedtls_x509write_cert * | ctx,
|  | int | version
| ) |  |

Set the verion for a Certificate Default: MBEDTLS_X509_CRT_VERSION_3.

Parameters

  ctx | CRT context to use
  version | version to set (MBEDTLS_X509_CRT_VERSION_1, MBEDTLS_X509_CRT_VERSION_2 or MBEDTLS_X509_CRT_VERSION_3)

## ◆ mbedtls_x509write_csr_der()

int mbedtls_x509write_csr_der | ( | mbedtls_x509write_csr * | ctx,
|  | unsigned char * | buf,
|  | size_t | size,
|  | int(*)(void *, unsigned char *, size_t) | f_rng,
|  | void * | p_rng
| ) |  |

Write a CSR (Certificate Signing Request) to a DER structure Note: data is written at the end of the buffer! Use the return value to determine where you should start using the buffer.

Parameters

  ctx | CSR to write away
  buf | buffer to write to
  size | size of the buffer
  f_rng | RNG function (for signature, see note)
  p_rng | RNG parameter

Returns
  length of data written if successful, or a specific error code

Note
  f_rng may be NULL if RSA is used for signature and the signature is made offline (otherwise f_rng is desirable for countermeasures against timing attacks). ECDSA signatures always require a non-NULL f_rng.

## ◆ mbedtls_x509write_csr_free()

void mbedtls_x509write_csr_free | ( | mbedtls_x509write_csr * | ctx | ) |

Free the contents of a CSR context.

Parameters

  ctx | CSR context to free

## ◆ mbedtls_x509write_csr_init()

void mbedtls_x509write_csr_init | ( | mbedtls_x509write_csr * | ctx | ) |

Initialize a CSR context.

Parameters

  ctx | CSR context to initialize

## ◆ mbedtls_x509write_csr_pem()

int mbedtls_x509write_csr_pem | ( | mbedtls_x509write_csr * | ctx,
|  | unsigned char * | buf,
|  | size_t | size,
|  | int(*)(void *, unsigned char *, size_t) | f_rng,
|  | void * | p_rng
| ) |  |

Write a CSR (Certificate Signing Request) to a PEM string.

Parameters

  ctx | CSR to write away
  buf | buffer to write to
  size | size of the buffer
  f_rng | RNG function (for signature, see note)
  p_rng | RNG parameter

Returns
  0 if successful, or a specific error code

Note
  f_rng may be NULL if RSA is used for signature and the signature is made offline (otherwise f_rng is desirable for countermeasures against timing attacks). ECDSA signatures always require a non-NULL f_rng.

## ◆ mbedtls_x509write_csr_set_extension()

int mbedtls_x509write_csr_set_extension | ( | mbedtls_x509write_csr * | ctx,
|  | const char * | oid,
|  | size_t | oid_len,
|  | const unsigned char * | val,
|  | size_t | val_len
| ) |  |

Generic function to add to or replace an extension in the CSR.

Parameters

  ctx | CSR context to use
  oid | OID of the extension
  oid_len | length of the OID
  val | value of the extension OCTET STRING
  val_len | length of the value data

Returns
  0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED

## ◆ mbedtls_x509write_csr_set_key()

void mbedtls_x509write_csr_set_key | ( | mbedtls_x509write_csr * | ctx,
|  | mbedtls_pk_context * | key
| ) |  |

Set the key for a CSR (public key will be included, private key used to sign the CSR when writing it)

Parameters

  ctx | CSR context to use
  key | Asymetric key to include

## ◆ mbedtls_x509write_csr_set_key_usage()

int mbedtls_x509write_csr_set_key_usage | ( | mbedtls_x509write_csr * | ctx,
|  | unsigned char | key_usage
| ) |  |

Set the Key Usage Extension flags (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN)

Parameters

  ctx | CSR context to use
  key_usage | key usage flags to set

Returns
  0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED

Note
  The `decipherOnly` flag from the Key Usage extension is represented by bit 8 (i.e. `0x8000`), which cannot typically be represented in an unsigned char. Therefore, the flag `decipherOnly` (i.e. MBEDTLS_X509_KU_DECIPHER_ONLY) cannot be set using this function.

