asn1_bit_der - Man Page

#include <libtasn1.h>

void asn1_bit_der(const unsigned char * str, int bit_len, unsigned char * der, int * der_len);

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]).

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().

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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/