Asn1_module

## ASN1 Error codes

These error codes are OR'ed to X509 error codes for higher error granularity. ASN1 is a standard to specify data structures.
#define | MBEDTLS_ERR_ASN1_OUT_OF_DATA -0x0060
| Out of data when parsing an ASN1 data structure. More...
#define | MBEDTLS_ERR_ASN1_UNEXPECTED_TAG -0x0062
| ASN1 tag was of an unexpected value. More...
#define | MBEDTLS_ERR_ASN1_INVALID_LENGTH -0x0064
| Error when trying to determine the length or invalid length. More...
#define | MBEDTLS_ERR_ASN1_LENGTH_MISMATCH -0x0066
| Actual length differs from expected length. More...
#define | MBEDTLS_ERR_ASN1_INVALID_DATA -0x0068
| Data is invalid. More...
#define | MBEDTLS_ERR_ASN1_ALLOC_FAILED -0x006A
| Memory allocation failed. More...
#define | MBEDTLS_ERR_ASN1_BUF_TOO_SMALL -0x006C
| Buffer too small when writing ASN.1 data structure. More...

## DER constants

These constants comply with DER encoded the ANS1 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`.

#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

## Detailed Description

## Macro Definition Documentation

#define MBEDTLS_ASN1_BIT_STRING 0x03

Definition at line 73 of file asn1.h.

#define MBEDTLS_ASN1_BMP_STRING 0x1E

Definition at line 86 of file asn1.h.

#define MBEDTLS_ASN1_BOOLEAN 0x01

Definition at line 71 of file asn1.h.

#define MBEDTLS_ASN1_CONSTRUCTED 0x20

Definition at line 88 of file asn1.h.

#define MBEDTLS_ASN1_CONTEXT_SPECIFIC 0x80

Definition at line 89 of file asn1.h.

#define MBEDTLS_ASN1_GENERALIZED_TIME 0x18

Definition at line 84 of file asn1.h.

#define MBEDTLS_ASN1_IA5_STRING 0x16

Definition at line 82 of file asn1.h.

#define MBEDTLS_ASN1_INTEGER 0x02

Definition at line 72 of file asn1.h.

#define MBEDTLS_ASN1_NULL 0x05

Definition at line 75 of file asn1.h.

#define MBEDTLS_ASN1_OCTET_STRING 0x04

Definition at line 74 of file asn1.h.

#define MBEDTLS_ASN1_OID 0x06

Definition at line 76 of file asn1.h.

#define MBEDTLS_ASN1_PRIMITIVE 0x00

Definition at line 87 of file asn1.h.

#define MBEDTLS_ASN1_PRINTABLE_STRING 0x13

Definition at line 80 of file asn1.h.

#define MBEDTLS_ASN1_SEQUENCE 0x10

Definition at line 78 of file asn1.h.

#define MBEDTLS_ASN1_SET 0x11

Definition at line 79 of file asn1.h.

#define MBEDTLS_ASN1_T61_STRING 0x14

Definition at line 81 of file asn1.h.

#define MBEDTLS_ASN1_UNIVERSAL_STRING 0x1C

Definition at line 85 of file asn1.h.

#define MBEDTLS_ASN1_UTC_TIME 0x17

Definition at line 83 of file asn1.h.

#define MBEDTLS_ASN1_UTF8_STRING 0x0C

Definition at line 77 of file asn1.h.

#define MBEDTLS_ERR_ASN1_ALLOC_FAILED -0x006A

Memory allocation failed.

Definition at line 55 of file asn1.h.

#define MBEDTLS_ERR_ASN1_BUF_TOO_SMALL -0x006C

Buffer too small when writing ASN.1 data structure.

Definition at line 56 of file asn1.h.

#define MBEDTLS_ERR_ASN1_INVALID_DATA -0x0068

Data is invalid.

(not used)

Definition at line 54 of file asn1.h.

#define MBEDTLS_ERR_ASN1_INVALID_LENGTH -0x0064

Error when trying to determine the length or invalid length.

Definition at line 52 of file asn1.h.

#define MBEDTLS_ERR_ASN1_LENGTH_MISMATCH -0x0066

Actual length differs from expected length.

Definition at line 53 of file asn1.h.

#define MBEDTLS_ERR_ASN1_OUT_OF_DATA -0x0060

Out of data when parsing an ASN1 data structure.

Definition at line 50 of file asn1.h.

#define MBEDTLS_ERR_ASN1_UNEXPECTED_TAG -0x0062

ASN1 tag was of an unexpected value.

Definition at line 51 of file asn1.h.