## ◆ mbedtls_x509write_csr_set_md_alg()

void mbedtls_x509write_csr_set_md_alg | ( | mbedtls_x509write_csr * | ctx,
|  | mbedtls_md_type_t | md_alg
| ) |  |

Set the MD algorithm to use for the signature (e.g. MBEDTLS_MD_SHA1)

Parameters

  ctx | CSR context to use
  md_alg | MD algorithm to use

## ◆ mbedtls_x509write_csr_set_ns_cert_type()

int mbedtls_x509write_csr_set_ns_cert_type | ( | mbedtls_x509write_csr * | ctx,
|  | unsigned char | ns_cert_type
| ) |  |

Set the Netscape Cert Type flags (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL)

Parameters

  ctx | CSR context to use
  ns_cert_type | Netscape Cert Type flags to set

Returns
  0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED

## ◆ mbedtls_x509write_csr_set_subject_name()

int mbedtls_x509write_csr_set_subject_name | ( | mbedtls_x509write_csr * | ctx,
|  | const char * | subject_name
| ) |  |

Set the subject name for a CSR Subject names should contain a comma-separated list of OID types and values: e.g. "C=UK,O=ARM,CN=mbed TLS Server 1".

Parameters

  ctx | CSR context to use
  subject_name | subject name to set

Returns
  0 if subject name was parsed successfully, or a specific error code

## Variable Documentation

## ◆ allowed_curves

uint32_t mbedtls_x509_crt_profile::allowed_curves

Elliptic curves for ECDSA

Definition at line 165 of file x509_crt.h.

## ◆ allowed_mds

uint32_t mbedtls_x509_crt_profile::allowed_mds

MDs for signatures

Definition at line 163 of file x509_crt.h.

## ◆ allowed_pks

uint32_t mbedtls_x509_crt_profile::allowed_pks

PK algs for signatures

Definition at line 164 of file x509_crt.h.

## ◆ ca_istrue

int mbedtls_x509_crt::ca_istrue

Optional Basic Constraint extension value: 1 if this certificate belongs to a CA, 0 otherwise.

Definition at line 85 of file x509_crt.h.

## ◆ certificate_policies

mbedtls_x509_sequence mbedtls_x509_crt::certificate_policies

Optional list of certificate policies (Only anyPolicy is printed and enforced, however the rest of the policies are still listed).

Definition at line 82 of file x509_crt.h.

## ◆ cri

mbedtls_x509_buf mbedtls_x509_csr::cri

The raw CertificateRequestInfo body (DER).

Definition at line 54 of file x509_csr.h.

## ◆ crl_ext

mbedtls_x509_buf mbedtls_x509_crl::crl_ext

Definition at line 87 of file x509_crl.h.

## ◆ crt

mbedtls_x509_crt* mbedtls_x509_crt_verify_chain_item::crt

Definition at line 203 of file x509_crt.h.

## ◆ day

int mbedtls_x509_time::day

Date.

Definition at line 234 of file x509.h.

## ◆ entry

mbedtls_x509_crl_entry mbedtls_x509_crl::entry

The CRL entries containing the certificate revocation times for this CA.

Definition at line 85 of file x509_crl.h.

## ◆ entry_ext

mbedtls_x509_buf mbedtls_x509_crl_entry::entry_ext

Definition at line 60 of file x509_crl.h.

## ◆ ext_key_usage

mbedtls_x509_sequence mbedtls_x509_crt::ext_key_usage

Optional list of extended key usage OIDs.

Definition at line 90 of file x509_crt.h.

## ◆ ext_types

int mbedtls_x509_crt::ext_types

Bit string containing detected and parsed extensions

Definition at line 84 of file x509_crt.h.

## ◆ extensions [1/2]

mbedtls_asn1_named_data* mbedtls_x509write_cert::extensions

Definition at line 195 of file x509_crt.h.

