Manpages - asn1_length_der.3

asn1_length_der - API function

#include <libtasn1.h>

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

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]).

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 .

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