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asn1_octet_der(3) libtasn1 asn1_octet_der(3)


asn1_octet_der - API function


#include <libtasn1.h>

void asn1_octet_der(const unsigned char * str, int str_len, unsigned char * der, int * der_len);


the input data.
STR length (str[0]..str[*str_len-1]).
encoded string returned.
number of meaningful bytes of DER (der[0]..der[der_len-1]).


Creates a length-value DER encoding for the input data. The DER encoding of the input data will be placed in the der variable.

Note that the OCTET 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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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.


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:
4.19.0 libtasn1