## ◆ extensions [2/2]

mbedtls_asn1_named_data* mbedtls_x509write_csr::extensions

Definition at line 79 of file x509_csr.h.

## ◆ flags

uint32_t mbedtls_x509_crt_verify_chain_item::flags

Definition at line 204 of file x509_crt.h.

## ◆ hardware_module_name [1/2]

struct { ... } ::hardware_module_name

From RFC 4108 section 5: HardwareModuleName ::= SEQUENCE { hwType OBJECT IDENTIFIER, hwSerialNum OCTET STRING }

## ◆ hardware_module_name [2/2]

struct { ... } mbedtls_x509_san_other_name::hardware_module_name

From RFC 4108 section 5: HardwareModuleName ::= SEQUENCE { hwType OBJECT IDENTIFIER, hwSerialNum OCTET STRING }

## ◆ hour

int mbedtls_x509_time::hour

Definition at line 235 of file x509.h.

## ◆ issuer [1/3]

mbedtls_x509_name mbedtls_x509_crl::issuer

The parsed issuer data (named information object).

Definition at line 80 of file x509_crl.h.

## ◆ issuer [2/3]

mbedtls_x509_name mbedtls_x509_crt::issuer

The parsed issuer data (named information object).

Definition at line 68 of file x509_crt.h.

## ◆ issuer [3/3]

mbedtls_asn1_named_data* mbedtls_x509write_cert::issuer

Definition at line 191 of file x509_crt.h.

## ◆ issuer_id

mbedtls_x509_buf mbedtls_x509_crt::issuer_id

Optional X.509 v2/v3 issuer unique identifier.

Definition at line 77 of file x509_crt.h.

## ◆ issuer_key

mbedtls_pk_context* mbedtls_x509write_cert::issuer_key

Definition at line 189 of file x509_crt.h.

## ◆ issuer_raw [1/2]

mbedtls_x509_buf mbedtls_x509_crl::issuer_raw

The raw issuer data (DER).

Definition at line 78 of file x509_crl.h.

## ◆ issuer_raw [2/2]

mbedtls_x509_buf mbedtls_x509_crt::issuer_raw

The raw issuer data (DER). Used for quick comparison.

Definition at line 65 of file x509_crt.h.

## ◆ items

mbedtls_x509_crt_verify_chain_item mbedtls_x509_crt_verify_chain::items[MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE]

Definition at line 217 of file x509_crt.h.

## ◆ key

mbedtls_pk_context* mbedtls_x509write_csr::key

Definition at line 76 of file x509_csr.h.

## ◆ key_usage

unsigned int mbedtls_x509_crt::key_usage

Optional key usage extension value: See the values in x509.h

Definition at line 88 of file x509_crt.h.

## ◆ len

unsigned mbedtls_x509_crt_verify_chain::len

Definition at line 218 of file x509_crt.h.

## ◆ max_pathlen

int mbedtls_x509_crt::max_pathlen

Optional Basic Constraint extension value: The maximum path length to the root certificate. Path length is 1 higher than RFC 5280 'meaning', so 1+

Definition at line 86 of file x509_crt.h.

## ◆ mbedtls_x509_crt_profile_default

const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_default

Default security profile. Should provide a good balance between security and compatibility with current deployments.

## ◆ mbedtls_x509_crt_profile_next

const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_next

Expected next default profile. Recommended for new deployments. Currently targets a 128-bit security level, except for RSA-2048.

## ◆ mbedtls_x509_crt_profile_suiteb

const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_suiteb

NSA Suite B profile.

## ◆ md_alg [1/2]

mbedtls_md_type_t mbedtls_x509write_cert::md_alg

Definition at line 192 of file x509_crt.h.

## ◆ md_alg [2/2]

mbedtls_md_type_t mbedtls_x509write_csr::md_alg

Definition at line 78 of file x509_csr.h.

## ◆ min

int mbedtls_x509_time::min

Definition at line 235 of file x509.h.

