asn1_der_decoding_element - Man Page

API function


#include <libtasn1.h>

int asn1_der_decoding_element(asn1_node * structure, const char * elementName, const void * ider, int len, char * errorDescription);


asn1_node * structure

pointer to an ASN1 structure

const char * elementName

name of the element to fill

const void * ider

vector that contains the DER encoding of the whole structure.

int len

number of bytes of *der: der[0]..der[len-1]

char * errorDescription

null-terminated string contains details when an error occurred.


Fill the element named  ELEMENTNAME with values of a DER encoding string.  The structure must just be created with function asn1_create_element().  The DER vector must contain the encoding string of the whole  STRUCTURE .  If an error occurs during the decoding procedure, the * STRUCTURE is deleted and set equal to NULL.

This function is deprecated and may just be an alias to asn1_der_decoding in future versions. Use asn1_der_decoding() instead.


ASN1_SUCCESS if DER encoding OK, ASN1_ELEMENT_NOT_FOUND if ELEMENT is NULL or  elementName == NULL, and ASN1_TAG_ERROR or ASN1_DER_ERROR if the der encoding doesn't match the structure  structure (*ELEMENT deleted).

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:


4.19.0 libtasn1