@subheading asn1_get_octet_der
@anchor{asn1_get_octet_der}
@deftypefun {int} {asn1_get_octet_der} (const unsigned char * @var{der}, int @var{der_len}, int * @var{ret_len}, unsigned char * @var{str}, int @var{str_size}, int * @var{str_len})
@var{der}: DER data to decode containing the OCTET SEQUENCE.

@var{der_len}: The length of the  @code{der} data to decode.

@var{ret_len}: Output variable containing the encoded length of the DER data.

@var{str}: Pre-allocated output buffer to put decoded OCTET SEQUENCE in.

@var{str_size}: Length of pre-allocated output buffer.

@var{str_len}: Output variable containing the length of the contents of the OCTET SEQUENCE.

Extract an OCTET SEQUENCE from DER data. Note that this function
expects the DER data past the tag field, i.e., the length and
content octets.

@strong{Returns:} Returns @code{ASN1_SUCCESS}  on success, or an error.
@end deftypefun