## ◆ mon

int mbedtls_x509_time::mon

Definition at line 234 of file x509.h.

## ◆ next [1/3]

struct mbedtls_x509_crl_entry* mbedtls_x509_crl_entry::next

Definition at line 62 of file x509_crl.h.

## ◆ next [2/3]

struct mbedtls_x509_crl* mbedtls_x509_crl::next

Definition at line 95 of file x509_crl.h.

## ◆ next [3/3]

struct mbedtls_x509_crt* mbedtls_x509_crt::next

Next certificate in the CA-chain.

Definition at line 99 of file x509_crt.h.

## ◆ next_update

mbedtls_x509_time mbedtls_x509_crl::next_update

Definition at line 83 of file x509_crl.h.

## ◆ not_after

char mbedtls_x509write_cert::not_after[MBEDTLS_X509_RFC5280_UTC_TIME_LEN+1]

Definition at line 194 of file x509_crt.h.

## ◆ not_before

char mbedtls_x509write_cert::not_before[MBEDTLS_X509_RFC5280_UTC_TIME_LEN+1]

Definition at line 193 of file x509_crt.h.

## ◆ ns_cert_type

unsigned char mbedtls_x509_crt::ns_cert_type

Optional Netscape certificate type extension value: See the values in x509.h

Definition at line 92 of file x509_crt.h.

## ◆ oid [1/2]

mbedtls_x509_buf mbedtls_x509_san_other_name::oid

The object identifier.

Definition at line 127 of file x509_crt.h.

## ◆ oid [2/2]

mbedtls_x509_buf { ... } ::oid

The object identifier.

Definition at line 127 of file x509_crt.h.

## ◆ other_name [1/2]

mbedtls_x509_san_other_name mbedtls_x509_subject_alternative_name::other_name

The otherName supported type.

Definition at line 143 of file x509_crt.h.

## ◆ other_name [2/2]

mbedtls_x509_san_other_name { ... } ::other_name

The otherName supported type.

Definition at line 143 of file x509_crt.h.

## ◆ own_buffer

int mbedtls_x509_crt::own_buffer

Indicates if `raw` is owned by the structure or not.

Definition at line 56 of file x509_crt.h.

## ◆ pk [1/2]

mbedtls_pk_context mbedtls_x509_crt::pk

Container for the public key context.

Definition at line 75 of file x509_crt.h.

## ◆ pk [2/2]

mbedtls_pk_context mbedtls_x509_csr::pk

Container for the public key context.

Definition at line 61 of file x509_csr.h.

## ◆ pk_raw

mbedtls_x509_buf mbedtls_x509_crt::pk_raw

Definition at line 74 of file x509_crt.h.

## ◆ raw [1/4]

mbedtls_x509_buf mbedtls_x509_crl_entry::raw

Definition at line 54 of file x509_crl.h.

## ◆ raw [2/4]

mbedtls_x509_buf mbedtls_x509_crl::raw

The raw certificate data (DER).

Definition at line 72 of file x509_crl.h.

## ◆ raw [3/4]

mbedtls_x509_buf mbedtls_x509_crt::raw

The raw certificate data (DER).

Definition at line 58 of file x509_crt.h.

## ◆ raw [4/4]

mbedtls_x509_buf mbedtls_x509_csr::raw

The raw CSR data (DER).

Definition at line 53 of file x509_csr.h.

## ◆ revocation_date

mbedtls_x509_time mbedtls_x509_crl_entry::revocation_date

Definition at line 58 of file x509_crl.h.

## ◆ rsa_min_bitlen

uint32_t mbedtls_x509_crt_profile::rsa_min_bitlen

Minimum size for RSA keys

Definition at line 166 of file x509_crt.h.

## ◆ san

union { ... } mbedtls_x509_subject_alternative_name::san

A union of the supported SAN types

## ◆ sec

int mbedtls_x509_time::sec

Time.

Definition at line 235 of file x509.h.

