NAME

       asn1_length_der - API function

SYNOPSIS

       #include <libtasn1.h>

       void asn1_length_der(unsigned long int len, unsigned char * der, int * der_len);

ARGUMENTS

       unsigned long int len
                   value to convert.

       unsigned char * der
                   buffer to hold the returned encoding (may be NULL).

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

DESCRIPTION

       Creates  the  DER encoding of the provided length value.  The  der buffer must have enough
       room for the output. The maximum length this function will encode is ASN1_MAX_LENGTH_SIZE.

       To know the size of the DER encoding use a NULL value for  der .

COPYRIGHT

       Copyright © 2006-2022 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.

SEE ALSO

       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

              info libtasn1

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

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