asn1_octet_der - API function

       const unsigned char * str
                   the input data.

       int str_len STR length (str[0]..str[*str_len-1]).

       unsigned char * der
                   encoded string returned.

       int * der_len
                   number of meaningful bytes of DER (der[0]..der[der_len-1]).

       Copyright © 2006-2025 Free Software Foundation, Inc..
       Copying and distribution of this file, with or without modification, are permitted in any medium  without
       royalty provided the copyright notice and this notice are preserved.

       Creates  a  length-value  DER  encoding  for  the input data.  The DER encoding of the input data will be
       placed in the  der variable.

       Note that the OCTET STRING tag is not included in the output.

       This function does not return any value because it is expected that  der_len will contain enough bytes to
       store the string plus the DER encoding. The DER encoding size can be obtained using asn1_length_der().

       asn1_octet_der - API function

       The full documentation for libtasn1 is maintained as a Texinfo manual.  If the info and libtasn1 programs
       are properly installed at your site, the command

              infolibtasn1

       should give you access to the complete manual.  As an alternative you may obtain the manual from:

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

libtasn1                                             4.20.0                                    asn1_octet_der(3)

#include<libtasn1.h>voidasn1_octet_der(constunsignedchar*str,intstr_len,unsignedchar*der,int*der_len);