## ◆ serial [1/3]

mbedtls_x509_buf mbedtls_x509_crl_entry::serial

Definition at line 56 of file x509_crl.h.

## ◆ serial [2/3]

mbedtls_x509_buf mbedtls_x509_crt::serial

Unique id for certificate issued by a specific CA.

Definition at line 62 of file x509_crt.h.

## ◆ serial [3/3]

mbedtls_mpi mbedtls_x509write_cert::serial

Definition at line 187 of file x509_crt.h.

## ◆ sig [1/3]

mbedtls_x509_buf mbedtls_x509_crl::sig

Definition at line 90 of file x509_crl.h.

## ◆ sig [2/3]

mbedtls_x509_buf mbedtls_x509_crt::sig

Signature: hash of the tbs part signed with the private key.

Definition at line 94 of file x509_crt.h.

## ◆ sig [3/3]

mbedtls_x509_buf mbedtls_x509_csr::sig

Definition at line 64 of file x509_csr.h.

## ◆ sig_md [1/3]

mbedtls_md_type_t mbedtls_x509_crl::sig_md

Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256

Definition at line 91 of file x509_crl.h.

## ◆ sig_md [2/3]

mbedtls_md_type_t mbedtls_x509_crt::sig_md

Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256

Definition at line 95 of file x509_crt.h.

## ◆ sig_md [3/3]

mbedtls_md_type_t mbedtls_x509_csr::sig_md

Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256

Definition at line 65 of file x509_csr.h.

## ◆ sig_oid [1/3]

mbedtls_x509_buf mbedtls_x509_crl::sig_oid

CRL signature type identifier

Definition at line 76 of file x509_crl.h.

## ◆ sig_oid [2/3]

mbedtls_x509_buf mbedtls_x509_crt::sig_oid

Signature algorithm, e.g. sha1RSA

Definition at line 63 of file x509_crt.h.

## ◆ sig_oid [3/3]

mbedtls_x509_buf mbedtls_x509_csr::sig_oid

Definition at line 63 of file x509_csr.h.

## ◆ sig_oid2

mbedtls_x509_buf mbedtls_x509_crl::sig_oid2

Definition at line 89 of file x509_crl.h.

## ◆ sig_opts [1/3]

void* mbedtls_x509_crl::sig_opts

Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS

Definition at line 93 of file x509_crl.h.

## ◆ sig_opts [2/3]

void* mbedtls_x509_crt::sig_opts

Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS

Definition at line 97 of file x509_crt.h.

## ◆ sig_opts [3/3]

void* mbedtls_x509_csr::sig_opts

Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS

Definition at line 67 of file x509_csr.h.

## ◆ sig_pk [1/3]

mbedtls_pk_type_t mbedtls_x509_crl::sig_pk

Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA

Definition at line 92 of file x509_crl.h.

## ◆ sig_pk [2/3]

mbedtls_pk_type_t mbedtls_x509_crt::sig_pk

Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA

Definition at line 96 of file x509_crt.h.

## ◆ sig_pk [3/3]

mbedtls_pk_type_t mbedtls_x509_csr::sig_pk

Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA

Definition at line 66 of file x509_csr.h.

## ◆ subject [1/4]

mbedtls_x509_name mbedtls_x509_crt::subject

The parsed subject data (named information object).

Definition at line 69 of file x509_crt.h.

## ◆ subject [2/4]

mbedtls_asn1_named_data* mbedtls_x509write_cert::subject

Definition at line 190 of file x509_crt.h.

## ◆ subject [3/4]

mbedtls_x509_name mbedtls_x509_csr::subject

The parsed subject data (named information object).

Definition at line 59 of file x509_csr.h.

## ◆ subject [4/4]

mbedtls_asn1_named_data* mbedtls_x509write_csr::subject

Definition at line 77 of file x509_csr.h.

## ◆ subject_alt_names

mbedtls_x509_sequence mbedtls_x509_crt::subject_alt_names

Optional list of raw entries of Subject Alternative Names extension (currently only dNSName and OtherName are listed).

Definition at line 80 of file x509_crt.h.

