asn1_encode_simple_der(3) libtasn1 asn1_encode_simple_der(3)

asn1_encode_simple_der - API function

#include <libtasn1.h>

int asn1_encode_simple_der(unsigned int etype, const unsigned char * str, unsigned int str_len, unsigned char * tl, unsigned int * tl_len);

The type of the string to be encoded (ASN1_ETYPE_)
the string data.
the string length
the encoded tag and length
the bytes of the tl field

Creates the DER encoding for various simple ASN.1 types like strings etc. It stores the tag and length in tl , which should have space for at least ASN1_MAX_TL_SIZE bytes. Initially tl_len should contain the size of tl .

The complete DER encoding should consist of the value in tl appended with the provided str .

ASN1_SUCCESS if successful or an error value.

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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/
4.18.0 libtasn1