GENERIC_ERROR returned on asn1_der_coding method

Description of problem:

GENERIC_ERROR (error code 6) returned on asn1_der_coding method

Version of libtasn1 used:

1.4.13

Distributor of libtasn1 (e.g., Ubuntu, Fedora, RHEL)

https://www.gnu.org/software/libtasn1/

How reproducible: Always

Steps to Reproduce:

• one

ingest the following schema with asn1_parser2tree --> ASN1_SUCCESS:

Schema { }

DEFINITIONS IMPLICIT TAGS ::=

BEGIN

Response ::= SEQUENCE {
    a OCTET STRING (SIZE (2)),
    b BOOLEAN,
    c INTEGER,
    d INTEGER
}

END

• two

populate the structure with asn1_write_value for each item, then print it with asn1_print_structure:

name:Schema  type:DEFINITIONS  attr:IMPLICIT,
  name:NULL  type:OBJ_ID
  name:Response  type:SEQUENCE
    name:a  type:OCT_STR  value:0100  attr:SIZE,
      name:NULL  type:SIZE  value:2  attr:1_PARAM,
    name:b  type:BOOLEAN  value:FALSE
    name:c  type:INTEGER  value:0x05
    name:d  type:INTEGER  value:0x03

• three

try to generate the corresponding DER using asn1_der_coding(..., "Schema", ..., ..., ...) --> error code 6: GENERIC_ERROR

Actual results:

GENERIC_ERROR

Expected results:

DER encoded buffer or a meaningful error.