Data Structures |
struct | mbedtls_asn1_buf |
struct | mbedtls_asn1_bitstring |
struct | mbedtls_asn1_sequence |
struct | mbedtls_asn1_named_data |
Defines |
#define | MBEDTLS_OID_SIZE(x) (sizeof(x) - 1) |
#define | MBEDTLS_OID_CMP(oid_str, oid_buf) |
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These error codes are OR'ed to X509 error codes for higher error granularity. ASN1 is a standard to specify data structures.
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#define | MBEDTLS_ERR_ASN1_OUT_OF_DATA -0x0060 |
#define | MBEDTLS_ERR_ASN1_UNEXPECTED_TAG -0x0062 |
#define | MBEDTLS_ERR_ASN1_INVALID_LENGTH -0x0064 |
#define | MBEDTLS_ERR_ASN1_LENGTH_MISMATCH -0x0066 |
#define | MBEDTLS_ERR_ASN1_INVALID_DATA -0x0068 |
#define | MBEDTLS_ERR_ASN1_ALLOC_FAILED -0x006A |
#define | MBEDTLS_ERR_ASN1_BUF_TOO_SMALL -0x006C |
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These constants comply with the DER encoded ASN.1 type tags. DER encoding uses hexadecimal representation. An example DER sequence is:
- 0x02 -- tag indicating INTEGER
- 0x01 -- length in octets
- 0x05 -- value Such sequences are typically read into
mbedtls_x509_buf .
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#define | MBEDTLS_ASN1_BOOLEAN 0x01 |
#define | MBEDTLS_ASN1_INTEGER 0x02 |
#define | MBEDTLS_ASN1_BIT_STRING 0x03 |
#define | MBEDTLS_ASN1_OCTET_STRING 0x04 |
#define | MBEDTLS_ASN1_NULL 0x05 |
#define | MBEDTLS_ASN1_OID 0x06 |
#define | MBEDTLS_ASN1_UTF8_STRING 0x0C |
#define | MBEDTLS_ASN1_SEQUENCE 0x10 |
#define | MBEDTLS_ASN1_SET 0x11 |
#define | MBEDTLS_ASN1_PRINTABLE_STRING 0x13 |
#define | MBEDTLS_ASN1_T61_STRING 0x14 |
#define | MBEDTLS_ASN1_IA5_STRING 0x16 |
#define | MBEDTLS_ASN1_UTC_TIME 0x17 |
#define | MBEDTLS_ASN1_GENERALIZED_TIME 0x18 |
#define | MBEDTLS_ASN1_UNIVERSAL_STRING 0x1C |
#define | MBEDTLS_ASN1_BMP_STRING 0x1E |
#define | MBEDTLS_ASN1_PRIMITIVE 0x00 |
#define | MBEDTLS_ASN1_CONSTRUCTED 0x20 |
#define | MBEDTLS_ASN1_CONTEXT_SPECIFIC 0x80 |
#define | MBEDTLS_ASN1_TAG_CLASS_MASK 0xC0 |
#define | MBEDTLS_ASN1_TAG_PC_MASK 0x20 |
#define | MBEDTLS_ASN1_TAG_VALUE_MASK 0x1F |
Functions |
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int | mbedtls_asn1_get_len (unsigned char **p, const unsigned char *end, size_t *len) |
| Get the length of an ASN.1 element. Updates the pointer to immediately behind the length.
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int | mbedtls_asn1_get_tag (unsigned char **p, const unsigned char *end, size_t *len, int tag) |
| Get the tag and length of the tag. Check for the requested tag. Updates the pointer to immediately behind the tag and length.
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int | mbedtls_asn1_get_bool (unsigned char **p, const unsigned char *end, int *val) |
| Retrieve a boolean ASN.1 tag and its value. Updates the pointer to immediately behind the full tag.
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int | mbedtls_asn1_get_int (unsigned char **p, const unsigned char *end, int *val) |
| Retrieve an integer ASN.1 tag and its value. Updates the pointer to immediately behind the full tag.
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int | mbedtls_asn1_get_bitstring (unsigned char **p, const unsigned char *end, mbedtls_asn1_bitstring *bs) |
| Retrieve a bitstring ASN.1 tag and its value. Updates the pointer to immediately behind the full tag.
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int | mbedtls_asn1_get_bitstring_null (unsigned char **p, const unsigned char *end, size_t *len) |
| Retrieve a bitstring ASN.1 tag without unused bits and its value. Updates the pointer to the beginning of the bit/octet string.
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int | mbedtls_asn1_get_sequence_of (unsigned char **p, const unsigned char *end, mbedtls_asn1_sequence *cur, int tag) |
| Parses and splits an ASN.1 "SEQUENCE OF <tag>" Updated the pointer to immediately behind the full sequence tag.
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int | mbedtls_asn1_get_alg (unsigned char **p, const unsigned char *end, mbedtls_asn1_buf *alg, mbedtls_asn1_buf *params) |
| Retrieve an AlgorithmIdentifier ASN.1 sequence. Updates the pointer to immediately behind the full AlgorithmIdentifier.
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int | mbedtls_asn1_get_alg_null (unsigned char **p, const unsigned char *end, mbedtls_asn1_buf *alg) |
| Retrieve an AlgorithmIdentifier ASN.1 sequence with NULL or no params. Updates the pointer to immediately behind the full AlgorithmIdentifier.
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mbedtls_asn1_named_data * | mbedtls_asn1_find_named_data (mbedtls_asn1_named_data *list, const char *oid, size_t len) |
| Find a specific named_data entry in a sequence or list based on the OID.
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void | mbedtls_asn1_free_named_data (mbedtls_asn1_named_data *entry) |
| Free a mbedtls_asn1_named_data entry.
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void | mbedtls_asn1_free_named_data_list (mbedtls_asn1_named_data **head) |
| Free all entries in a mbedtls_asn1_named_data list Head will be set to NULL.
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Generic ASN.1 parsing.