## ◆ subject_id

mbedtls_x509_buf mbedtls_x509_crt::subject_id

Optional X.509 v2/v3 subject unique identifier.

Definition at line 78 of file x509_crt.h.

## ◆ subject_key

mbedtls_pk_context* mbedtls_x509write_cert::subject_key

Definition at line 188 of file x509_crt.h.

## ◆ subject_raw [1/2]

mbedtls_x509_buf mbedtls_x509_crt::subject_raw

The raw subject data (DER). Used for quick comparison.

Definition at line 66 of file x509_crt.h.

## ◆ subject_raw [2/2]

mbedtls_x509_buf mbedtls_x509_csr::subject_raw

The raw subject data (DER).

Definition at line 58 of file x509_csr.h.

## ◆ tbs [1/2]

mbedtls_x509_buf mbedtls_x509_crl::tbs

The raw certificate body (DER). The part that is To Be Signed.

Definition at line 73 of file x509_crl.h.

## ◆ tbs [2/2]

mbedtls_x509_buf mbedtls_x509_crt::tbs

The raw certificate body (DER). The part that is To Be Signed.

Definition at line 59 of file x509_crt.h.

## ◆ this_update

mbedtls_x509_time mbedtls_x509_crl::this_update

Definition at line 82 of file x509_crl.h.

## ◆ type

int mbedtls_x509_subject_alternative_name::type

The SAN type, value of MBEDTLS_X509_SAN_XXX.

Definition at line 141 of file x509_crt.h.

## ◆ type_id

mbedtls_x509_buf mbedtls_x509_san_other_name::type_id

The type_id is an OID as deifned in RFC 5280. To check the value of the type id, you should use `MBEDTLS_OID_CMP` with a known OID mbedtls_x509_buf. The type id.

Definition at line 116 of file x509_crt.h.

## ◆ unstructured_name [1/2]

mbedtls_x509_buf mbedtls_x509_subject_alternative_name::unstructured_name

The buffer for the un constructed types. Only dnsName currently supported

Definition at line 144 of file x509_crt.h.

## ◆ unstructured_name [2/2]

mbedtls_x509_buf { ... } ::unstructured_name

The buffer for the un constructed types. Only dnsName currently supported

Definition at line 144 of file x509_crt.h.

## ◆ v3_ext

mbedtls_x509_buf mbedtls_x509_crt::v3_ext

Optional X.509 v3 extensions.

Definition at line 79 of file x509_crt.h.

## ◆ val [1/2]

mbedtls_x509_buf mbedtls_x509_san_other_name::val

The named value.

Definition at line 128 of file x509_crt.h.

## ◆ val [2/2]

mbedtls_x509_buf { ... } ::val

The named value.

Definition at line 128 of file x509_crt.h.

## ◆ valid_from

mbedtls_x509_time mbedtls_x509_crt::valid_from

Start time of certificate validity.

Definition at line 71 of file x509_crt.h.

## ◆ valid_to

mbedtls_x509_time mbedtls_x509_crt::valid_to

End time of certificate validity.

Definition at line 72 of file x509_crt.h.

## ◆ value

union { ... } mbedtls_x509_san_other_name::value

## ◆ version [1/4]

int mbedtls_x509_crl::version

CRL version (1=v1, 2=v2)

Definition at line 75 of file x509_crl.h.

## ◆ version [2/4]

int mbedtls_x509_crt::version

The X.509 version. (1=v1, 2=v2, 3=v3)

Definition at line 61 of file x509_crt.h.

## ◆ version [3/4]

int mbedtls_x509write_cert::version

Definition at line 186 of file x509_crt.h.

## ◆ version [4/4]

int mbedtls_x509_csr::version

CSR version (1=v1).

Definition at line 56 of file x509_csr.h.

## ◆ year

int mbedtls_x509_time::year

Definition at line 234 of file x509.h.

MBEDTLS_ERR_X509_BUFFER_TOO_SMALL
#define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL
Definition: x509.h:79