asn1_bit_der - API function

       const unsigned char * str
                   BIT string.

       int bit_len number of meaningful bits in STR.

       unsigned char * der
                   string returned.

       int * der_len
                   number of meaningful bytes of DER (der[0]..der[ans_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 as it would have been for a BIT STRING.  The DER
       encoded data will be copied in  der .

       Note that the BIT 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_bit_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_bit_der(3)

#include<libtasn1.h>voidasn1_bit_der(constunsignedchar*str,intbit_len,unsignedchar*der,int*der_len);