Overview

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

#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

DER constants
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`.
#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

Macro Definition Documentation

#define MBEDTLS_ERR_ASN1_OUT_OF_DATA -0x0060

Out of data when parsing an ASN1 data structure.

#define MBEDTLS_ERR_ASN1_UNEXPECTED_TAG -0x0062

ASN1 tag was of an unexpected value.

#define MBEDTLS_ERR_ASN1_INVALID_LENGTH -0x0064

Error when trying to determine the length or invalid length.

#define MBEDTLS_ERR_ASN1_LENGTH_MISMATCH -0x0066

Actual length differs from expected length.

#define MBEDTLS_ERR_ASN1_INVALID_DATA -0x0068

Data is invalid. (not used)

#define MBEDTLS_ERR_ASN1_ALLOC_FAILED -0x006A

Memory allocation failed

#define MBEDTLS_ERR_ASN1_BUF_TOO_SMALL -0x006C

Buffer too small when writing ASN.1 data structure.