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asn1_length_der(3)		    libtasn1		      asn1_length_der(3)

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 (C) 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.

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/

libtasn1			     4.21.0		      asn1_length_der(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=asn1_length_der&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>

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